------------[ cut here ]------------ kcov->t != t WARNING: kernel/kcov.c:475 at kcov_task_exit+0x181/0x240 kernel/kcov.c:475, CPU#1: syz.2.505/7346 Modules linked in: CPU: 1 UID: 0 PID: 7346 Comm: syz.2.505 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 RIP: 0010:kcov_task_exit+0x181/0x240 kernel/kcov.c:475 Code: 90 00 00 00 e8 f0 3a 5a 00 4c 89 f7 5b 41 5e 41 5f e9 f3 fc 5f 00 7c 40 5b 41 5e 41 5f e9 07 6d 6e 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:ffffc9000eabfd20 EFLAGS: 00010287 RAX: 5218b7971b1e7700 RBX: ffff888033180000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8baa5560 RDI: 00000000ffffffff RBP: ffffc9000eabfe80 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: fffffbfff1f18d3f R12: 0000000000000000 R13: ffff888033180000 R14: ffff888034ccc100 R15: ffff888034ccc108 FS: 00005555791e7500(0000) GS:ffff888125fd4000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000020000001c000 CR3: 000000004105e000 CR4: 00000000003526f0 Call Trace: do_exit+0x159/0x2360 kernel/exit.c:937 do_group_exit+0x22d/0x2f0 kernel/exit.c:1147 __do_sys_exit_group kernel/exit.c:1158 [inline] __se_sys_exit_group kernel/exit.c:1156 [inline] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1156 x64_sys_call+0x221a/0x2240 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fae8a2ece59 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:00007ffd4702cf58 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fae8a2ece59 RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007ffd4702cfbc R08: 0000000000000000 R09: 00000000000927c0 R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000065 R13: 00000000000927c0 R14: 000000000002dc14 R15: 00007ffd4702d010