gfs2: fsid=syz:syz.0: first mount done, others may mount
gfs2: fsid=syz:syz.0: Corruption found in quota_change0file: duplicate identifier in slot 176779
gfs2: fsid=syz:syz.0: warning: assertion "!qd->qd_change" failed - function = gfs2_qd_dispose, file = fs/gfs2/quota.c, line = 129
------------[ cut here ]------------
kernel BUG at fs/gfs2/util.c:414!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 6634 Comm: syz.0.15 Not tainted 6.15.0-rc5-next-20250507-syzkaller-09308-g08710e696081 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/29/2025
RIP: 0010:gfs2_assert_warn_i+0x251/0x260 fs/gfs2/util.c:414
Code: 00 e8 e3 a0 69 fe 48 c7 c7 20 d8 90 8a 4c 89 ee 48 8b 54 24 08 48 8b 4c 24 10 4c 8b 44 24 18 44 8b 4c 24 04 e8 b0 b7 91 fd 90 <0f> 0b 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90
RSP: 0018:ffffc90003657778 EFLAGS: 00010202
RAX: 0000000000000000 RBX: 1ffff1100ef30857 RCX: be84586c903e1d00
RDX: 0000000000000001 RSI: ffffffff8aa25e80 RDI: 00000000ffffffff
RBP: 1ffff1100ef30a5d R08: ffffc90003657487 R09: 1ffff920006cae90
R10: dffffc0000000000 R11: fffff520006cae91 R12: 00000000000003e8
R13: ffff888077984000 R14: dffffc0000000000 R15: ffff8880779842bc
FS:  00007f13679056c0(0000) GS:ffff8881282a9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055b8ce6ba950 CR3: 0000000023dda000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 gfs2_qd_dispose+0x3c2/0x4b0 fs/gfs2/quota.c:129
 gfs2_quota_init+0xba6/0x1010 fs/gfs2/quota.c:1469
 gfs2_make_fs_rw+0x3cb/0x510 fs/gfs2/super.c:159
 gfs2_fill_super+0x150f/0x1b40 fs/gfs2/ops_fstype.c:1281
 get_tree_bdev_flags+0x3d1/0x470 fs/super.c:1686
 gfs2_get_tree+0x4c/0x1a0 fs/gfs2/ops_fstype.c:1339
 vfs_get_tree+0x84/0x260 fs/super.c:1809
 do_new_mount+0x1c7/0x850 fs/namespace.c:3881
 do_mount fs/namespace.c:4221 [inline]
 __do_sys_mount fs/namespace.c:4432 [inline]
 __se_sys_mount+0x222/0x2b0 fs/namespace.c:4409
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1366b7ffba
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1367904e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f1367904ef0 RCX: 00007f1366b7ffba
RDX: 0000000020021140 RSI: 0000000020021180 RDI: 00007f1367904eb0
RBP: 0000000020021140 R08: 00007f1367904ef0 R09: 000000000300c888
R10: 000000000300c888 R11: 0000000000000246 R12: 0000000020021180
R13: 00007f1367904eb0 R14: 0000000000021170 R15: 0000000020000180
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:gfs2_assert_warn_i+0x251/0x260 fs/gfs2/util.c:414
Code: 00 e8 e3 a0 69 fe 48 c7 c7 20 d8 90 8a 4c 89 ee 48 8b 54 24 08 48 8b 4c 24 10 4c 8b 44 24 18 44 8b 4c 24 04 e8 b0 b7 91 fd 90 <0f> 0b 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90
RSP: 0018:ffffc90003657778 EFLAGS: 00010202
RAX: 0000000000000000 RBX: 1ffff1100ef30857 RCX: be84586c903e1d00
RDX: 0000000000000001 RSI: ffffffff8aa25e80 RDI: 00000000ffffffff
RBP: 1ffff1100ef30a5d R08: ffffc90003657487 R09: 1ffff920006cae90
R10: dffffc0000000000 R11: fffff520006cae91 R12: 00000000000003e8
R13: ffff888077984000 R14: dffffc0000000000 R15: ffff8880779842bc
FS:  00007f13679056c0(0000) GS:ffff8881282a9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055b8ce6ba950 CR3: 0000000023dda000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400