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: 3644 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:3644 [syz-executor.4] gfs2_glock_nq_init fs/gfs2/glock.h:244 [inline] gfs2: fsid=syz:syz.0: H: s:EX f:cH e:0 p:3644 [syz-executor.4] 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: 1 PID: 3644 Comm: syz-executor.4 Not tainted 5.15.107-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 fd 75 41 fe 0f b7 4d 00 48 c7 c7 e0 f8 cb 8a 4c 89 e6 89 da e8 21 47 8e 06 31 ff 4c 89 f6 ba 01 00 00 00 e8 29 87 ff ff <0f> 0b e8 02 1f f8 fd e8 2d eb 78 fd e9 0f f9 ff ff 48 8d 5a 08 48 RSP: 0018:ffffc90002e3fa58 EFLAGS: 00010246 RAX: 97e5df2daa3f1200 RBX: 0000000000000008 RCX: ffff888018db8000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffff888076fb195a R08: ffffffff838737f9 R09: fffffbfff1bc6396 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88807d1d52c0 R13: dffffc0000000000 R14: ffff888033690960 R15: ffff888076fb1922 FS: 0000555556bd5400(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c0061b5260 CR3: 000000002c7e2000 CR4: 00000000003506e0 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: 0033:0x7fd6553035d7 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:00007ffdfc0dcb08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fd6553035d7 RDX: 00007ffdfc0dcbdb RSI: 000000000000000a RDI: 00007ffdfc0dcbd0 RBP: 00007ffdfc0dcbd0 R08: 00000000ffffffff R09: 00007ffdfc0dc9a0 R10: 0000555556bd68b3 R11: 0000000000000246 R12: 00007fd65535ccdc R13: 00007ffdfc0ddc90 R14: 0000555556bd6810 R15: 00007ffdfc0ddcd0 Modules linked in: ---[ end trace dae8ed592a6d9917 ]--- 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 fd 75 41 fe 0f b7 4d 00 48 c7 c7 e0 f8 cb 8a 4c 89 e6 89 da e8 21 47 8e 06 31 ff 4c 89 f6 ba 01 00 00 00 e8 29 87 ff ff <0f> 0b e8 02 1f f8 fd e8 2d eb 78 fd e9 0f f9 ff ff 48 8d 5a 08 48 RSP: 0018:ffffc90002e3fa58 EFLAGS: 00010246 RAX: 97e5df2daa3f1200 RBX: 0000000000000008 RCX: ffff888018db8000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffff888076fb195a R08: ffffffff838737f9 R09: fffffbfff1bc6396 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88807d1d52c0 R13: dffffc0000000000 R14: ffff888033690960 R15: ffff888076fb1922 FS: 0000555556bd5400(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c0061b5260 CR3: 000000002c7e2000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400