------------[ cut here ]------------ WARNING: CPU: 1 PID: 13505 at kernel/kcov.c:477 kcov_task_exit+0x13c/0x150 kernel/kcov.c:477 Modules linked in: CPU: 1 UID: 0 PID: 13505 Comm: syz-executor Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:kcov_task_exit+0x13c/0x150 kernel/kcov.c:477 Code: c7 c7 50 3a c5 8e 48 c7 c6 59 1e da 8c 48 c7 c2 2d f4 d8 8c 4c 89 f9 e8 e2 35 f1 02 4c 39 bb 98 00 00 00 0f 84 ff fe ff ff 90 <0f> 0b 90 4c 89 f7 5b 41 5e 41 5f e9 c4 fe 03 09 0f 1f 40 00 90 90 RSP: 0018:ffffc90005427ac0 EFLAGS: 00010206 RAX: 2b7c3766e9defd00 RBX: ffff8880323c5c00 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8b3ddd40 RDI: 00000000ffffffff RBP: ffffc90005427c28 R08: 0000000000000000 R09: ffffffff8ac2ab41 R10: dffffc0000000000 R11: fffffbfff1dac6cf R12: 1ffff110056022ed R13: 0000000000000009 R14: ffff8880323c5c08 R15: ffff888026660000 FS: 00005555643be500(0000) GS:ffff888126ef7000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc04541a0d7 CR3: 00000000528e4000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000036f4000e DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: do_exit+0x105/0x2300 kernel/exit.c:905 do_group_exit+0x21c/0x2d0 kernel/exit.c:1107 get_signal+0x125d/0x1310 kernel/signal.c:3034 arch_do_signal_or_restart+0xa0/0x790 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop+0x72/0x130 kernel/entry/common.c:40 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline] do_syscall_64+0x2bd/0xfa0 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f739b665817 Code: 89 7c 24 10 48 89 4c 24 18 e8 65 1c 03 00 4c 8b 54 24 18 8b 54 24 14 41 89 c0 48 8b 74 24 08 8b 7c 24 10 b8 3d 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 89 44 24 10 e8 b5 1c 03 00 8b 44 RSP: 002b:00007ffcf39bb240 EFLAGS: 00000293 ORIG_RAX: 000000000000003d RAX: fffffffffffffe00 RBX: 00000000000001b9 RCX: 00007f739b665817 RDX: 0000000040000000 RSI: 00007ffcf39bb2ac RDI: 00000000ffffffff RBP: 00007ffcf39bb2ac R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000089 R13: 00005555643d1590 R14: 00000000001715c7 R15: 00007ffcf39bb300