------------[ cut here ]------------ kcov->t != t WARNING: kernel/kcov.c:483 at kcov_task_exit+0xf5/0x160 kernel/kcov.c:483, CPU#1: syz-executor/13176 Modules linked in: CPU: 1 UID: 0 PID: 13176 Comm: syz-executor Tainted: G L syzkaller #0 PREEMPT_{RT,(full)} Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 RIP: 0010:kcov_task_exit+0xf5/0x160 kernel/kcov.c:483 Code: 10 00 00 48 8b bb 90 00 00 00 e8 a6 31 58 00 48 89 df 5b 41 5e 41 5f e9 c9 ed 5d 00 7c 1c 5b 41 5e 41 5f e9 bd 48 72 09 cc 90 <0f> 0b 90 4c 89 f7 5b 41 5e 41 5f e9 1b df 70 09 48 89 df be 03 00 RSP: 0018:ffffc9001cb2fae0 EFLAGS: 00010283 RAX: 7c9f937db37e7f00 RBX: ffff88802a532400 RCX: 0000000000000000 RDX: 00000000b9174e89 RSI: ffffffff8baa6d40 RDI: 00000000ffffffff RBP: ffffc9001cb2fc30 R08: ffffffff8b35f9d0 R09: ffffffff8e1c8240 R10: dffffc0000000000 R11: fffffbfff1f59a7f R12: dffffc0000000000 R13: 0000000000000009 R14: ffff88802a532408 R15: ffff888042678000 FS: 000055555bac8500(0000) GS:ffff888125dc7000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe9197dda08 CR3: 0000000027376000 CR4: 00000000003526f0 DR0: ffffffffffffffff DR1: 00000000000041f8 DR2: 0000000000000004 DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: do_exit+0x150/0x22c0 kernel/exit.c:908 do_group_exit+0x21b/0x2d0 kernel/exit.c:1117 get_signal+0x1284/0x1330 kernel/signal.c:3037 arch_do_signal_or_restart+0xbc/0x840 arch/x86/kernel/signal.c:337 __exit_to_user_mode_loop kernel/entry/common.c:64 [inline] exit_to_user_mode_loop+0x8c/0x4d0 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:318 [inline] do_syscall_64+0x33e/0xf80 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f7c5c31d68e 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:00007ffeca665e58 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: fffffffffffffe00 RBX: 000055555bac8500 RCX: 00007f7c5c31d68e RDX: 0000000000000030 RSI: 00007ffeca665f50 RDI: 00000000000000f9 RBP: 00007ffeca665efc R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000258 R13: 00000000000927c0 R14: 00000000000d3403 R15: 00007ffeca665f50