gfs2: fsid=syz:syz.0: new: gfs2_quota_sync+0x3cc/0x590 fs/gfs2/quota.c:1370 gfs2: fsid=syz:syz.0: pid: 5051 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:5051 [syz-executor414] 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: 0 PID: 5051 Comm: syz-executor414 Not tainted 6.8.0-rc5-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 e0 60 ed 8b 48 8b 74 24 20 44 89 f2 e8 a7 03 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:ffffc9000426f8d8 EFLAGS: 00010246 RAX: ae3a836c71a1b100 RBX: ffff8880241c805a RCX: ffff88802a749dc0 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff83ce6f57 R09: 1ffffffff1f0873d R10: dffffc0000000000 R11: fffffbfff1f0873e R12: ffff8880241c8022 R13: 1ffff11004839003 R14: 0000000000000008 R15: ffff8880241c8018 FS: 000055555669e380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555566a76f8 CR3: 000000002d750000 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 generic_shutdown_super+0x72/0x2d0 fs/super.c:625 kill_block_super+0x44/0x90 fs/super.c:1680 deactivate_locked_super+0xc4/0x130 fs/super.c:477 cleanup_mnt+0x426/0x4c0 fs/namespace.c:1267 task_work_run+0x24e/0x310 kernel/task_work.c:180 ptrace_notify+0x2d1/0x380 kernel/signal.c:2390 ptrace_report_syscall include/linux/ptrace.h:415 [inline] ptrace_report_syscall_exit include/linux/ptrace.h:477 [inline] syscall_exit_work+0xbb/0x170 kernel/entry/common.c:167 syscall_exit_to_user_mode_prepare kernel/entry/common.c:194 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:199 [inline] syscall_exit_to_user_mode+0x27f/0x370 kernel/entry/common.c:212 do_syscall_64+0x108/0x240 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x6f/0x77 RIP: 0033:0x7f834b32e307 Code: 08 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffd57f93098 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f834b32e307 RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007ffd57f93150 RBP: 00007ffd57f93150 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000202 R12: 00007ffd57f941b0 R13: 000055555669f6c0 R14: 0000000000000001 R15: 431bde82d7b634db 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 e0 60 ed 8b 48 8b 74 24 20 44 89 f2 e8 a7 03 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:ffffc9000426f8d8 EFLAGS: 00010246 RAX: ae3a836c71a1b100 RBX: ffff8880241c805a RCX: ffff88802a749dc0 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff83ce6f57 R09: 1ffffffff1f0873d R10: dffffc0000000000 R11: fffffbfff1f0873e R12: ffff8880241c8022 R13: 1ffff11004839003 R14: 0000000000000008 R15: ffff8880241c8018 FS: 000055555669e380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555566a76f8 CR3: 000000002d750000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400