gfs2: fsid=syz:syz.0: new: gfs2_quota_sync+0x3cc/0x590 fs/gfs2/quota.c:1370 gfs2: fsid=syz:syz.0: pid: 5062 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:5062 [syz-executor250] gfs2_quota_sync+0x3cc/0x590 fs/gfs2/quota.c:1370 ------------[ cut here ]------------ kernel BUG at fs/gfs2/glock.c:1560! invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 1 PID: 5062 Comm: syz-executor250 Not tainted 6.8.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 RIP: 0010:add_to_queue fs/gfs2/glock.c:1560 [inline] RIP: 0010:gfs2_glock_nq+0x174b/0x1ab0 fs/gfs2/glock.c:1604 Code: fe 0f b7 0b 48 c7 c7 60 61 ed 8b 48 8b 74 24 20 44 89 f2 e8 27 73 8c 07 31 ff 48 8b 74 24 08 ba 01 00 00 00 e8 d6 61 ff ff 90 <0f> 0b 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 3e f8 ff ff 48 89 df e8 RSP: 0018:ffffc900041c7938 EFLAGS: 00010246 RAX: 33323f3bc9181400 RBX: ffff888024fdaf5a RCX: ffff888072e25940 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff83ce7fd7 R09: 1ffffffff1f0879d R10: dffffc0000000000 R11: fffffbfff1f0879e R12: ffff888024fdaf22 R13: 1ffff110049fb5e3 R14: 0000000000000008 R15: ffff888024fdaf18 FS: 0000555555b12380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fcab5dff000 CR3: 000000007ddbe000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: gfs2_glock_nq_init fs/gfs2/glock.h:238 [inline] do_sync+0x3cc/0xec0 fs/gfs2/quota.c:946 gfs2_quota_sync+0x3cc/0x590 fs/gfs2/quota.c:1370 gfs2_sync_fs+0x4d/0xc0 fs/gfs2/super.c:669 sync_filesystem+0xed/0x230 fs/sync.c:56 gfs2_reconfigure+0xbc/0xbb0 fs/gfs2/ops_fstype.c:1561 reconfigure_super+0x445/0x880 fs/super.c:1071 do_remount fs/namespace.c:2892 [inline] path_mount+0xc28/0xfa0 fs/namespace.c:3671 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3875 do_syscall_64+0xf9/0x240 entry_SYSCALL_64_after_hwframe+0x6f/0x77 RIP: 0033:0x7fcabd38d9e9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 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:00007ffe20c9e708 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007fcabd38d9e9 RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000000 RBP: 0000000000013278 R08: 0000000000000000 R09: 0000555555b134c0 R10: 00000000000800b0 R11: 0000000000000246 R12: 00007ffe20c9e730 R13: 00007ffe20c9e71c R14: 431bde82d7b634db R15: 00007fcabd3d603b Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:add_to_queue fs/gfs2/glock.c:1560 [inline] RIP: 0010:gfs2_glock_nq+0x174b/0x1ab0 fs/gfs2/glock.c:1604 Code: fe 0f b7 0b 48 c7 c7 60 61 ed 8b 48 8b 74 24 20 44 89 f2 e8 27 73 8c 07 31 ff 48 8b 74 24 08 ba 01 00 00 00 e8 d6 61 ff ff 90 <0f> 0b 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 3e f8 ff ff 48 89 df e8 RSP: 0018:ffffc900041c7938 EFLAGS: 00010246 RAX: 33323f3bc9181400 RBX: ffff888024fdaf5a RCX: ffff888072e25940 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff83ce7fd7 R09: 1ffffffff1f0879d R10: dffffc0000000000 R11: fffffbfff1f0879e R12: ffff888024fdaf22 R13: 1ffff110049fb5e3 R14: 0000000000000008 R15: ffff888024fdaf18 FS: 0000555555b12380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fcab5dff000 CR3: 000000007ddbe000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400