gfs2: fsid=syz:syz.0: new: gfs2_quota_sync+0x419/0x630 fs/gfs2/quota.c:1370 gfs2: fsid=syz:syz.0: pid: 5106 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:5106 [syz-executor] gfs2_quota_sync+0x419/0x630 fs/gfs2/quota.c:1370 ------------[ cut here ]------------ kernel BUG at fs/gfs2/glock.c:1600! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 PID: 5106 Comm: syz-executor Not tainted 6.10.0-rc6-syzkaller-00069-g795c58e4c7fc #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 RIP: 0010:add_to_queue fs/gfs2/glock.c:1600 [inline] RIP: 0010:gfs2_glock_nq+0xc7b/0x1cd0 fs/gfs2/glock.c:1644 Code: 03 0f 8e 56 0d 00 00 8b 53 18 48 89 ee 48 c7 c7 20 4d 7a 8b e8 56 65 b2 fd 48 8b 34 24 ba 01 00 00 00 31 ff e8 86 64 ff ff 90 <0f> 0b e8 ae f2 d1 fd 48 8b 7c 24 18 49 8d ac 24 80 00 00 00 e8 9c RSP: 0018:ffffc900049c7a48 EFLAGS: 00010282 RAX: 0000000000000000 RBX: ffff888078d24640 RCX: fffff52000938efa RDX: ffff88801a30bc00 RSI: ffffffff83bcb67b RDI: ffffffff8b7a8430 RBP: ffff88801fb31280 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000005 R12: ffff888066284500 R13: 00000000000013f2 R14: ffff888078d246c0 R15: ffff8880230d0e00 FS: 00005555620a1500(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5158e00000 CR3: 0000000065508000 CR4: 0000000000350ef0 Call Trace: gfs2_glock_nq_init fs/gfs2/glock.h:238 [inline] do_sync+0x45a/0xd30 fs/gfs2/quota.c:946 gfs2_quota_sync+0x419/0x630 fs/gfs2/quota.c:1370 gfs2_sync_fs+0x44/0xb0 fs/gfs2/super.c:670 sync_filesystem+0x110/0x290 fs/sync.c:56 generic_shutdown_super+0x7e/0x3d0 fs/super.c:621 kill_block_super+0x3b/0x90 fs/super.c:1685 gfs2_kill_sb+0x360/0x410 fs/gfs2/ops_fstype.c:1785 deactivate_locked_super+0xc1/0x1a0 fs/super.c:473 deactivate_super+0xde/0x100 fs/super.c:506 cleanup_mnt+0x222/0x450 fs/namespace.c:1267 task_work_run+0x151/0x250 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:114 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x275/0x2a0 kernel/entry/common.c:218 do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fa980776f07 Code: a8 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 a8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffc43a7e9b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fa980776f07 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc43a7ea70 RBP: 00007ffc43a7ea70 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffc43a7fb40 R13: 00007fa9807e3515 R14: 00007fa9807d5328 R15: 0000000000000000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:add_to_queue fs/gfs2/glock.c:1600 [inline] RIP: 0010:gfs2_glock_nq+0xc7b/0x1cd0 fs/gfs2/glock.c:1644 Code: 03 0f 8e 56 0d 00 00 8b 53 18 48 89 ee 48 c7 c7 20 4d 7a 8b e8 56 65 b2 fd 48 8b 34 24 ba 01 00 00 00 31 ff e8 86 64 ff ff 90 <0f> 0b e8 ae f2 d1 fd 48 8b 7c 24 18 49 8d ac 24 80 00 00 00 e8 9c RSP: 0018:ffffc900049c7a48 EFLAGS: 00010282 RAX: 0000000000000000 RBX: ffff888078d24640 RCX: fffff52000938efa RDX: ffff88801a30bc00 RSI: ffffffff83bcb67b RDI: ffffffff8b7a8430 RBP: ffff88801fb31280 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000005 R12: ffff888066284500 R13: 00000000000013f2 R14: ffff888078d246c0 R15: ffff8880230d0e00 FS: 00005555620a1500(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5158e00000 CR3: 0000000065508000 CR4: 0000000000350ef0