------------[ cut here ]------------ kcov->t != t WARNING: kernel/kcov.c:475 at kcov_task_exit+0x181/0x240 kernel/kcov.c:475, CPU#0: syz-executor/6167 Modules linked in: CPU: 0 UID: 0 PID: 6167 Comm: syz-executor 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 c3 cc cc cc cc 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:ffffc900056b7ae0 EFLAGS: 00010206 RAX: 9c14ab4abdc40700 RBX: ffff8880258f1f00 RCX: 0000000000000000 RDX: 00000000b9174e89 RSI: ffffffff8bca7860 RDI: 00000000ffffffff RBP: ffffc900056b7c30 R08: ffffffff8b46cb20 R09: 0000000000000000 R10: 0000000000000000 R11: ffffffff8e1c3000 R12: 0000000000000009 R13: 0000000000000004 R14: ffff8880293a3100 R15: ffff8880293a3108 FS: 000055557c551500(0000) GS:ffff888125c3e000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa851198658 CR3: 000000003b288000 CR4: 00000000003526f0 DR0: 0000000000000013 DR1: 00000000000001f8 DR2: 0000000000000084 DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: 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: 0033:0x7feccf78e84e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007fff099bd7e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: fffffffffffffe00 RBX: 000055557c551500 RCX: 00007feccf78e84e RDX: 0000000000000030 RSI: 00007fff099bd8e0 RDI: 00000000000000f9 RBP: 00007fff099bd88c R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000140c R13: 00000000000927c0 R14: 000000000027d642 R15: 00007fff099bd8e0