gfs2: fsid=syz:syz.0: Corruption found in quota_change0file: duplicate identifier in slot 82152
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] PREEMPT SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5614 Comm: syz.0.15 Not tainted 6.12.0-rc4-syzkaller-00047-gc2ee9f594da8 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:gfs2_assert_warn_i+0x2df/0x2f0 fs/gfs2/util.c:414
Code: fe 48 c7 c7 00 07 50 8c 48 89 ee 48 8b 54 24 08 48 8b 4c 24 10 4c 8b 44 24 18 44 8b 4c 24 04 e8 57 82 d5 07 e8 02 0b a7 fd 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90
RSP: 0018:ffffc900025e7608 EFLAGS: 00010293
RAX: ffffffff83edccde RBX: 0000000000000004 RCX: ffff88801e14c880
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000000
RBP: ffff888033078000 R08: ffffffff83edcb97 R09: 1ffff11003f8519a
R10: dffffc0000000000 R11: ffffed1003f8519b R12: ffff8880330782bc
R13: 00000000000003e8 R14: 1ffff1100660f057 R15: 0000000000002086
FS:  00007f1eec91f6c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005646e01631c8 CR3: 000000003ccc2000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 gfs2_qd_dispose+0x4af/0x5b0 fs/gfs2/quota.c:129
 gfs2_quota_init+0xd7b/0x1440 fs/gfs2/quota.c:1470
 gfs2_make_fs_rw+0x43f/0x5e0 fs/gfs2/super.c:159
 gfs2_fill_super+0x22a1/0x24d0 fs/gfs2/ops_fstype.c:1274
 get_tree_bdev+0x3f7/0x570 fs/super.c:1635
 gfs2_get_tree+0x54/0x220 fs/gfs2/ops_fstype.c:1330
 vfs_get_tree+0x90/0x2b0 fs/super.c:1800
 do_new_mount+0x2be/0xb40 fs/namespace.c:3507
 do_mount fs/namespace.c:3847 [inline]
 __do_sys_mount fs/namespace.c:4057 [inline]
 __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4034
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1eebb7f79a
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:00007f1eec91ee68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f1eec91eef0 RCX: 00007f1eebb7f79a
RDX: 0000000020021140 RSI: 0000000020021180 RDI: 00007f1eec91eeb0
RBP: 0000000020021140 R08: 00007f1eec91eef0 R09: 000000000300c888
R10: 000000000300c888 R11: 0000000000000246 R12: 0000000020021180
R13: 00007f1eec91eeb0 R14: 000000000002119d R15: 0000000020000080
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:gfs2_assert_warn_i+0x2df/0x2f0 fs/gfs2/util.c:414
Code: fe 48 c7 c7 00 07 50 8c 48 89 ee 48 8b 54 24 08 48 8b 4c 24 10 4c 8b 44 24 18 44 8b 4c 24 04 e8 57 82 d5 07 e8 02 0b a7 fd 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90
RSP: 0018:ffffc900025e7608 EFLAGS: 00010293
RAX: ffffffff83edccde RBX: 0000000000000004 RCX: ffff88801e14c880
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000000
RBP: ffff888033078000 R08: ffffffff83edcb97 R09: 1ffff11003f8519a
R10: dffffc0000000000 R11: ffffed1003f8519b R12: ffff8880330782bc
R13: 00000000000003e8 R14: 1ffff1100660f057 R15: 0000000000002086
FS:  00007f1eec91f6c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005646e01631c8 CR3: 000000003ccc2000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400