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BUG: workqueue function defense_work_handler changed kcov_mode from NUM to NUM

Status: moderation: reported on 2026/05/04 06:07
Reported-by: syzbot+e6686317bd9fe911591a@syzkaller.appspotmail.com
First crash: 7d18h, last: 7d18h
▶ ▼ Discussions (2)
Title Replies (including bot) Last reply
[PATCH] kcov: fix potential kcov_mode corruption under CONFIG_PREEMPT_RT 2 (2) 2026/05/06 11:55
[PATCH (draft)] kcov: fix potential kcov_mode corruption under CONFIG_PREEMPT_RT 2 (2) 2026/05/04 15:39

Sample crash report:
BUG: workqueue function defense_work_handler changed kcov_mode from 0 to 2

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/04/30 06:00 linux-next 0787c45ea08a 005438fc .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce BUG: workqueue function defense_work_handler changed kcov_mode from NUM to NUM
* Struck through repros no longer work on HEAD.