syzbot

gfs2: fsid=syz:syz.0: pid: 3500
gfs2: fsid=syz:syz.0: lock type: 8 req lock state : 1
gfs2: fsid=syz:syz.0: new: gfs2_glock_nq_init fs/gfs2/glock.h:244 [inline]
gfs2: fsid=syz:syz.0: new: do_sync+0x3ab/0xc60 fs/gfs2/quota.c:921
gfs2: fsid=syz:syz.0: pid: 3500
gfs2: fsid=syz:syz.0: lock type: 8 req lock state : 1
gfs2: fsid=syz:syz.0: G:  s:EX n:8/1 f:qb t:EX d:EX/0 a:0 v:0 r:5 m:20 p:0
gfs2: fsid=syz:syz.0:  H: s:EX f:cH e:0 p:3500 [syz-executor245] gfs2_glock_nq_init fs/gfs2/glock.h:244 [inline]
gfs2: fsid=syz:syz.0:  H: s:EX f:cH e:0 p:3500 [syz-executor245] do_sync+0x3ab/0xc60 fs/gfs2/quota.c:921
------------[ cut here ]------------
kernel BUG at fs/gfs2/glock.c:1501!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 3500 Comm: syz-executor245 Not tainted 5.15.156-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:add_to_queue fs/gfs2/glock.c:1501 [inline]
RIP: 0010:gfs2_glock_nq+0x10c7/0x15e0 fs/gfs2/glock.c:1525
Code: ef e8 6d ab 3f fe 0f b7 4d 00 48 c7 c7 60 98 cc 8a 4c 89 e6 89 da e8 a8 fc 91 06 31 ff 4c 89 f6 ba 01 00 00 00 e8 29 87 ff ff <0f> 0b e8 a2 e6 f5 fd e8 fd 17 76 fd e9 0f f9 ff ff 48 8d 5a 08 48
RSP: 0018:ffffc900011df918 EFLAGS: 00010246
RAX: 26991ee02edc8e00 RBX: 0000000000000008 RCX: ffff88807be5d940
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffff88807e3e6a5a R08: ffffffff838a1289 R09: fffffbfff1bc8b5e
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888078cd92c0
R13: dffffc0000000000 R14: ffff888073b6c960 R15: ffff88807e3e6a22
FS:  0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5405a1e130 CR3: 0000000023416000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 gfs2_glock_nq_init fs/gfs2/glock.h:246 [inline]
 do_sync+0x3b3/0xc60 fs/gfs2/quota.c:921
 gfs2_quota_sync+0x379/0x810 fs/gfs2/quota.c:1329
 gfs2_sync_fs+0x49/0xb0 fs/gfs2/super.c:647
 sync_filesystem+0xe8/0x220 fs/sync.c:56
 generic_shutdown_super+0x6e/0x2c0 fs/super.c:448
 kill_block_super+0x7a/0xe0 fs/super.c:1414
 deactivate_locked_super+0xa0/0x110 fs/super.c:335
 cleanup_mnt+0x44e/0x500 fs/namespace.c:1143
 task_work_run+0x129/0x1a0 kernel/task_work.c:164
 exit_task_work include/linux/task_work.h:32 [inline]
 do_exit+0x6a3/0x2480 kernel/exit.c:872
 do_group_exit+0x144/0x310 kernel/exit.c:994
 __do_sys_exit_group kernel/exit.c:1005 [inline]
 __se_sys_exit_group kernel/exit.c:1003 [inline]
 __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1003
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f5405991749
Code: Unable to access opcode bytes at RIP 0x7f540599171f.
RSP: 002b:00007ffcc5348c68 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f5405991749
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
RBP: 00007f5405a202b0 R08: ffffffffffffffb8 R09: 00007ffcc5348d40
R10: 00000000000800b0 R11: 0000000000000246 R12: 00007f5405a202b0
R13: 0000000000000000 R14: 00007f5405a21020 R15: 00007f540595fca0
 </TASK>
Modules linked in:
---[ end trace 54b7356e486c9806 ]---
RIP: 0010:add_to_queue fs/gfs2/glock.c:1501 [inline]
RIP: 0010:gfs2_glock_nq+0x10c7/0x15e0 fs/gfs2/glock.c:1525
Code: ef e8 6d ab 3f fe 0f b7 4d 00 48 c7 c7 60 98 cc 8a 4c 89 e6 89 da e8 a8 fc 91 06 31 ff 4c 89 f6 ba 01 00 00 00 e8 29 87 ff ff <0f> 0b e8 a2 e6 f5 fd e8 fd 17 76 fd e9 0f f9 ff ff 48 8d 5a 08 48
RSP: 0018:ffffc900011df918 EFLAGS: 00010246
RAX: 26991ee02edc8e00 RBX: 0000000000000008 RCX: ffff88807be5d940
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffff88807e3e6a5a R08: ffffffff838a1289 R09: fffffbfff1bc8b5e
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888078cd92c0
R13: dffffc0000000000 R14: ffff888073b6c960 R15: ffff88807e3e6a22
FS:  0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5405a1e130 CR3: 0000000023416000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400