------------[ cut here ]------------ WARNING: CPU: 0 PID: 6690 at fs/buffer.c:1183 mark_buffer_dirty+0x284/0x490 fs/buffer.c:1183 Modules linked in: CPU: 0 UID: 0 PID: 6690 Comm: syz.4.5 Not tainted syzkaller #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : mark_buffer_dirty+0x284/0x490 fs/buffer.c:1183 lr : mark_buffer_dirty+0x284/0x490 fs/buffer.c:1183 sp : ffff80009f5b73f0 x29: ffff80009f5b73f0 x28: ffff0000d6e22158 x27: dfff800000000000 x26: ffff0000e5ce8800 x25: ffff0000f50b8008 x24: ffff0000ddcf99f8 x23: ffff0000d6e22018 x22: ffff0000ddcf9570 x21: 1fffe0001adc442b x20: 0000000000000010 x19: ffff0000ddcf99f8 x18: 00000000ffffffff x17: ffff800093335000 x16: ffff80008052bd88 x15: 0000000000000001 x14: 1fffe0001bb9f33f x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000080000 x10: 0000000000001f97 x9 : ffff8000a691d000 x8 : 0000000000001f98 x7 : 0000000000000000 x6 : 0000000000000000 x5 : ffff0000e5ce8a00 x4 : ffff0000de744400 x3 : ffff800080e79e20 x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: mark_buffer_dirty+0x284/0x490 fs/buffer.c:1183 (P) bfs_move_block fs/bfs/file.c:44 [inline] bfs_move_blocks fs/bfs/file.c:57 [inline] bfs_get_block+0x4d8/0x9d4 fs/bfs/file.c:126 __block_write_begin_int+0x53c/0x15e8 fs/buffer.c:2145 block_write_begin+0xa0/0x128 fs/buffer.c:2256 bfs_write_begin+0x48/0xec fs/bfs/file.c:180 generic_perform_write+0x244/0x7bc mm/filemap.c:4254 __generic_file_write_iter+0xfc/0x204 mm/filemap.c:4371 generic_file_write_iter+0x10c/0x47c mm/filemap.c:4397 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x540/0xa3c fs/read_write.c:686 ksys_pwrite64 fs/read_write.c:793 [inline] __do_sys_pwrite64 fs/read_write.c:801 [inline] __se_sys_pwrite64 fs/read_write.c:798 [inline] __arm64_sys_pwrite64+0x170/0x208 fs/read_write.c:798 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x254 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x5c/0x254 arch/arm64/kernel/entry-common.c:724 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:743 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 irq event stamp: 2238 hardirqs last enabled at (2237): [] bh_lru_install fs/buffer.c:1353 [inline] hardirqs last enabled at (2237): [] find_get_block_common+0x970/0xde8 fs/buffer.c:1410 hardirqs last disabled at (2238): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:412 softirqs last enabled at (2200): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (2198): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]---