gfs2: fsid=syz:syz.0: new: gfs2_quota_sync+0x379/0x810 fs/gfs2/quota.c:1329 gfs2: fsid=syz:syz.0: pid: 3564 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:3564 [syz-executor.2] gfs2_quota_sync+0x379/0x810 fs/gfs2/quota.c:1329 ------------[ cut here ]------------ kernel BUG at fs/gfs2/glock.c:1562! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 3564 Comm: syz-executor.2 Not tainted 6.1.87-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:1562 [inline] RIP: 0010:gfs2_glock_nq+0x166f/0x18a0 fs/gfs2/glock.c:1587 Code: 2c fe 0f b7 4d 00 48 c7 c7 00 90 30 8b 48 8b 74 24 20 89 da e8 32 f5 d2 06 31 ff 48 8b 74 24 28 ba 01 00 00 00 e8 e1 72 ff ff <0f> 0b 89 d9 80 e1 07 fe c1 38 c1 0f 8c 8c ee ff ff 48 89 df e8 d8 RSP: 0018:ffffc900041cf9b8 EFLAGS: 00010246 RAX: c92dbb51af88ec00 RBX: 0000000000000008 RCX: 1ffff92000839ee8 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffff88805ed7215a R08: ffffffff83b51a60 R09: fffffbfff1ce6eee R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888070389660 R13: ffff88805ed72138 R14: ffff88805ed72130 R15: 1ffff1100bdae423 FS: 0000555556979480(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000564741e8a680 CR3: 000000005cf28000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: gfs2_glock_nq_init fs/gfs2/glock.h:264 [inline] do_sync+0x3c2/0xc70 fs/gfs2/quota.c:921 gfs2_quota_sync+0x379/0x810 fs/gfs2/quota.c:1329 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:1459 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 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0xde/0x100 kernel/entry/common.c:177 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline] syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:303 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:87 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7fd8c8a7f1d7 Code: b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 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 00 f0 ff ff 77 01 c3 48 c7 c2 b0 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffda8d272f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fd8c8a7f1d7 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffda8d273b0 RBP: 00007ffda8d273b0 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffda8d28470 R13: 00007fd8c8ac93b9 R14: 0000000000034684 R15: 0000000000000026 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:add_to_queue fs/gfs2/glock.c:1562 [inline] RIP: 0010:gfs2_glock_nq+0x166f/0x18a0 fs/gfs2/glock.c:1587 Code: 2c fe 0f b7 4d 00 48 c7 c7 00 90 30 8b 48 8b 74 24 20 89 da e8 32 f5 d2 06 31 ff 48 8b 74 24 28 ba 01 00 00 00 e8 e1 72 ff ff <0f> 0b 89 d9 80 e1 07 fe c1 38 c1 0f 8c 8c ee ff ff 48 89 df e8 d8 RSP: 0018:ffffc900041cf9b8 EFLAGS: 00010246 RAX: c92dbb51af88ec00 RBX: 0000000000000008 RCX: 1ffff92000839ee8 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffff88805ed7215a R08: ffffffff83b51a60 R09: fffffbfff1ce6eee R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888070389660 R13: ffff88805ed72138 R14: ffff88805ed72130 R15: 1ffff1100bdae423 FS: 0000555556979480(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000564741e8a680 CR3: 000000005cf28000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400