------------[ cut here ]------------ kcov->t != t WARNING: kernel/kcov.c:475 at kcov_task_exit+0x181/0x240 kernel/kcov.c:475, CPU#0: udevd/19808 Modules linked in: CPU: 0 UID: 0 PID: 19808 Comm: udevd 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 d0 96 59 00 4c 89 f7 5b 41 5e 41 5f e9 f3 56 5f 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:ffffc900070a7d20 EFLAGS: 00010206 RAX: 3316ed1b5889a200 RBX: ffff88803319dd00 RCX: ffffffff99aad501 RDX: 0000000000a0e301 RSI: ffffffff8bcb9860 RDI: 00000000ffffffff RBP: ffffc900070a7e80 R08: ffffffff8b506e42 R09: 0000000000000000 R10: 0000000000000000 R11: ffffffff8e1c3780 R12: 0000000000000000 R13: ffff88803319dd00 R14: ffff88802cbc9100 R15: ffff88802cbc9108 FS: 00007f9d63125880(0000) GS:ffff888125c07000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055f8fbe34a38 CR3: 000000003d36c000 CR4: 00000000003526f0 Call Trace: do_exit+0x159/0x2360 kernel/exit.c:941 do_group_exit+0x22d/0x2f0 kernel/exit.c:1151 __do_sys_exit_group kernel/exit.c:1162 [inline] __se_sys_exit_group kernel/exit.c:1160 [inline] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1160 x64_sys_call+0x18c6/0x18d0 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f9d6325d6c5 Code: ff ff ff 64 89 02 eb d2 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 8b 35 21 f7 0f 00 ba e7 00 00 00 eb 03 66 90 f4 89 d0 0f 05 <48> 3d 00 f0 ff ff 76 f3 f7 d8 64 89 06 eb ec 66 2e 0f 1f 84 00 00 RSP: 002b:00007ffee8f005d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 000055f8fbe4df30 RCX: 00007f9d6325d6c5 RDX: 00000000000000e7 RSI: fffffffffffffe68 RDI: 0000000000000000 RBP: 000055f8fbe2b910 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffee8f00620 R14: 0000000000000000 R15: 0000000000000000