------------[ cut here ]------------ kcov->t != t WARNING: kernel/kcov.c:475 at kcov_task_exit+0x181/0x240 kernel/kcov.c:475, CPU#0: syz.3.101/6162 Modules linked in: CPU: 0 UID: 0 PID: 6162 Comm: syz.3.101 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 50 cb 57 00 4c 89 f7 5b 41 5e 41 5f e9 f3 8b 5d 00 7c 40 5b 41 5e 41 5f e9 87 ec 7f 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:ffffc90007ae7ae0 EFLAGS: 00010287 RAX: b03dfe01585e4300 RBX: ffff8880314a1f00 RCX: 0000000000000000 RDX: 0000000014dee08c RSI: ffffffff8bca5f60 RDI: 00000000ffffffff RBP: ffffc90007ae7c30 R08: ffffffff8b43b9a0 R09: 0000000000000000 R10: 0000000000000000 R11: ffffffff8e1c3000 R12: 0000000000000009 R13: 0000000000000004 R14: ffff88801ff34c00 R15: ffff88801ff34c08 FS: 00007f0e078966c0(0000) GS:ffff888125c4c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe820b53591 CR3: 0000000021f66000 CR4: 00000000003526f0 Call Trace: do_exit+0x159/0x2360 kernel/exit.c:937 do_group_exit+0x22d/0x2f0 kernel/exit.c:1147 get_signal+0x121b/0x12c0 kernel/signal.c:3038 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: 0033:0x7f0e0965d3d0 Code: 83 c0 16 83 e0 f7 74 12 50 48 8d 3d aa 1d 07 00 e8 65 65 f9 ff 0f 1f 44 00 00 c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 <83> ff 21 74 0b c3 66 2e 0f 1f 84 00 00 00 00 00 55 53 48 89 f3 48 RSP: 002b:00007f0e07895a78 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 00007f0e098c5fa0 RCX: 00007f0e0963de59 RDX: 00007f0e07895a80 RSI: 00007f0e07895bb0 RDI: 0000000000000021 RBP: 00007f0e096d3e6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000800 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f0e098c6038 R14: 00007f0e098c5fa0 R15: 00007ffc640c88a8