gfs2: pid: 8100 gfs2: lock type: 8 req lock state : 1 gfs2: G: s:EX n:8/1 f:qb t:EX d:EX/0 a:0 v:0 r:5 m:20 gfs2: H: s:EX f:cH e:0 p:8100 [gfs2_quotad] gfs2_glock_nq_init fs/gfs2/glock.h:226 [inline] gfs2: H: s:EX f:cH e:0 p:8100 [gfs2_quotad] do_sync+0x442/0xc90 fs/gfs2/quota.c:896 ------------[ cut here ]------------ kernel BUG at fs/gfs2/glock.c:1082! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 8100 Comm: gfs2_quotad Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0010:add_to_queue fs/gfs2/glock.c:1082 [inline] RIP: 0010:gfs2_glock_nq.cold+0x276/0x2cd fs/gfs2/glock.c:1107 Code: 0f b6 04 02 84 c0 74 04 3c 03 7e 6e 8b 73 18 44 89 ea 48 c7 c7 60 4f a6 88 e8 02 57 f8 ff 48 8b 74 24 08 31 ff e8 0b cc 0a fb <0f> 0b e8 74 02 9d f9 4c 8b 04 24 e9 aa fd ff ff 31 ed e9 12 fe ff RSP: 0000:ffff8880b142fb30 EFLAGS: 00010282 RAX: 0000000000000000 RBX: ffff88809f3e0cf8 RCX: ffffffff83063ba3 RDX: 0000000000000000 RSI: ffffffff83063bf2 RDI: ffffffff88a67230 RBP: 0000000000001fa4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffff8880a3dde278 R13: 0000000000000001 R14: 0000000000000000 R15: ffff8880a8445c00 FS: 0000000000000000(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f25da088000 CR3: 0000000099067000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: gfs2_glock_nq_init fs/gfs2/glock.h:228 [inline] do_sync+0x44a/0xc90 fs/gfs2/quota.c:896 gfs2_quota_sync+0x5d1/0x780 fs/gfs2/quota.c:1303 quotad_check_timeo fs/gfs2/quota.c:1493 [inline] quotad_check_timeo fs/gfs2/quota.c:1487 [inline] gfs2_quotad+0x2a9/0x930 fs/gfs2/quota.c:1558 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Modules linked in: ---[ end trace 9a1e6f5018ca76d2 ]--- RIP: 0010:add_to_queue fs/gfs2/glock.c:1082 [inline] RIP: 0010:gfs2_glock_nq.cold+0x276/0x2cd fs/gfs2/glock.c:1107 Code: 0f b6 04 02 84 c0 74 04 3c 03 7e 6e 8b 73 18 44 89 ea 48 c7 c7 60 4f a6 88 e8 02 57 f8 ff 48 8b 74 24 08 31 ff e8 0b cc 0a fb <0f> 0b e8 74 02 9d f9 4c 8b 04 24 e9 aa fd ff ff 31 ed e9 12 fe ff RSP: 0000:ffff8880b142fb30 EFLAGS: 00010282 RAX: 0000000000000000 RBX: ffff88809f3e0cf8 RCX: ffffffff83063ba3 RDX: 0000000000000000 RSI: ffffffff83063bf2 RDI: ffffffff88a67230 RBP: 0000000000001fa4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffff8880a3dde278 R13: 0000000000000001 R14: 0000000000000000 R15: ffff8880a8445c00 FS: 0000000000000000(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f25da088000 CR3: 0000000009e6d000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400