------------[ cut here ]------------ kcov->t != t WARNING: kernel/kcov.c:483 at kcov_task_exit+0xf5/0x160 kernel/kcov.c:483, CPU#0: syz-executor/8346 Modules linked in: CPU: 0 UID: 0 PID: 8346 Comm: syz-executor Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 RIP: 0010:kcov_task_exit+0xf5/0x160 kernel/kcov.c:483 Code: 10 00 00 48 8b bb 90 00 00 00 e8 36 68 55 00 48 89 df 5b 41 5e 41 5f e9 49 25 5b 00 7c 1c 5b 41 5e 41 5f e9 7d cb 69 09 cc 90 <0f> 0b 90 4c 89 f7 5b 41 5e 41 5f e9 9b 64 68 09 48 89 df be 03 00 RSP: 0018:ffffc900041f7ae0 EFLAGS: 00010202 RAX: 36df23ed73f4de00 RBX: ffff888034ff5400 RCX: 0000000000000000 RDX: 00000000888b1b09 RSI: ffffffff8ba73040 RDI: 00000000ffffffff RBP: ffffc900041f7c28 R08: ffffffff8b2cf750 R09: ffffffff8dfc80c0 R10: dffffc0000000000 R11: fffffbfff1f1717f R12: dffffc0000000000 R13: 0000000000000009 R14: ffff888034ff5408 R15: ffff888026ff9ec0 FS: 00005555792cd500(0000) GS:ffff888126109000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31022ff8 CR3: 00000000344fc000 CR4: 00000000003526f0 Call Trace: do_exit+0x150/0x22c0 kernel/exit.c:908 do_group_exit+0x21b/0x2d0 kernel/exit.c:1117 get_signal+0x125c/0x1310 kernel/signal.c:3037 arch_do_signal_or_restart+0xbc/0x830 arch/x86/kernel/signal.c:337 __exit_to_user_mode_loop kernel/entry/common.c:64 [inline] exit_to_user_mode_loop+0x86/0x480 kernel/entry/common.c:98 __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:238 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:328 [inline] do_syscall_64+0x33e/0xf80 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fdbdf2dd04e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffea9f35308 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: fffffffffffffe00 RBX: 00005555792cd500 RCX: 00007fdbdf2dd04e RDX: 0000000000000030 RSI: 00007ffea9f35400 RDI: 00000000000000f9 RBP: 00007ffea9f353ac R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000002cf R13: 00000000000927c0 R14: 0000000000180eb6 R15: 00007ffea9f35400