syzbot

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WARNING: CPU: 0 PID: 13370 at kernel/kcov.c:477 kcov_task_exit+0x13c/0x150 kernel/kcov.c:477
Modules linked in:
CPU: 0 UID: 0 PID: 13370 Comm: syz.5.3270 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 10 40 c5 8e 48 c7 c6 bb 23 da 8c 48 c7 c2 9a f9 d8 8c 4c 89 f9 e8 12 3e 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 f4 0e 04 09 0f 1f 40 00 90 90
RSP: 0018:ffffc900064afac0 EFLAGS: 00010287
RAX: fc9d77277e2cca00 RBX: ffff88803ba78900 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8b3dddc0 RDI: 00000000ffffffff
RBP: ffffc900064afc28 R08: 0000000000000000 R09: ffffffff8ac2bb41
R10: dffffc0000000000 R11: fffffbfff1dac78f R12: 1ffff110054a9c4d
R13: 0000000000000000 R14: ffff88803ba78908 R15: ffff8880284b0000
FS:  00007f1ce0c966c0(0000) GS:ffff888126df7000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31317ff8 CR3: 000000005cc80000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 do_exit+0x105/0x2300 kernel/exit.c:905
 do_group_exit+0x21c/0x2d0 kernel/exit.c:1107
 get_signal+0x125d/0x1310 kernel/signal.c:3034
 arch_do_signal_or_restart+0xa0/0x790 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop+0x72/0x130 kernel/entry/common.c:40
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
 do_syscall_64+0x2bd/0xfa0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1ce2a2f6c9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 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:00007f1ce0c960e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f1ce2c85fa8 RCX: 00007f1ce2a2f6c9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f1ce2c85fa8
RBP: 00007f1ce2c85fa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f1ce2c86038 R14: 00007fff61133e70 R15: 00007fff61133f58
 </TASK>