syzbot

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WARNING: kernel/kcov.c:477 at kcov_task_exit+0xf5/0x160 kernel/kcov.c:477, CPU#0: syz.2.19098/13421
Modules linked in:
CPU: 0 UID: 0 PID: 13421 Comm: syz.2.19098 Tainted: G             L      syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:kcov_task_exit+0xf5/0x160 kernel/kcov.c:477
Code: 10 00 00 48 8b bb 90 00 00 00 e8 d6 25 51 00 48 89 df 5b 41 5e 41 5f e9 e9 c9 56 00 7c 1c 5b 41 5e 41 5f c3 cc cc cc cc cc 90 <0f> 0b 90 4c 89 f7 5b 41 5e 41 5f e9 2b 64 14 09 48 89 df be 03 00
RSP: 0018:ffffc90015b4fd20 EFLAGS: 00010202
RAX: 735735281b8a8e00 RBX: ffff888028be5300 RCX: 0000000000000000
RDX: 00000000d06ba456 RSI: ffffffff8b3f5ac0 RDI: 00000000ffffffff
RBP: ffffc90015b4fe78 R08: ffffffff8ad41021 R09: ffffffff8d5ae940
R10: dffffc0000000000 R11: fffffbfff1db66cf R12: 1ffff1100686f10d
R13: 0000000000000000 R14: ffff888028be5308 R15: ffff888026953c80
FS:  000055556ba92500(0000) GS:ffff888126cee000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe34817f78 CR3: 000000003416e000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 do_exit+0xd1/0x22f0 kernel/exit.c:904
 do_group_exit+0x21c/0x2d0 kernel/exit.c:1112
 __do_sys_exit_group kernel/exit.c:1123 [inline]
 __se_sys_exit_group kernel/exit.c:1121 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1121
 x64_sys_call+0x2210/0x2210 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3e5728f749
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:00007ffd669b9428 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3e5728f749
RDX: 00007f3e564f9000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007ffd669b948c R08: 0000000000000138 R09: 00000000000927c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000000fa
R13: 00000000000927c0 R14: 00000000001194b4 R15: 00007ffd669b94e0
 </TASK>