gfs2: fsid=syz:syz.0: new: gfs2_quota_sync+0x37d/0x820 fs/gfs2/quota.c:1318 gfs2: fsid=syz:syz.0: pid: 5079 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:5079 [syz-executor650] gfs2_quota_sync+0x37d/0x820 fs/gfs2/quota.c:1318 ------------[ cut here ]------------ kernel BUG at fs/gfs2/glock.c:1551! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 5079 Comm: syz-executor650 Not tainted 6.3.0-rc2-syzkaller-00069-g0ddc84d2dd43 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 RIP: 0010:add_to_queue fs/gfs2/glock.c:1551 [inline] RIP: 0010:gfs2_glock_nq+0x1420/0x16c0 fs/gfs2/glock.c:1576 Code: 52 2e fe 0f b7 4d 00 48 c7 c7 40 60 2c 8b 48 8b 74 24 28 89 da e8 40 61 ec 06 31 ff 48 8b 34 24 ba 01 00 00 00 e8 e0 69 ff ff <0f> 0b 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 9e f5 ff ff 48 89 df e8 RSP: 0018:ffffc90003ddf850 EFLAGS: 00010246 RAX: dc1d9656f47c6200 RBX: 0000000000000008 RCX: ffff888021461d40 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffff88801d18285a R08: ffffffff83b14cc5 R09: fffffbfff1ca6ea6 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888076e6d340 R13: ffff88801d182818 R14: ffff88801d182830 R15: ffff888022354000 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f91668bd140 CR3: 0000000025a58000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> gfs2_glock_nq_init fs/gfs2/glock.h:261 [inline] do_sync+0x3c6/0xc70 fs/gfs2/quota.c:910 gfs2_quota_sync+0x37d/0x820 fs/gfs2/quota.c:1318 gfs2_sync_fs+0x4d/0xb0 fs/gfs2/super.c:656 sync_filesystem+0xec/0x220 fs/sync.c:56 generic_shutdown_super+0x6f/0x340 fs/super.c:473 kill_block_super+0x7e/0xe0 fs/super.c:1398 deactivate_locked_super+0xa4/0x110 fs/super.c:331 cleanup_mnt+0x426/0x4c0 fs/namespace.c:1177 task_work_run+0x24a/0x300 kernel/task_work.c:179 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0x68f/0x2290 kernel/exit.c:869 do_group_exit+0x206/0x2c0 kernel/exit.c:1019 __do_sys_exit_group kernel/exit.c:1030 [inline] __se_sys_exit_group kernel/exit.c:1028 [inline] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1028 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f9166836999 Code: Unable to access opcode bytes at 0x7f916683696f. RSP: 002b:00007ffe86f03f48 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007f91668bf330 RCX: 00007f9166836999 RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00000000000134ba R10: 0000000000000000 R11: 0000000000000246 R12: 00007f91668bf330 R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:add_to_queue fs/gfs2/glock.c:1551 [inline] RIP: 0010:gfs2_glock_nq+0x1420/0x16c0 fs/gfs2/glock.c:1576 Code: 52 2e fe 0f b7 4d 00 48 c7 c7 40 60 2c 8b 48 8b 74 24 28 89 da e8 40 61 ec 06 31 ff 48 8b 34 24 ba 01 00 00 00 e8 e0 69 ff ff <0f> 0b 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 9e f5 ff ff 48 89 df e8 RSP: 0018:ffffc90003ddf850 EFLAGS: 00010246 RAX: dc1d9656f47c6200 RBX: 0000000000000008 RCX: ffff888021461d40 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffff88801d18285a R08: ffffffff83b14cc5 R09: fffffbfff1ca6ea6 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888076e6d340 R13: ffff88801d182818 R14: ffff88801d182830 R15: ffff888022354000 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f91668bd140 CR3: 0000000025a58000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400