loop0: detected capacity change from 0 to 32768
gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
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 51336
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: 5316 Comm: syz.0.0 Not tainted 6.13.0-rc4-syzkaller-00054-gd6ef8b40d075 #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 40 e9 4e 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 47 38 14 fd e8 42 ae ac 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:ffffc9000d327608 EFLAGS: 00010293
RAX: ffffffff83f2c5ee RBX: 0000000000000004 RCX: ffff88801f444880
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000000
RBP: ffff888011eac000 R08: ffffffff83f2c4a7 R09: 1ffff11003f8519a
R10: dffffc0000000000 R11: ffffed1003f8519b R12: ffff888011eac2bc
R13: 00000000000003e8 R14: 1ffff110023d5857 R15: 0000000000000526
FS:  00007f5f06f376c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe7deccee8 CR3: 00000000440f2000 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_flags+0x48c/0x5c0 fs/super.c:1636
 gfs2_get_tree+0x54/0x220 fs/gfs2/ops_fstype.c:1330
 vfs_get_tree+0x90/0x2b0 fs/super.c:1814
 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: 0033:0x7f5f061874ca
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:00007f5f06f36e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f5f06f36ef0 RCX: 00007f5f061874ca
RDX: 0000000020037f40 RSI: 0000000020037f80 RDI: 00007f5f06f36eb0
RBP: 0000000020037f40 R08: 00007f5f06f36ef0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020037f80
R13: 00007f5f06f36eb0 R14: 0000000000037f58 R15: 0000000020000180
 </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 40 e9 4e 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 47 38 14 fd e8 42 ae ac 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:ffffc9000d327608 EFLAGS: 00010293
RAX: ffffffff83f2c5ee RBX: 0000000000000004 RCX: ffff88801f444880
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000000
RBP: ffff888011eac000 R08: ffffffff83f2c4a7 R09: 1ffff11003f8519a
R10: dffffc0000000000 R11: ffffed1003f8519b R12: ffff888011eac2bc
R13: 00000000000003e8 R14: 1ffff110023d5857 R15: 0000000000000526
FS:  00007f5f06f376c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe7deccee8 CR3: 00000000440f2000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400