kthread_run failed with err -4
------------[ cut here ]------------
kcov->t != t
WARNING: kernel/kcov.c:483 at kcov_task_exit+0xf5/0x160 kernel/kcov.c:483, CPU#0: syz-executor/6022
Modules linked in:
CPU: 0 UID: 0 PID: 6022 Comm: syz-executor Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
RIP: 0010:kcov_task_exit+0xf5/0x160 kernel/kcov.c:483
Code: 10 00 00 48 8b bb 90 00 00 00 e8 36 68 55 00 48 89 df 5b 41 5e 41 5f e9 49 25 5b 00 7c 1c 5b 41 5e 41 5f e9 7d cb 69 09 cc 90 <0f> 0b 90 4c 89 f7 5b 41 5e 41 5f e9 9b 64 68 09 48 89 df be 03 00
RSP: 0018:ffffc900051efae0 EFLAGS: 00010283
RAX: 01dde310a321e100 RBX: ffff88802aac9a00 RCX: 0000000000000000
RDX: 000000009c6ac396 RSI: ffffffff8ba73040 RDI: 00000000ffffffff
RBP: ffffc900051efc28 R08: ffffffff8b2cf750 R09: ffffffff8dfc80c0
R10: dffffc0000000000 R11: fffffbfff1f1717f R12: dffffc0000000000
R13: 0000000000000009 R14: ffff88802aac9a08 R15: ffff888028da9ec0
FS:  00005555720eb500(0000) GS:ffff888126109000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc9c442fb0 CR3: 0000000039896000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 do_exit+0x150/0x22c0 kernel/exit.c:908
 do_group_exit+0x21b/0x2d0 kernel/exit.c:1117
 get_signal+0x125c/0x1310 kernel/signal.c:3037
 arch_do_signal_or_restart+0xbc/0x830 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:64 [inline]
 exit_to_user_mode_loop+0x86/0x480 kernel/entry/common.c:98
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:238 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:328 [inline]
 do_syscall_64+0x33e/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fce55e3d04e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007ffe06c02d18 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: 0000000000000170 RBX: 00005555720eb500 RCX: 00007fce55e3d04e
RDX: 0000000000000170 RSI: 00007fce56c24670 RDI: 0000000000000005
RBP: 0000000000000001 R08: 00007ffe06c02d94 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000005
R13: 0000000000000000 R14: 00007fce56c24670 R15: 0000000000000000
 </TASK>