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:910 gfs2: fsid=syz:syz.0: pid: 3620 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:3620 [syz-executor.5] gfs2_glock_nq_init fs/gfs2/glock.h:244 [inline] gfs2: fsid=syz:syz.0: H: s:EX f:cH e:0 p:3620 [syz-executor.5] do_sync+0x3ab/0xc60 fs/gfs2/quota.c:910 ------------[ cut here ]------------ kernel BUG at fs/gfs2/glock.c:1501! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 3620 Comm: syz-executor.5 Not tainted 5.15.106-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023 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 0d 7b 41 fe 0f b7 4d 00 48 c7 c7 e0 f7 cb 8a 4c 89 e6 89 da e8 41 3b 8e 06 31 ff 4c 89 f6 ba 01 00 00 00 e8 29 87 ff ff <0f> 0b e8 22 33 f8 fd e8 4d ff 78 fd e9 0f f9 ff ff 48 8d 5a 08 48 RSP: 0018:ffffc90002d6fa58 EFLAGS: 00010246 RAX: 9274dfde2805d500 RBX: 0000000000000008 RCX: ffff888078409d00 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffff888029345e5a R08: ffffffff838723d9 R09: fffffbfff1bc635e R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880949f52c0 R13: dffffc0000000000 R14: ffff888081c6abc0 R15: ffff888029345e22 FS: 000055555576a400(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000040 CR3: 0000000032169000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: gfs2_glock_nq_init fs/gfs2/glock.h:246 [inline] do_sync+0x3b3/0xc60 fs/gfs2/quota.c:910 gfs2_quota_sync+0x379/0x810 fs/gfs2/quota.c:1318 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:1405 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 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop+0x106/0x130 kernel/entry/common.c:175 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:208 __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline] syscall_exit_to_user_mode+0x5d/0x250 kernel/entry/common.c:301 do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7fdbbddd95d7 Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffcae3d5268 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fdbbddd95d7 RDX: 00007ffcae3d533c RSI: 000000000000000a RDI: 00007ffcae3d5330 RBP: 00007ffcae3d5330 R08: 00000000ffffffff R09: 00007ffcae3d5100 R10: 000055555576b8b3 R11: 0000000000000246 R12: 00007fdbbde32cdc R13: 00007ffcae3d63f0 R14: 000055555576b810 R15: 00007ffcae3d6430 Modules linked in: ---[ end trace 4860cace727bc30e ]--- 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 0d 7b 41 fe 0f b7 4d 00 48 c7 c7 e0 f7 cb 8a 4c 89 e6 89 da e8 41 3b 8e 06 31 ff 4c 89 f6 ba 01 00 00 00 e8 29 87 ff ff <0f> 0b e8 22 33 f8 fd e8 4d ff 78 fd e9 0f f9 ff ff 48 8d 5a 08 48 RSP: 0018:ffffc90002d6fa58 EFLAGS: 00010246 RAX: 9274dfde2805d500 RBX: 0000000000000008 RCX: ffff888078409d00 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffff888029345e5a R08: ffffffff838723d9 R09: fffffbfff1bc635e R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880949f52c0 R13: dffffc0000000000 R14: ffff888081c6abc0 R15: ffff888029345e22 FS: 000055555576a400(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000040 CR3: 0000000032169000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400