------------[ cut here ]------------
kcov->t != t
WARNING: kernel/kcov.c:483 at kcov_task_exit+0xf5/0x160 kernel/kcov.c:483, CPU#1: syz.0.2867/15229
Modules linked in:
CPU: 1 UID: 0 PID: 15229 Comm: syz.0.2867 Tainted: G             L      syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [L]=SOFTLOCKUP
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 e6 54 54 00 48 89 df 5b 41 5e 41 5f e9 09 2c 5a 00 7c 1c 5b 41 5e 41 5f e9 bd 69 61 09 cc 90 <0f> 0b 90 4c 89 f7 5b 41 5e 41 5f e9 1b 03 60 09 48 89 df be 03 00
RSP: 0018:ffffc90005027ae0 EFLAGS: 00010283
RAX: 20294d633a67bf00 RBX: ffff888028266100 RCX: 0000000000000000
RDX: 0000000014dee08c RSI: ffffffff8ba64a60 RDI: 00000000ffffffff
RBP: ffffc90005027c28 R08: ffffffff8b2451d0 R09: ffffffff8ddcd780
R10: dffffc0000000000 R11: fffffbfff1ed46b7 R12: 1ffff11005c07d3d
R13: 0000000000000000 R14: ffff888028266108 R15: ffff88802e435b80
FS:  00007f9ac9a8e6c0(0000) GS:ffff888126440000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd41d6891ab CR3: 0000000081394000 CR4: 00000000003526f0
DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000083
DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 do_exit+0xd8/0x2320 kernel/exit.c:904
 do_group_exit+0x21b/0x2d0 kernel/exit.c:1112
 get_signal+0x125c/0x1310 kernel/signal.c:3034
 arch_do_signal_or_restart+0xbc/0x830 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:64 [inline]
 exit_to_user_mode_loop+0x86/0x480 kernel/entry/common.c:98
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:325 [inline]
 do_syscall_64+0x32d/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9acb83c799
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:00007f9ac9a8e028 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: 000000000000000b RBX: 00007f9acbab5fa0 RCX: 00007f9acb83c799
RDX: 0000000000000651 RSI: 0000200000000000 RDI: 0000000000000008
RBP: 00007f9acb8d2bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f9acbab6038 R14: 00007f9acbab5fa0 R15: 00007ffd64b07a08
 </TASK>