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:403!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 6503 Comm: syz.0.15 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:gfs2_assert_warn_i+0x2bb/0x2c0 fs/gfs2/util.c:403
Code: fe 48 c7 c7 c0 15 b2 8b 4c 89 ee 48 8b 54 24 08 48 8b 4c 24 10 4c 8b 44 24 18 44 8b 4c 24 04 e8 9b c4 23 fd e8 56 d5 bc fd 90 <0f> 0b 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f
RSP: 0018:ffffc900034e7778 EFLAGS: 00010293
RAX: ffffffff84036eba RBX: 1ffff1100f9f5057 RCX: ffff88806f1f8000
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000000
RBP: 1ffff1100f9f5266 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1bfa650 R12: ffff88807cfa82bc
R13: ffff88807cfa8000 R14: 0000000000000004 R15: dffffc0000000000
FS:  00007f254783d6c0(0000) GS:ffff888125e0b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb47798dd30 CR3: 000000002482a000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 gfs2_qd_dispose+0x4aa/0x5b0 fs/gfs2/quota.c:129
 gfs2_quota_init+0xcb0/0x1200 fs/gfs2/quota.c:1469
 gfs2_make_fs_rw+0x181/0x2b0 fs/gfs2/super.c:149
 gfs2_fill_super+0x1a7b/0x20d0 fs/gfs2/ops_fstype.c:1280
 get_tree_bdev_flags+0x40e/0x4d0 fs/super.c:1691
 gfs2_get_tree+0x51/0x1e0 fs/gfs2/ops_fstype.c:1337
 vfs_get_tree+0x92/0x2b0 fs/super.c:1751
 fc_mount fs/namespace.c:1208 [inline]
 do_new_mount_fc fs/namespace.c:3651 [inline]
 do_new_mount+0x302/0xa10 fs/namespace.c:3727
 do_mount fs/namespace.c:4050 [inline]
 __do_sys_mount fs/namespace.c:4238 [inline]
 __se_sys_mount+0x313/0x410 fs/namespace.c:4215
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f254697ffba
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:00007f254783ce68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f254783cef0 RCX: 00007f254697ffba
RDX: 0000000020021140 RSI: 0000000020021180 RDI: 00007f254783ceb0
RBP: 0000000020021140 R08: 00007f254783cef0 R09: 000000000300c888
R10: 000000000300c888 R11: 0000000000000246 R12: 0000000020021180
R13: 00007f254783ceb0 R14: 0000000000021170 R15: 0000000020000180
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:gfs2_assert_warn_i+0x2bb/0x2c0 fs/gfs2/util.c:403
Code: fe 48 c7 c7 c0 15 b2 8b 4c 89 ee 48 8b 54 24 08 48 8b 4c 24 10 4c 8b 44 24 18 44 8b 4c 24 04 e8 9b c4 23 fd e8 56 d5 bc fd 90 <0f> 0b 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f
RSP: 0018:ffffc900034e7778 EFLAGS: 00010293
RAX: ffffffff84036eba RBX: 1ffff1100f9f5057 RCX: ffff88806f1f8000
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000000
RBP: 1ffff1100f9f5266 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1bfa650 R12: ffff88807cfa82bc
R13: ffff88807cfa8000 R14: 0000000000000004 R15: dffffc0000000000
FS:  00007f254783d6c0(0000) GS:ffff888125e0b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb47798dd30 CR3: 000000002482a000 CR4: 00000000003526f0