------------[ cut here ]------------ kcov->t != t WARNING: kernel/kcov.c:483 at kcov_task_exit+0xf5/0x160 kernel/kcov.c:483, CPU#0: syz-executor/20428 Modules linked in: CPU: 0 UID: 0 PID: 20428 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 02/12/2026 RIP: 0010:kcov_task_exit+0xf5/0x160 kernel/kcov.c:483 Code: 10 00 00 48 8b bb 90 00 00 00 e8 26 58 54 00 48 89 df 5b 41 5e 41 5f e9 49 2f 5a 00 7c 1c 5b 41 5e 41 5f e9 cd c9 61 09 cc 90 <0f> 0b 90 4c 89 f7 5b 41 5e 41 5f e9 2b 63 60 09 48 89 df be 03 00 RSP: 0018:ffffc90006c77ae0 EFLAGS: 00010202 RAX: 3ba413513b51f300 RBX: ffff8880264b1600 RCX: 0000000000000000 RDX: 000000004f210036 RSI: ffffffff8ba64de0 RDI: 00000000ffffffff RBP: ffffc90006c77c28 R08: ffffffff8b24b1d0 R09: ffffffff8ddcd780 R10: dffffc0000000000 R11: fffffbfff1ed49f7 R12: dffffc0000000000 R13: 0000000000000009 R14: ffff8880264b1608 R15: ffff888011430000 FS: 0000555579924500(0000) GS:ffff88812633d000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2e20420218 CR3: 000000005bb6e000 CR4: 00000000003526f0 Call Trace: do_exit+0x150/0x23c0 kernel/exit.c:909 do_group_exit+0x21b/0x2d0 kernel/exit.c:1118 get_signal+0x125c/0x1310 kernel/signal.c:3034 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:226 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:325 [inline] do_syscall_64+0x32d/0xf80 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f52eec3cfce 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:00007fff0fd2b458 EFLAGS: 00000246 ORIG_RAX: 000000000000003d RAX: fffffffffffffe00 RBX: 0000555579924500 RCX: 00007f52eec3cfce RDX: 0000000040000000 RSI: 00007fff0fd2b4fc RDI: ffffffffffffffff RBP: 00007fff0fd2b4fc R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000040 R13: 00005555799379f0 R14: 00000000000e2536 R15: 00007fff0fd2b550