------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1049242 hardirqs last enabled at (1049241): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1049241): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1049242): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1042942): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1042942): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1042929): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1049534 hardirqs last enabled at (1049533): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1049533): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1049534): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1049462): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1049462): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1049245): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1049920 hardirqs last enabled at (1049919): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1049919): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1049920): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1049808): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1049808): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1049537): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1050080 hardirqs last enabled at (1050079): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1050079): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1050080): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1050008): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1050008): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1049923): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1050526 hardirqs last enabled at (1050525): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1050525): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1050526): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1050436): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1050436): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1050083): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1050780 hardirqs last enabled at (1050779): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1050779): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1050780): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1050708): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1050708): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1050529): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1051290 hardirqs last enabled at (1051289): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1051289): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1051290): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1051186): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1051186): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1050783): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1051486 hardirqs last enabled at (1051485): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1051485): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1051486): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1051406): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1051406): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1051293): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1051860 hardirqs last enabled at (1051859): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1051859): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1051860): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1051756): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1051756): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1051489): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1052148 hardirqs last enabled at (1052147): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1052147): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1052148): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1052070): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1052070): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1051863): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1052682 hardirqs last enabled at (1052681): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1052681): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1052682): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1052580): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1052580): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1052151): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1052876 hardirqs last enabled at (1052875): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1052875): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1052876): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1052804): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1052804): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1052685): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1053130 hardirqs last enabled at (1053129): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1053129): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1053130): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1053014): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1053014): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1052879): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1054122 hardirqs last enabled at (1054121): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1054121): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1054122): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1054050): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1054050): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1053133): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1054540 hardirqs last enabled at (1054539): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1054539): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1054540): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1054450): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1054450): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1054125): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1054674 hardirqs last enabled at (1054673): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1054673): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1054674): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1054602): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1054602): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1054543): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1054830 hardirqs last enabled at (1054829): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1054829): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1054830): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1054724): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1054724): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1054677): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1055262 hardirqs last enabled at (1055261): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1055261): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1055262): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1055184): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1055184): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1054833): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1055444 hardirqs last enabled at (1055443): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1055443): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1055444): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1055324): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1055324): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1055265): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1055736 hardirqs last enabled at (1055735): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1055735): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1055736): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1055664): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1055664): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1055447): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1056230 hardirqs last enabled at (1056229): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1056229): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1056230): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1056124): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1056124): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1055739): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1056488 hardirqs last enabled at (1056487): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1056487): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1056488): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1056416): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1056416): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1056233): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1056864 hardirqs last enabled at (1056863): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1056863): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1056864): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1056768): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1056768): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1056491): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1057122 hardirqs last enabled at (1057121): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1057121): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1057122): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1057050): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1057050): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1056867): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1057608 hardirqs last enabled at (1057607): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1057607): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1057608): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1057512): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1057512): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1057125): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1057882 hardirqs last enabled at (1057881): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1057881): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1057882): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1057804): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1057804): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1057611): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1058664 hardirqs last enabled at (1058663): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1058663): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1058664): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1058112): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1058112): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1057885): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1058804 hardirqs last enabled at (1058803): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1058803): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1058804): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1058716): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1058716): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1058667): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1059340 hardirqs last enabled at (1059339): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1059339): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1059340): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1059236): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1059236): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1058807): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1059480 hardirqs last enabled at (1059479): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1059479): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1059480): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1059408): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1059408): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1059343): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1060154 hardirqs last enabled at (1060153): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1060153): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1060154): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1060058): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1060058): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1059483): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1060292 hardirqs last enabled at (1060291): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1060291): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1060292): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1060220): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1060220): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1060157): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1060874 hardirqs last enabled at (1060873): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1060873): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1060874): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1060778): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1060778): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1060295): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1061122 hardirqs last enabled at (1061121): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1061121): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1061122): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1061050): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1061050): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1060877): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1061656 hardirqs last enabled at (1061655): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:84 [inline] hardirqs last enabled at (1061655): [] exit_to_kernel_mode+0xcc/0xfc arch/arm64/kernel/entry-common.c:94 hardirqs last disabled at (1061656): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1061558): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1061558): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1061125): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1062132 hardirqs last enabled at (1062131): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1062131): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1062132): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1062060): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1062060): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1061659): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1062492 hardirqs last enabled at (1062491): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1062491): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1062492): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1062386): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1062386): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1062135): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1062838 hardirqs last enabled at (1062837): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1062837): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1062838): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1062748): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1062748): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1062495): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1063380 hardirqs last enabled at (1063379): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1063379): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1063380): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1063270): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1063270): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1062841): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1063518 hardirqs last enabled at (1063517): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1063517): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1063518): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1063430): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1063430): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1063383): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1063808 hardirqs last enabled at (1063807): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1063807): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1063808): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1063718): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1063718): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1063521): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1064248 hardirqs last enabled at (1064247): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1064247): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1064248): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1064176): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1064176): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1063811): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1064522 hardirqs last enabled at (1064521): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1064521): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1064522): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1064418): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1064418): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1064251): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1064816 hardirqs last enabled at (1064815): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1064815): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1064816): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1064744): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1064744): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1064525): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1065714 hardirqs last enabled at (1065713): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1065713): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1065714): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1065044): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1065044): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1064819): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1066108 hardirqs last enabled at (1066107): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1066107): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1066108): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1066036): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1066036): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1065717): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1066386 hardirqs last enabled at (1066385): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1066385): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1066386): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1066288): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1066288): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1066111): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1066514 hardirqs last enabled at (1066513): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1066513): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1066514): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1066442): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1066442): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1066389): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1067768 hardirqs last enabled at (1067767): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1067767): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1067768): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1067114): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1067114): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1066517): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1068042 hardirqs last enabled at (1068041): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1068041): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1068042): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1067970): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1067970): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1067771): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1068462 hardirqs last enabled at (1068461): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1068461): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1068462): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1068364): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1068364): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1068045): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1068592 hardirqs last enabled at (1068591): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1068591): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1068592): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1068520): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1068520): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1068465): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1069098 hardirqs last enabled at (1069097): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1069097): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1069098): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1068990): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1068990): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1068595): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1069248 hardirqs last enabled at (1069247): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1069247): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1069248): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1069176): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1069176): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1069101): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1069856 hardirqs last enabled at (1069855): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1069855): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1069856): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1069744): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1069744): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1069251): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1070222 hardirqs last enabled at (1070221): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1070221): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1070222): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1070150): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1070150): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1069859): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1070646 hardirqs last enabled at (1070645): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1070645): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1070646): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1070542): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1070542): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1070225): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1070764 hardirqs last enabled at (1070763): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1070763): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1070764): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1070692): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1070692): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1070649): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1071372 hardirqs last enabled at (1071371): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1071371): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1071372): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1071248): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1071248): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1070767): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1071518 hardirqs last enabled at (1071517): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1071517): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1071518): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1071446): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1071446): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1071375): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1072106 hardirqs last enabled at (1072105): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1072105): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1072106): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1072010): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1072010): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1071521): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1072220 hardirqs last enabled at (1072219): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1072219): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1072220): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1072148): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1072148): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1072109): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1072742 hardirqs last enabled at (1072741): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1072741): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1072742): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1072638): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1072638): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1072223): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1073144 hardirqs last enabled at (1073143): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1073143): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1073144): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1073072): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1073072): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1072745): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1073642 hardirqs last enabled at (1073641): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1073641): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1073642): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1073546): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1073546): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1073147): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1073988 hardirqs last enabled at (1073987): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1073987): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1073988): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1073914): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1073914): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1073645): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1074510 hardirqs last enabled at (1074509): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1074509): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1074510): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1074412): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1074412): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1073991): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1074666 hardirqs last enabled at (1074665): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1074665): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1074666): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1074594): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1074594): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1074513): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1075280 hardirqs last enabled at (1075279): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1075279): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1075280): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1075156): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1075156): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1074669): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1075426 hardirqs last enabled at (1075425): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1075425): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1075426): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1075354): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1075354): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1075283): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1075734 hardirqs last enabled at (1075733): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1075733): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1075734): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1075624): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1075624): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1075429): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1075888 hardirqs last enabled at (1075887): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1075887): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1075888): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1075816): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1075816): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1075737): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1076594 hardirqs last enabled at (1076593): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1076593): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1076594): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1076482): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1076482): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1075891): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1076920 