syzbot

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kcov->t != t
WARNING: kernel/kcov.c:483 at kcov_task_exit+0xf5/0x160 kernel/kcov.c:483, CPU#1: kworker/0:0/9
Modules linked in:
CPU: 1 UID: 0 PID: 9 Comm: kworker/0:0 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:kcov_task_exit+0xf5/0x160 kernel/kcov.c:483
Code: 10 00 00 48 8b bb 90 00 00 00 e8 66 5b 54 00 48 89 df 5b 41 5e 41 5f e9 89 32 5a 00 7c 1c 5b 41 5e 41 5f e9 0d c6 61 09 cc 90 <0f> 0b 90 4c 89 f7 5b 41 5e 41 5f e9 6b 5f 60 09 48 89 df be 03 00
RSP: 0018:ffffc900000e7cc0 EFLAGS: 00010206
RAX: 1539f49d14d16d00 RBX: ffff888035381b00 RCX: 0000000000000000
RDX: 00000000d18430c8 RSI: ffffffff8ba65de0 RDI: 00000000ffffffff
RBP: ffffc900000e7e18 R08: ffffffff8b24b1d0 R09: ffffffff8ddcb840
R10: dffffc0000000000 R11: fffffbfff1ed4617 R12: dffffc0000000000
R13: 0000000000000000 R14: ffff888035381b08 R15: ffff88801c6fdb80
FS:  0000000000000000(0000) GS:ffff88812643f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000175030 CR3: 000000004cde6000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 do_exit+0x150/0x23c0 kernel/exit.c:909
 kthread+0x3a6/0x470 kernel/kthread.c:438
 ret_from_fork+0x51e/0xb90 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>