EXT4-fs error (device loop6): ext4_quota_enable:7138: comm syz-executor.6: Bad quota inode: 3, type: 0
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WARNING: kernel/printk/printk_ringbuffer.c:1278 at get_data+0x364/0x400, CPU#0: syz-executor.6/119140
Modules linked in:
CPU: 0 UID: 0 PID: 119140 Comm: syz-executor.6 Not tainted 6.18.0-rc3-next-20251031 #1 PREEMPT(voluntary) 
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:get_data+0x364/0x400
Code: e8 83 e0 07 83 c0 03 38 d0 0f 8c be fe ff ff 84 d2 0f 84 b6 fe ff ff 48 89 ef e8 17 b8 5b 00 e9 a9 fe ff ff e8 4d bb 1e 00 90 <0f> 0b 90 45 31 e4 e9 3b ff ff ff e8 3c bb 1e 00 90 0f 0b 90 45 31
RSP: 0018:ffff888057197090 EFLAGS: 00010216
RAX: 000000000000822e RBX: ffff8880571971a8 RCX: ffffc90005e40000
RDX: 0000000000040000 RSI: ffffffff81555ba3 RDI: 0000000000000006
RBP: ffff888057197170 R08: 0000000000000d77 R09: 0000027b0dc888fe
R10: 0000000000000000 R11: 0001d1648200008d R12: ffffffff85d30790
R13: 00003fffffffffff R14: 0000000000000000 R15: 0000000000000000
FS:  00007faf3103b700(0000) GS:ffff8880e53ed000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007faf3103c000 CR3: 0000000056373000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 _prb_read_valid+0x2f3/0x830
 prb_read_valid+0x78/0xa0
 printk_get_next_message+0x10b/0x570
 console_flush_one_record+0x64f/0xb20
 __console_flush_and_unlock+0xb1/0x1d0
 vprintk_emit+0x4c1/0x690
 _printk+0xbe/0xf0
 __ext4_warning+0x1c6/0x1f0
 ext4_enable_quotas+0x765/0xb10
 ext4_fill_super+0x8af0/0xb910
 get_tree_bdev_flags+0x38a/0x620
 vfs_get_tree+0x93/0x340
 path_mount+0x720/0x2130
 __x64_sys_mount+0x293/0x310
 do_syscall_64+0xbf/0x390
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7faf33ac704a
Code: 48 c7 c2 bc ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007faf3103afa8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007faf33ac704a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007faf3103b000
RBP: 00007faf3103b040 R08: 00007faf3103b040 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000000
R13: 0000000020000100 R14: 00007faf3103b000 R15: 0000000020000040
 </TASK>
irq event stamp: 2741
hardirqs last  enabled at (2747): [<ffffffff8154e480>] vprintk_emit+0x650/0x690
hardirqs last disabled at (2752): [<ffffffff8154e411>] vprintk_emit+0x5e1/0x690
softirqs last  enabled at (2670): [<ffffffff813bc0ec>] handle_softirqs+0x50c/0x770
softirqs last disabled at (2661): [<ffffffff813bc484>] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
EXT4-fs (loop6): mount failed