------------[ cut here ]------------
kcov->t != t
WARNING: kernel/kcov.c:475 at kcov_task_exit+0x181/0x240 kernel/kcov.c:475, CPU#0: syz.0.2683/18324
Modules linked in:
CPU: 0 UID: 0 PID: 18324 Comm: syz.0.2683 Tainted: G             L      syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:kcov_task_exit+0x181/0x240 kernel/kcov.c:475
Code: 90 00 00 00 e8 e0 d2 57 00 4c 89 f7 5b 41 5e 41 5f e9 c3 92 5d 00 7c 40 5b 41 5e 41 5f e9 97 4b 82 09 cc 90 0f 0b 90 eb 10 90 <0f> 0b 90 eb 0a 90 0f 0b 90 eb 04 90 0f 0b 90 4c 89 ff 5b 41 5e 41
RSP: 0018:ffffc90004217ae0 EFLAGS: 00010206
RAX: 05cdfb14f6281300 RBX: ffff88801a790000 RCX: 0000000000000000
RDX: 00000000d18430c8 RSI: ffffffff8bca7860 RDI: 00000000ffffffff
RBP: ffffc90004217c30 R08: ffffffff8b46bb20 R09: 0000000000000000
R10: 0000000000000000 R11: ffffffff8e1c3000 R12: 0000000000000009
R13: 0000000000000004 R14: ffff88804054bb00 R15: ffff88804054bb08
FS:  00007f4bb15716c0(0000) GS:ffff888125c3e000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f472642de9c CR3: 000000005ff0e000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 do_exit+0x159/0x2360 kernel/exit.c:942
 do_group_exit+0x22d/0x2f0 kernel/exit.c:1152
 get_signal+0x121b/0x12c0 kernel/signal.c:3046
 arch_do_signal_or_restart+0xbb/0x860 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:66 [inline]
 exit_to_user_mode_loop+0x104/0x730 kernel/entry/common.c:101
 __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:230 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:318 [inline]
 do_syscall_64+0x353/0x580 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f4bb377e019
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f4bb15710e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f4bb3a06278 RCX: 00007f4bb377e019
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f4bb3a06278
RBP: 00007f4bb3a06270 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f4bb3a06308 R14: 00007fff02cb5690 R15: 00007fff02cb5778
 </TASK>