------------[ cut here ]------------ WARNING: kernel/kcov.c:477 at kcov_task_exit+0xf5/0x160 kernel/kcov.c:477, CPU#0: syz.2.3459/16432 Modules linked in: CPU: 0 UID: 0 PID: 16432 Comm: syz.2.3459 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:kcov_task_exit+0xf5/0x160 kernel/kcov.c:477 Code: 10 00 00 48 8b bb 90 00 00 00 e8 e6 24 51 00 48 89 df 5b 41 5e 41 5f e9 f9 c8 56 00 7c 1c 5b 41 5e 41 5f e9 8d ca 15 09 cc 90 <0f> 0b 90 4c 89 f7 5b 41 5e 41 5f e9 cb 64 14 09 48 89 df be 03 00 RSP: 0018:ffffc9000d6a7d20 EFLAGS: 00010206 RAX: e5234e5670d8a400 RBX: ffff888024d3b100 RCX: 0000000000000000 RDX: 00000000c1eb2ddc RSI: ffffffff8b3f57c0 RDI: 00000000ffffffff RBP: ffffc9000d6a7e78 R08: ffffffff8ad41021 R09: ffffffff8d5ae940 R10: dffffc0000000000 R11: fffffbfff1db66cf R12: 1ffff11005bd5a6d R13: 0000000000000000 R14: ffff888024d3b108 R15: ffff8880249edac0 FS: 0000555584b2f500(0000) GS:ffff888126cef000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b3311cff8 CR3: 000000005e806000 CR4: 00000000003526f0 Call Trace: do_exit+0xd1/0x22f0 kernel/exit.c:904 do_group_exit+0x21c/0x2d0 kernel/exit.c:1112 __do_sys_exit_group kernel/exit.c:1123 [inline] __se_sys_exit_group kernel/exit.c:1121 [inline] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1121 x64_sys_call+0x2210/0x2210 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f468c0ff749 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffd707f1508 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f468c0ff749 RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007ffd707f156c R08: 00000007707f15ff R09: 00000000000927c0 R10: 0000000000000844 R11: 0000000000000246 R12: 0000000000000095 R13: 00000000000927c0 R14: 00000000000ef583 R15: 00007ffd707f15c0