syzbot

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:4163 [syz-executor944] gfs2_glock_nq_init fs/gfs2/glock.h:244 [inline]
gfs2: fsid=syz:syz.0:  H: s:EX f:cH e:0 p:4163 [syz-executor944] do_sync+0x3ab/0xc60 fs/gfs2/quota.c:921
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kernel BUG at fs/gfs2/glock.c:1503!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 4163 Comm: syz-executor944 Not tainted 5.15.180-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:add_to_queue fs/gfs2/glock.c:1503 [inline]
RIP: 0010:gfs2_glock_nq+0x10c7/0x15e0 fs/gfs2/glock.c:1527
Code: ef e8 2d c8 34 fe 0f b7 4d 00 48 c7 c7 80 a3 ed 8a 4c 89 e6 89 da e8 98 29 a9 06 31 ff 4c 89 f6 ba 01 00 00 00 e8 d9 86 ff ff <0f> 0b e8 92 d4 ea fd e8 4d c3 6a fd e9 0f f9 ff ff 48 8d 5a 08 48
RSP: 0018:ffffc900030af918 EFLAGS: 00010246
RAX: 26788526d9a87000 RBX: 0000000000000008 RCX: ffff88802780bb80
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffff88802229c45a R08: ffffffff83956549 R09: fffffbfff1c154de
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880254612c0
R13: dffffc0000000000 R14: ffff88806ed252c0 R15: ffff88802229c422
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005596a3bd44b8 CR3: 000000007d2e9000 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+0x6b/0x310 fs/super.c:448
 kill_block_super+0x7a/0xe0 fs/super.c:1427
 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:188
 exit_task_work include/linux/task_work.h:33 [inline]
 do_exit+0x6a3/0x2480 kernel/exit.c:874
 do_group_exit+0x144/0x310 kernel/exit.c:996
 __do_sys_exit_group kernel/exit.c:1007 [inline]
 __se_sys_exit_group kernel/exit.c:1005 [inline]
 __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1005
 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: 0033:0x7f0b22701ac9
Code: Unable to access opcode bytes at RIP 0x7f0b22701a9f.
RSP: 002b:00007fffbca25178 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f0b22701ac9
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
RBP: 00007f0b227902b0 R08: ffffffffffffffb8 R09: 000000000001268c
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f0b227902b0
R13: 0000000000000000 R14: 00007f0b22791020 R15: 00007f0b226d0010
 </TASK>
Modules linked in:
---[ end trace 1ab1e90415ffc6d1 ]---
RIP: 0010:add_to_queue fs/gfs2/glock.c:1503 [inline]
RIP: 0010:gfs2_glock_nq+0x10c7/0x15e0 fs/gfs2/glock.c:1527
Code: ef e8 2d c8 34 fe 0f b7 4d 00 48 c7 c7 80 a3 ed 8a 4c 89 e6 89 da e8 98 29 a9 06 31 ff 4c 89 f6 ba 01 00 00 00 e8 d9 86 ff ff <0f> 0b e8 92 d4 ea fd e8 4d c3 6a fd e9 0f f9 ff ff 48 8d 5a 08 48
RSP: 0018:ffffc900030af918 EFLAGS: 00010246
RAX: 26788526d9a87000 RBX: 0000000000000008 RCX: ffff88802780bb80
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffff88802229c45a R08: ffffffff83956549 R09: fffffbfff1c154de
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880254612c0
R13: dffffc0000000000 R14: ffff88806ed252c0 R15: ffff88802229c422
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005596a3bd44b8 CR3: 000000007d2e9000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400