------------[ cut here ]------------ WARNING: CPU: 1 PID: 4332 at include/linux/backing-dev.h:247 inode_to_wb include/linux/backing-dev.h:243 [inline] WARNING: CPU: 1 PID: 4332 at include/linux/backing-dev.h:247 folio_account_dirtied mm/page-writeback.c:2587 [inline] WARNING: CPU: 1 PID: 4332 at include/linux/backing-dev.h:247 __folio_mark_dirty+0x8b8/0xce0 mm/page-writeback.c:2638 Modules linked in: CPU: 1 PID: 4332 Comm: syz-executor Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026 pstate: 824000c5 (Nzcv daIF +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : inode_to_wb include/linux/backing-dev.h:243 [inline] pc : folio_account_dirtied mm/page-writeback.c:2587 [inline] pc : __folio_mark_dirty+0x8b8/0xce0 mm/page-writeback.c:2638 lr : inode_to_wb include/linux/backing-dev.h:243 [inline] lr : folio_account_dirtied mm/page-writeback.c:2587 [inline] lr : __folio_mark_dirty+0x8b8/0xce0 mm/page-writeback.c:2638 sp : ffff800021af7700 x29: ffff800021af7710 x28: 1fffff800068cdc8 x27: 0000000000000000 x26: dfff800000000000 x25: 0000000000000000 x24: ffff0000c049c998 x23: 0000000000000001 x22: 0000000000000000 x21: 1fffe00018093933 x20: ffff0000d6f74c40 x19: fffffc0003466e40 x18: 1fffe00033c2597e x17: ffff8000163dd000 x16: ffff8000082dce18 x15: ffff00019e12cbfc x14: ffff70000435eec4 x13: 1ffff0000435eec4 x12: 0000000000000004 x11: ff0080000871c3e0 x10: 0000000000000000 x9 : ffff80000871c3e0 x8 : ffff0000d6071c00 x7 : ffff80000871bb6c x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : ffff8000082f5548 x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: inode_to_wb include/linux/backing-dev.h:243 [inline] folio_account_dirtied mm/page-writeback.c:2587 [inline] __folio_mark_dirty+0x8b8/0xce0 mm/page-writeback.c:2638 __set_page_dirty include/linux/pagemap.h:1118 [inline] mark_buffer_dirty+0x2b8/0x5c0 fs/buffer.c:1105 gfs2_unpin+0x128/0x918 fs/gfs2/lops.c:111 buf_lo_after_commit+0x144/0x18c fs/gfs2/lops.c:747 lops_after_commit fs/gfs2/lops.h:49 [inline] __gfs2_log_flush+0x12e8/0x1bd4 fs/gfs2/log.c:1118 gfs2_log_flush+0x3c/0x58 fs/gfs2/log.c:1180 gfs2_kill_sb+0x5c/0xd8 fs/gfs2/ops_fstype.c:1730 deactivate_locked_super+0xb4/0x128 fs/super.c:332 deactivate_super+0xe4/0x104 fs/super.c:363 cleanup_mnt+0x3a8/0x430 fs/namespace.c:1191 __cleanup_mnt+0x20/0x30 fs/namespace.c:1198 task_work_run+0x1f4/0x280 kernel/task_work.c:203 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] do_notify_resume+0x20f8/0x2c84 arch/arm64/kernel/signal.c:1166 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline] el0_svc+0x9c/0x12c arch/arm64/kernel/entry-common.c:638 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:589 irq event stamp: 562684 hardirqs last enabled at (562683): [] folio_memcg_lock+0xe8/0x1f8 mm/memcontrol.c:2113 hardirqs last disabled at (562684): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline] hardirqs last disabled at (562684): [] _raw_spin_lock_irqsave+0xa4/0xb0 kernel/locking/spinlock.c:162 softirqs last enabled at (562530): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (562528): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4332 at include/linux/backing-dev.h:247 