hardirqs last enabled at (1076919): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1076919): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1076920): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1076848): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1076848): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1076597): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1077058 hardirqs last enabled at (1077057): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1077057): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1077058): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1076960): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1076960): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1076923): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1077792 hardirqs last enabled at (1077791): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1077791): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1077792): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1077720): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1077720): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1077061): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1077968 hardirqs last enabled at (1077967): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1077967): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1077968): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1077866): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1077866): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1077795): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1078574 hardirqs last enabled at (1078573): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1078573): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1078574): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1078496): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1078496): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1077971): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1078756 hardirqs last enabled at (1078755): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1078755): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1078756): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1078658): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1078658): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1078577): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1079378 hardirqs last enabled at (1079377): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1079377): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1079378): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1079306): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1079306): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1078759): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1079728 hardirqs last enabled at (1079727): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1079727): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1079728): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1079686): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1079686): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1079511): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1079872 hardirqs last enabled at (1079871): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1079871): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1079872): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1079800): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1079800): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1079731): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1080066 hardirqs last enabled at (1080065): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1080065): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1080066): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1079976): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1079976): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1079875): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1080178 hardirqs last enabled at (1080177): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1080177): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1080178): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1080106): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1080106): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1080069): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1080698 hardirqs last enabled at (1080697): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1080697): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1080698): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1080594): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1080594): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1080181): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1080848 hardirqs last enabled at (1080847): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1080847): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1080848): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1080776): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1080776): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1080703): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1081426 hardirqs last enabled at (1081425): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1081425): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1081426): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1081336): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1081336): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1080851): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1081698 hardirqs last enabled at (1081697): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1081697): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1081698): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1081626): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1081626): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1081429): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1082222 hardirqs last enabled at (1082221): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1082221): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1082222): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1082118): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1082118): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1081701): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1082466 hardirqs last enabled at (1082465): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1082465): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1082466): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1082394): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1082394): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1082225): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1083208 hardirqs last enabled at (1083207): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1083207): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1083208): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1083168): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1083168): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1082947): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1083418 hardirqs last enabled at (1083417): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1083417): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1083418): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1083340): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1083340): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1083211): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1083562 hardirqs last enabled at (1083561): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1083561): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1083562): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1083472): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1083472): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1083421): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1084130 hardirqs last enabled at (1084129): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1084129): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1084130): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1084058): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1084058): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1083565): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1084318 hardirqs last enabled at (1084317): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1084317): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1084318): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1084208): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1084208): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1084133): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1084756 hardirqs last enabled at (1084755): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1084755): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1084756): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1084684): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1084684): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1084321): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1084908 hardirqs last enabled at (1084907): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1084907): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1084908): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1084818): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1084818): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1084759): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1085124 hardirqs last enabled at (1085123): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1085123): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1085124): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1085052): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1085052): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1084911): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1085318 hardirqs last enabled at (1085317): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1085317): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1085318): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1085216): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1085216): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1085127): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1085496 hardirqs last enabled at (1085495): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1085495): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1085496): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1085424): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1085424): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1085321): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1086068 hardirqs last enabled at (1086067): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1086067): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1086068): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1085978): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1085978): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1085499): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1086198 hardirqs last enabled at (1086197): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1086197): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1086198): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1086124): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1086124): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1086071): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1087308 hardirqs last enabled at (1087307): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1087307): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1087308): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1086582): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1086582): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1086201): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1087432 hardirqs last enabled at (1087431): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1087431): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1087432): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1087360): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1087360): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1087311): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1088096 hardirqs last enabled at (1088095): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1088095): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1088096): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1087994): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1087994): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1087435): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1088306 hardirqs last enabled at (1088305): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1088305): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1088306): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1088296): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1088296): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1088211): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1088668 hardirqs last enabled at (1088667): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1088667): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1088668): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1088566): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1088566): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1088309): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1089298 hardirqs last enabled at (1089297): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1089297): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1089298): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1089226): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1089226): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1088671): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1089430 hardirqs last enabled at (1089429): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1089429): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1089430): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1089334): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1089334): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1089301): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1090080 hardirqs last enabled at (1090079): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1090079): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1090080): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1089992): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1089992): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1089433): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1090342 hardirqs last enabled at (1090341): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1090341): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1090342): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1090246): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1090246): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1090083): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1090646 hardirqs last enabled at (1090645): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1090645): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1090646): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1090574): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1090574): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1090345): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1091046 hardirqs last enabled at (1091045): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1091045): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1091046): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1090950): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1090950): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1090649): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1091186 hardirqs last enabled at (1091185): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1091185): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1091186): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1091114): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1091114): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1091049): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1091560 hardirqs last enabled at (1091559): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1091559): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1091560): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1091464): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1091464): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1091189): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1091914 hardirqs last enabled at (1091913): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1091913): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1091914): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1091842): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1091842): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1091563): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1092060 hardirqs last enabled at (1092059): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1092059): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1092060): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1091964): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1091964): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1091917): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1092356 hardirqs last enabled at (1092355): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1092355): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1092356): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1092284): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1092284): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1092063): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1092570 hardirqs last enabled at (1092569): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1092569): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1092570): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1092474): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1092474): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1092359): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1092984 hardirqs last enabled at (1092983): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1092983): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1092984): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1092912): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1092912): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1092573): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1093176 hardirqs last enabled at (1093175): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1093175): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1093176): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1093080): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1093080): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1092987): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1093414 hardirqs last enabled at (1093413): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1093413): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1093414): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1093342): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1093342): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1093179): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1093748 hardirqs last enabled at (1093747): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1093747): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1093748): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1093640): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1093640): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1093417): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1094014 hardirqs last enabled at (1094013): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1094013): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1094014): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1093942): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1093942): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1093751): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1094484 hardirqs last enabled at (1094483): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1094483): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1094484): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1094394): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1094394): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1094017): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1094640 hardirqs last enabled at (1094639): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1094639): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1094640): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1094568): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1094568): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1094487): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1095220 hardirqs last enabled at (1095219): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1095219): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1095220): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1095118): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1095118): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1094643): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1095356 hardirqs last enabled at (1095355): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1095355): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1095356): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1095284): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1095284): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1095223): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1095504 hardirqs last enabled at (1095503): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1095503): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1095504): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1095402): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1095402): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1095359): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1095976 hardirqs last enabled at (1095975): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1095975): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1095976): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1095904): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1095904): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1095507): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1096802 hardirqs last enabled at (1096801): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1096801): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1096802): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1096060): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1096060): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1095979): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1097086 hardirqs last enabled at (1097085): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1097085): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1097086): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1097014): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1097014): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1096805): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1097436 hardirqs last enabled at (1097435): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1097435): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1097436): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1097340): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1097340): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1097089): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1097720 hardirqs last enabled at (1097719): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1097719): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1097720): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1097646): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1097646): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1097439): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1101144 hardirqs last enabled at (1101143): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1101143): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1101144): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1101048): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1101048): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1097723): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1101330 hardirqs last enabled at (1101329): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1101329): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1101330): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1101258): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1101258): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1101147): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1101712 hardirqs last enabled at (1101711): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1101711): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1101712): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1101616): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1101616): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1101333): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1101834 hardirqs last enabled at (1101833): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1101833): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1101834): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1101766): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1101766): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1101715): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1102312 hardirqs last enabled at (1102311): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1102311): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1102312): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1102220): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1102220): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1101837): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1102592 hardirqs last enabled at (1102591): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1102591): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1102592): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1102534): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1102534): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1102479): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1102942 hardirqs last enabled at (1102941): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1102941): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1102942): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1102840): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1102840): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1102595): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1103536 hardirqs last enabled at (1103535): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1103535): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1103536): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1103464): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1103464): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1102945): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1103678 hardirqs last enabled at (1103677): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1103677): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1103678): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1103574): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1103574): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1103539): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1104304 hardirqs last enabled at (1104303): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1104303): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1104304): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1104232): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1104232): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1103681): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1104544 hardirqs last enabled at (1104543): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1104543): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1104544): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1104444): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1104444): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1104307): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1104688 hardirqs last enabled at (1104687): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1104687): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1104688): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1104616): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1104616): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1104547): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1106190 