gfs2: fsid=loop1.0: new: gfs2_quota_sync+0x3c8/0x590 fs/gfs2/quota.c:1370 gfs2: fsid=loop1.0: pid: 5081 gfs2: fsid=loop1.0: lock type: 8 req lock state : 1 gfs2: fsid=loop1.0: 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=loop1.0: H: s:EX f:cH e:0 p:5081 [syz-executor.1] gfs2_quota_sync+0x3c8/0x590 fs/gfs2/quota.c:1370 ------------[ cut here ]------------ kernel BUG at fs/gfs2/glock.c:1560! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 5081 Comm: syz-executor.1 Not tainted 6.7.0-syzkaller-09928-g052d534373b7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 RIP: 0010:add_to_queue fs/gfs2/glock.c:1560 [inline] RIP: 0010:gfs2_glock_nq+0x1747/0x1ab0 fs/gfs2/glock.c:1604 Code: fe 0f b7 0b 48 c7 c7 c0 2a ae 8b 48 8b 74 24 20 44 89 f2 e8 fb d7 5a 07 31 ff 48 8b 74 24 08 ba 01 00 00 00 e8 ca 63 ff ff 90 <0f> 0b 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 42 f8 ff ff 48 89 df e8 RSP: 0000:ffffc9000464f9f8 EFLAGS: 00010246 RAX: b5465e66f331e700 RBX: ffff88807dac4f5a RCX: ffff88802813d940 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff83c56fd7 R09: 1ffffffff1e03e4d R10: dffffc0000000000 R11: fffffbfff1e03e4e R12: ffff88807dac4f22 R13: 1ffff1100fb589e3 R14: 0000000000000008 R15: ffff88807dac4f18 FS: 00005555567d3480(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f122e823000 CR3: 0000000035080000 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+0x3c8/0x590 fs/gfs2/quota.c:1370 gfs2_sync_fs+0x4d/0xb0 fs/gfs2/super.c:669 sync_filesystem+0xec/0x220 fs/sync.c:56 generic_shutdown_super+0x72/0x2c0 fs/super.c:625 kill_block_super+0x44/0x90 fs/super.c:1680 deactivate_locked_super+0xc1/0x130 fs/super.c:477 cleanup_mnt+0x426/0x4c0 fs/namespace.c:1267 task_work_run+0x24a/0x300 kernel/task_work.c:180 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop kernel/entry/common.c:108 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:201 [inline] syscall_exit_to_user_mode+0x167/0x370 kernel/entry/common.c:212 do_syscall_64+0x102/0x230 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7fa992c7e0d7 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:00007ffebabaf498 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fa992c7e0d7 RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007ffebabaf550 RBP: 00007ffebabaf550 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffebabb0610 R13: 00007fa992cc83b9 R14: 00000000000c04fb R15: 000000000000000b Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:add_to_queue fs/gfs2/glock.c:1560 [inline] RIP: 0010:gfs2_glock_nq+0x1747/0x1ab0 fs/gfs2/glock.c:1604 Code: fe 0f b7 0b 48 c7 c7 c0 2a ae 8b 48 8b 74 24 20 44 89 f2 e8 fb d7 5a 07 31 ff 48 8b 74 24 08 ba 01 00 00 00 e8 ca 63 ff ff 90 <0f> 0b 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 42 f8 ff ff 48 89 df e8 RSP: 0000:ffffc9000464f9f8 EFLAGS: 00010246 RAX: b5465e66f331e700 RBX: ffff88807dac4f5a RCX: ffff88802813d940 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff83c56fd7 R09: 1ffffffff1e03e4d R10: dffffc0000000000 R11: fffffbfff1e03e4e R12: ffff88807dac4f22 R13: 1ffff1100fb589e3 R14: 0000000000000008 R15: ffff88807dac4f18 FS: 00005555567d3480(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f122e823000 CR3: 0000000035080000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400