inode_to_wb include/linux/backing-dev.h:243 [inline] WARNING: CPU: 1 PID: 4332 at include/linux/backing-dev.h:247 __folio_start_writeback+0x8a8/0xa98 mm/page-writeback.c:3003 Modules linked in: CPU: 1 PID: 4332 Comm: syz-executor Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026 pstate: 824000c5 (Nzcv daIF +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : inode_to_wb include/linux/backing-dev.h:243 [inline] pc : __folio_start_writeback+0x8a8/0xa98 mm/page-writeback.c:3003 lr : inode_to_wb include/linux/backing-dev.h:243 [inline] lr : __folio_start_writeback+0x8a8/0xa98 mm/page-writeback.c:3003 sp : ffff800021af7180 x29: ffff800021af7260 x28: ffff70000435ee38 x27: 0000000000000000 x26: ffff0000c049c7f0 x25: 1fffff800068cdc9 x24: dfff800000000000 x23: ffff0000d6f74c40 x22: ffff800021af71e0 x21: ffff0000c049c998 x20: 0000000000000001 x19: fffffc0003466e40 x18: 1fffe00033c2597e x17: ffff8000163dd000 x16: ffff8000082dce18 x15: 0000000000000000 x14: 0000000000000001 x13: 1fffff800068cdc8 x12: 0000000000000000 x11: ff0080000871e904 x10: 0000000000000000 x9 : ffff80000871e904 x8 : ffff0000d6071c00 x7 : ffff80000871e354 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : ffff80000871e390 x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: inode_to_wb include/linux/backing-dev.h:243 [inline] __folio_start_writeback+0x8a8/0xa98 mm/page-writeback.c:3003 set_page_writeback+0x5c/0x7c mm/folio-compat.c:56 gfs2_aspace_writepage+0x524/0x6f4 fs/gfs2/meta_io.c:73 __gfs2_writepage+0x70/0x184 fs/gfs2/log.c:87 write_cache_pages+0x760/0xe00 mm/page-writeback.c:2382 gfs2_ail1_start_one fs/gfs2/log.c:143 [inline] gfs2_ail1_flush+0x7a8/0x9f0 fs/gfs2/log.c:223 gfs2_ail1_start fs/gfs2/log.c:254 [inline] empty_ail1_list+0x130/0x214 fs/gfs2/log.c:987 __gfs2_log_flush+0x15c8/0x1bd4 fs/gfs2/log.c:1133 gfs2_log_flush+0x3c/0x58 fs/gfs2/log.c:1180 gfs2_kill_sb+0x5c/0xd8 fs/gfs2/ops_fstype.c:1730 deactivate_locked_super+0xb4/0x128 fs/super.c:332 deactivate_super+0xe4/0x104 fs/super.c:363 cleanup_mnt+0x3a8/0x430 fs/namespace.c:1191 __cleanup_mnt+0x20/0x30 fs/namespace.c:1198 task_work_run+0x1f4/0x280 kernel/task_work.c:203 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] do_notify_resume+0x20f8/0x2c84 arch/arm64/kernel/signal.c:1166 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline] el0_svc+0x9c/0x12c arch/arm64/kernel/entry-common.c:638 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:589 irq event stamp: 562988 hardirqs last enabled at (562987): [] folio_memcg_lock+0xe8/0x1f8 mm/memcontrol.c:2113 hardirqs last disabled at (562988): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline] hardirqs last disabled at (562988): [] _raw_spin_lock_irqsave+0xa4/0xb0 kernel/locking/spinlock.c:162 softirqs last enabled at (562952): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (562952): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (562687): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- gfs2: fsid=syz:syz.0: fatal: filesystem consistency error inode = 11 2339 function = gfs2_dinode_in, file = fs/gfs2/glops.c, line = 413 gfs2: fsid=syz:syz.0: G: s:EX n:2/923 f:qobnN t:EX d:EX/0 a:0 v:0 r:3 m:20 p:1 gfs2: fsid=syz:syz.0: H: s:EX f:H e:0 p:4332 [syz-executor] gfs2_quota_sync+0x2cc/0x4e8 fs/gfs2/quota.c:1329 gfs2: fsid=syz:syz.0: I: n:11/2339 t:0 f:0x00 d:0x00000000 s:0 p:0 gfs2: fsid=syz:syz.0: about to withdraw this file system gfs2: fsid=syz:syz.0: Journal recovery skipped for jid 0 until next mount. gfs2: fsid=syz:syz.0: Glock dequeues delayed: 0 gfs2: fsid=syz:syz.0: File system withdrawn CPU: 1 PID: 4332 Comm: syz-executor Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026 Call trace: dump_backtrace+0x1c4/0x1f0 arch/arm64/kernel/stacktrace.c:158 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 gfs2_withdraw+0x9f8/0x1244 fs/gfs2/util.c:357 gfs2_consist_inode_i+0xf8/0x114 fs/gfs2/util.c:459 gfs2_dinode_in fs/gfs2/glops.c:-1 [inline] gfs2_inode_refresh+0x9a0/0xe64 fs/gfs2/glops.c:496 inode_go_instantiate+0x4c/0x68 fs/gfs2/glops.c:515 gfs2_instantiate+0x178/0x2b4 fs/gfs2/glock.c:547 gfs2_glock_holder_ready fs/gfs2/glock.c:1360 [inline] gfs2_glock_wait+0x1b0/0x290 fs/gfs2/glock.c:1380 gfs2_glock_nq+0x8bc/0x11c4 fs/gfs2/glock.c:1623 gfs2_glock_nq_init fs/gfs2/glock.h:255 [inline] do_sync+0x414/0xa68 fs/gfs2/quota.c:927 gfs2_quota_sync+0x2cc/0x4e8 fs/gfs2/quota.c:1329 gfs2_sync_fs+0x50/0xc8 fs/gfs2/super.c:663 sync_filesystem+0xe8/0x218 fs/sync.c:56 generic_shutdown_super+0x74/0x32c fs/super.c:474 kill_block_super+0x78/0xe0 fs/super.c:1481 gfs2_kill_sb+0xc4/0xd8 fs/gfs2/ops_fstype.c:-1 deactivate_locked_super+0xb4/0x128 fs/super.c:332 deactivate_super+0xe4/0x104 fs/super.c:363 cleanup_mnt+0x3a8/0x430 fs/namespace.c:1191 __cleanup_mnt+0x20/0x30 fs/namespace.c:1198 task_work_run+0x1f4/0x280 kernel/task_work.c:203 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] do_notify_resume+0x20f8/0x2c84 arch/arm64/kernel/signal.c:1166 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline] el0_svc+0x9c/0x12c arch/arm64/kernel/entry-common.c:638 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:589 gfs2: fsid=syz:syz.0: warning: assertion "!qd->qd_change" failed at function = gfs2_quota_cleanup, file = fs/gfs2/quota.c, line = 1485 CPU: 1 PID: 4332 Comm: syz-executor Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026 Call trace: dump_backtrace+0x1c4/0x1f0 arch/arm64/kernel/stacktrace.c:158 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 gfs2_assert_warn_i+0x16c/0x26c fs/gfs2/util.c:418 gfs2_quota_cleanup+0x444/0x640 fs/gfs2/quota.c:1485 gfs2_put_super+0x1ec/0x73c fs/gfs2/super.c:607 generic_shutdown_super+0x138/0x32c fs/super.c:501 kill_block_super+0x78/0xe0 fs/super.c:1481 gfs2_kill_sb+0xc4/0xd8 fs/gfs2/ops_fstype.c:-1 deactivate_locked_super+0xb4/0x128 fs/super.c:332 deactivate_super+0xe4/0x104 fs/super.c:363 cleanup_mnt+0x3a8/0x430 fs/namespace.c:1191 __cleanup_mnt+0x20/0x30 fs/namespace.c:1198 task_work_run+0x1f4/0x280 kernel/task_work.c:203 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] do_notify_resume+0x20f8/0x2c84 arch/arm64/kernel/signal.c:1166 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline] el0_svc+0x9c/0x12c arch/arm64/kernel/entry-common.c:638 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:589