hardirqs last enabled at (1106189): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1106189): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1106190): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1105310): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1105310): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1104691): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1106524 hardirqs last enabled at (1106523): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1106523): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1106524): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1106452): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1106452): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1106193): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1107036 hardirqs last enabled at (1107035): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:84 [inline] hardirqs last enabled at (1107035): [] exit_to_kernel_mode+0xcc/0xfc arch/arm64/kernel/entry-common.c:94 hardirqs last disabled at (1107036): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1106914): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1106914): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1106527): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1107830 hardirqs last enabled at (1107829): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1107829): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1107830): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1107758): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1107758): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1107039): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1108970 hardirqs last enabled at (1108969): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1108969): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1108970): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1108262): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1108262): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1107833): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1109156 hardirqs last enabled at (1109155): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1109155): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1109156): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1109082): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1109082): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1108973): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1109306 hardirqs last enabled at (1109305): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1109305): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1109306): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1109202): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1109202): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1109159): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1109908 hardirqs last enabled at (1109907): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1109907): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1109908): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1109820): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1109820): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1109309): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1110062 hardirqs last enabled at (1110061): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1110061): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1110062): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1109972): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1109972): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1109911): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1110366 hardirqs last enabled at (1110365): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1110365): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1110366): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1110294): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1110294): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1110065): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1110690 hardirqs last enabled at (1110689): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1110689): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1110690): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1110670): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1110670): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1110635): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1111020 hardirqs last enabled at (1111019): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1111019): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1111020): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1110948): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1110948): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1110693): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1111182 hardirqs last enabled at (1111181): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1111181): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1111182): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1111086): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1111086): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1111023): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1111328 hardirqs last enabled at (1111327): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1111327): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1111328): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1111256): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1111256): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1111185): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1111622 hardirqs last enabled at (1111621): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1111621): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1111622): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1111532): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1111532): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1111331): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1111750 hardirqs last enabled at (1111749): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1111749): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1111750): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1111662): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1111662): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1111625): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1112474 hardirqs last enabled at (1112473): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1112473): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1112474): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1112378): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1112378): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1111753): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1112616 hardirqs last enabled at (1112615): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1112615): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1112616): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1112544): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1112544): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1112477): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1113436 hardirqs last enabled at (1113435): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1113435): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1113436): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1113338): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1113338): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1112619): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1113538 hardirqs last enabled at (1113537): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1113537): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1113538): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1113468): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1113468): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1113439): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1113736 hardirqs last enabled at (1113735): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1113735): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1113736): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1113640): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1113640): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1113541): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1114306 hardirqs last enabled at (1114305): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1114305): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1114306): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1114234): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1114234): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1113739): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1115056 hardirqs last enabled at (1115055): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1115055): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1115056): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1114452): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1114452): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1114387): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1115478 hardirqs last enabled at (1115477): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1115477): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1115478): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1115406): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1115406): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1115059): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1115660 hardirqs last enabled at (1115659): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1115659): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1115660): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1115556): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1115556): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1115481): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1115920 hardirqs last enabled at (1115919): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1115919): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1115920): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1115848): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1115848): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1115663): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1116222 hardirqs last enabled at (1116221): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1116221): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1116222): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1116126): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1116126): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1115923): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1116384 hardirqs last enabled at (1116383): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1116383): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1116384): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1116312): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1116312): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1116225): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 0 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1116686 hardirqs last enabled at (1116685): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1116685): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1116686): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1116582): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1116582): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1116387): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210966a0 x29: ffff8000210967e0 x28: ffff8000210966e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cdc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210965a4 x3 : 0000000000000001 x2 : ffff800021096708 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __mpage_writepage+0x39c/0x1298 fs/mpage.c:533 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1116938 hardirqs last enabled at (1116937): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1116937): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1116938): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1116850): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1116850): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1116689): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4483 at fs/udf/truncate.c:209 udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 Modules linked in: CPU: 1 PID: 4483 Comm: kworker/u4:7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 lr : udf_truncate_extents+0xa1c/0xb74 fs/udf/truncate.c:209 sp : ffff8000210965a0 x29: ffff8000210966e0 x28: ffff8000210965e0 x27: 1fffe0001c3381a2 x26: 0000000000000008 x25: dfff800000000000 x24: ffff700004212cbc x23: 0000000000000000 x22: 00000000000000ff x21: 0000003f38c7a007 x20: ffff0000f98ac000 x19: ffff0000e19c0e28 x18: 1fffe00033e7697e x17: ffff80001537d000 x16: ffff8000082dba2c x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000ff0100 x12: ffff800015930b50 x11: ff0080000987a598 x10: 0000000000000000 x9 : ffff80000987a598 x8 : ffff0000cd280000 x7 : ffff800009862e54 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000210964a4 x3 : 0000000000000001 x2 : ffff800021096608 x1 : 0000003f38c7a007 x0 : 0000000000000000 Call trace: udf_truncate_extents+0xa20/0xb74 fs/udf/truncate.c:-1 udf_do_extend_file+0xa3c/0xe08 fs/udf/inode.c:479 inode_getblk fs/udf/inode.c:686 [inline] udf_get_block+0xc1c/0x3474 fs/udf/inode.c:359 __block_write_full_page+0x2ec/0xec0 fs/buffer.c:1745 block_write_full_page+0x128/0x15c fs/buffer.c:-1 __mpage_writepage+0xf84/0x1298 fs/mpage.c:629 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 mpage_writepages+0xec/0x1ac fs/mpage.c:664 udf_writepages+0x30/0x40 fs/udf/inode.c:193 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1622 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 1117298 hardirqs last enabled at (1117297): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (1117297): [] __find_get_block+0x1c4/0xde4 fs/buffer.c:1303 hardirqs last disabled at (1117298): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1117196): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1117196): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1116941): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]---