------------[ cut here ]------------
WARNING: CPU: 1 PID: 5972 at kernel/kcov.c:477 kcov_task_exit+0x13c/0x150 kernel/kcov.c:477
Modules linked in:
CPU: 1 UID: 0 PID: 5972 Comm: kworker/1:6 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:kcov_task_exit+0x13c/0x150 kernel/kcov.c:477
Code: c7 c7 90 45 c5 8e 48 c7 c6 ab 27 da 8c 48 c7 c2 8a fd d8 8c 4c 89 f9 e8 32 4b f1 02 4c 39 bb 98 00 00 00 0f 84 ff fe ff ff 90 <0f> 0b 90 4c 89 f7 5b 41 5e 41 5f e9 d4 2e 04 09 0f 1f 40 00 90 90
RSP: 0018:ffffc9000522fbc0 EFLAGS: 00010206
RAX: b80387ebc8e5f000 RBX: ffff8880314e4600 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8b3ddfc0 RDI: 00000000ffffffff
RBP: ffffc9000522fd38 R08: 0000000000000000 R09: ffffffff8ac2db41
R10: dffffc0000000000 R11: fffffbfff1dac84f R12: dffffc0000000000
R13: 0000000000000000 R14: ffff8880314e4608 R15: ffff888024e0da00
FS:  0000000000000000(0000) GS:ffff888126ef6000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000034000 CR3: 000000000d3a6000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 do_exit+0x105/0x2300 kernel/exit.c:905
 kthread_exit+0x22c/0x280 kernel/kthread.c:336
 kthread+0x72f/0x8a0 kernel/kthread.c:465
 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>