gfs2: fsid=syz:syz.0: first mount done, others may mount gfs2: fsid=syz:syz.0: found 1 quota changes ------------[ cut here ]------------ WARNING: CPU: 1 PID: 3636 at include/linux/backing-dev.h:246 folio_account_dirtied mm/page-writeback.c:2565 [inline] WARNING: CPU: 1 PID: 3636 at include/linux/backing-dev.h:246 __folio_mark_dirty+0x924/0x1140 mm/page-writeback.c:2616 Modules linked in: CPU: 1 PID: 3636 Comm: syz-executor126 Not tainted 6.1.21-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 RIP: 0010:inode_to_wb include/linux/backing-dev.h:243 [inline] RIP: 0010:folio_account_dirtied mm/page-writeback.c:2565 [inline] RIP: 0010:__folio_mark_dirty+0x924/0x1140 mm/page-writeback.c:2616 Code: e9 90 f8 ff ff e8 6c 95 d0 ff 0f 0b e9 e3 f8 ff ff e8 60 95 d0 ff 4c 89 f7 48 8b 74 24 20 e8 c3 c7 2d 00 eb 9f e8 4c 95 d0 ff <0f> 0b e9 36 fb ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c f8 f8 ff RSP: 0018:ffffc90003bff618 EFLAGS: 00010093 RAX: ffffffff81b8f294 RBX: 0000000000000000 RCX: ffff888020299d40 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff888140d72878 R08: ffffffff81b8edc4 R09: ffffed10281ae510 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001 R13: ffff888140d72700 R14: ffffea0001f16740 R15: 1ffff110281ae50f FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fee1a4e9140 CR3: 000000000cc8e000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __set_page_dirty include/linux/pagemap.h:1053 [inline] mark_buffer_dirty+0x34f/0x7d0 fs/buffer.c:1105 gfs2_unpin+0x129/0xa60 fs/gfs2/lops.c:111 buf_lo_after_commit+0x14b/0x1a0 fs/gfs2/lops.c:747 lops_after_commit fs/gfs2/lops.h:49 [inline] gfs2_log_flush+0x1151/0x2610 fs/gfs2/log.c:1116 do_sync+0xa2c/0xc70 fs/gfs2/quota.c:975 gfs2_quota_sync+0x379/0x810 fs/gfs2/quota.c:1318 gfs2_sync_fs+0x49/0xb0 fs/gfs2/super.c:648 sync_filesystem+0xe8/0x220 fs/sync.c:56 generic_shutdown_super+0x6b/0x340 fs/super.c:474 kill_block_super+0x7a/0xe0 fs/super.c:1441 deactivate_locked_super+0xa0/0x110 fs/super.c:332 cleanup_mnt+0x490/0x520 fs/namespace.c:1186 task_work_run+0x246/0x300 kernel/task_work.c:179 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0x6fb/0x2300 kernel/exit.c:869 do_group_exit+0x202/0x2b0 kernel/exit.c:1019 __do_sys_exit_group kernel/exit.c:1030 [inline] __se_sys_exit_group kernel/exit.c:1028 [inline] __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1028 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fee1a4629a9 Code: Unable to access opcode bytes at 0x7fee1a46297f. RSP: 002b:00007ffed5fee958 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007fee1a4eb330 RCX: 00007fee1a4629a9 RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 0000000000013523 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fee1a4eb330 R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001