------------[ cut here ]------------ WARNING: CPU: 1 PID: 5165 at include/linux/backing-dev.h:251 inode_to_wb include/linux/backing-dev.h:251 [inline] WARNING: CPU: 1 PID: 5165 at include/linux/backing-dev.h:251 folio_account_dirtied mm/page-writeback.c:2694 [inline] WARNING: CPU: 1 PID: 5165 at include/linux/backing-dev.h:251 __folio_mark_dirty+0xa55/0xe00 mm/page-writeback.c:2748 Modules linked in: CPU: 1 PID: 5165 Comm: syz-executor Not tainted 6.10.0-rc5-syzkaller-00018-g55027e689933 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:inode_to_wb include/linux/backing-dev.h:251 [inline] RIP: 0010:folio_account_dirtied mm/page-writeback.c:2694 [inline] RIP: 0010:__folio_mark_dirty+0xa55/0xe00 mm/page-writeback.c:2748 Code: ff ff 48 8d 78 70 e8 aa 1d 17 09 31 ff 89 c6 89 44 24 08 e8 0d b9 c9 ff 8b 44 24 08 85 c0 0f 85 49 fa ff ff e8 fc bd c9 ff 90 <0f> 0b 90 e9 3b fa ff ff e8 ee bd c9 ff 90 0f 0b 90 e9 5c f6 ff ff RSP: 0018:ffffc900037b7b18 EFLAGS: 00010093 RAX: 0000000000000000 RBX: ffffea0000542280 RCX: ffffffff81c4d053 RDX: ffff88802059c880 RSI: ffffffff81c4d064 RDI: 0000000000000005 RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000003 R12: ffff88802b2782a8 R13: ffff888017b59f00 R14: ffff888017b59d58 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff88802c100000(0063) knlGS:00000000568f9440 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 000000005690699c CR3: 000000004ee02000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: mark_buffer_dirty+0x368/0x440 fs/buffer.c:1207 gfs2_unpin+0x103/0xc30 fs/gfs2/lops.c:111 buf_lo_after_commit+0x141/0x210 fs/gfs2/lops.c:738 lops_after_commit fs/gfs2/lops.h:51 [inline] gfs2_log_flush+0xcb1/0x29a0 fs/gfs2/log.c:1123 gfs2_kill_sb+0x60/0x410 fs/gfs2/ops_fstype.c:1767 deactivate_locked_super+0xbe/0x1a0 fs/super.c:473 deactivate_super+0xde/0x100 fs/super.c:506 cleanup_mnt+0x222/0x450 fs/namespace.c:1267 task_work_run+0x14e/0x250 kernel/task_work.c:180 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop kernel/entry/common.c:114 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x278/0x2a0 kernel/entry/common.c:218 __do_fast_syscall_32+0x80/0x120 arch/x86/entry/common.c:389 do_fast_syscall_32+0x32/0x80 arch/x86/entry/common.c:411 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf7480579 Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000ffbf4b48 EFLAGS: 00000292 ORIG_RAX: 0000000000000034 RAX: 0000000000000000 RBX: 00000000ffbf4bf0 RCX: 0000000000000009 RDX: 00000000f746cff4 RSI: 00000000f736a35a RDI: 00000000ffbf5c84 RBP: 00000000ffbf4bf0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000292 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: 10 06 adc %al,(%rsi) 2: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi 6: 10 07 adc %al,(%rdi) 8: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi c: 10 08 adc %cl,(%rax) e: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi 1e: 00 51 52 add %dl,0x52(%rcx) 21: 55 push %rbp 22: 89 e5 mov %esp,%ebp 24: 0f 34 sysenter 26: cd 80 int $0x80 * 28: 5d pop %rbp <-- trapping instruction 29: 5a pop %rdx 2a: 59 pop %rcx 2b: c3 ret 2c: 90 nop 2d: 90 nop 2e: 90 nop 2f: 90 nop 30: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi 37: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi