RBP: 00007fcd031f5040 R08: 00007fcd031f5040 R09: 00000000200000c0
R10: 00000000008100e8 R11: 0000000000000202 R12: 00000000200000c0
R13: 0000000020000180 R14: 00007fcd031f5000 R15: 0000000020000680
EXT4-fs (sda): quotafile must be on filesystem root
INFO: task io_uring-sq:8664 blocked for more than 143 seconds.
      Not tainted 5.10.56 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:io_uring-sq     state:D stack:30920 pid: 8664 ppid:     2 flags:0x10004000
Call Trace:
 context_switch kernel/sched/core.c:3776 [inline]
 __schedule+0x848/0x1e80 kernel/sched/core.c:4525
 schedule+0xcb/0x270 kernel/sched/core.c:4603
 schedule_preempt_disabled+0xc/0x20 kernel/sched/core.c:4662
 kthread+0x2a3/0x470 kernel/kthread.c:285
 ret_from_fork+0x22/0x30 arch/x86/entry/entry_64.S:296

Showing all locks held in the system:
1 lock held by khungtaskd/22:
 #0: ffffffff84df6660 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x269 kernel/locking/lockdep.c:6377
1 lock held by in:imklog/189:
 #0: ffff88800e7d00f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:930
2 locks held by syz-executor/9313:

=============================================

FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 9328 Comm: syz-executor.5 Not tainted 5.10.56 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x107/0x163 lib/dump_stack.c:118
 fail_dump lib/fault-inject.c:52 [inline]
 should_fail.cold+0x5/0xa lib/fault-inject.c:146
 _copy_from_user+0x2e/0x1b0 lib/usercopy.c:14
 copy_from_user include/linux/uaccess.h:192 [inline]
 copy_mount_options+0x76/0x180 fs/namespace.c:3093
 __do_sys_mount fs/namespace.c:3427 [inline]
 __se_sys_mount fs/namespace.c:3409 [inline]
 __x64_sys_mount+0x1a8/0x300 fs/namespace.c:3409
 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x467b2a
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:00007fcd031f4fa8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000467b2a
RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 0000000000000000
RBP: 00007fcd031f5040 R08: 00007fcd031f5040 R09: 00000000200000c0
R10: 00000000008100e8 R11: 0000000000000202 R12: 00000000200000c0
R13: 0000000020000180 R14: 00007fcd031f5000 R15: 0000000020000680
EXT4-fs (sda): quotafile must be on filesystem root
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 9369 Comm: syz-executor.5 Not tainted 5.10.56 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x107/0x163 lib/dump_stack.c:118
 fail_dump lib/fault-inject.c:52 [inline]
 should_fail.cold+0x5/0xa lib/fault-inject.c:146
 should_failslab+0x5/0x10 mm/slab_common.c:1193
 slab_pre_alloc_hook mm/slab.h:515 [inline]
 slab_alloc_node mm/slub.c:2814 [inline]
 slab_alloc mm/slub.c:2897 [inline]
 kmem_cache_alloc+0x5b/0x350 mm/slub.c:2902
 getname_flags.part.0+0x50/0x4f0 fs/namei.c:138
 getname_flags fs/namei.c:2642 [inline]
 user_path_at_empty+0xa1/0x100 fs/namei.c:2642
 user_path_at include/linux/namei.h:59 [inline]
 do_mount fs/namespace.c:3221 [inline]
 __do_sys_mount fs/namespace.c:3432 [inline]
 __se_sys_mount fs/namespace.c:3409 [inline]
 __x64_sys_mount+0x1e9/0x300 fs/namespace.c:3409
 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x467b2a
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:00007fcd031f4fa8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000467b2a
RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 0000000000000000
RBP: 00007fcd031f5040 R08: 00007fcd031f5040 R09: 00000000200000c0
R10: 00000000008100e8 R11: 0000000000000202 R12: 00000000200000c0
R13: 0000000020000180 R14: 00007fcd031f5000 R15: 0000000020000680