SYZFAIL: open of /sys/kernel/debug/kcov failed

Status: auto-closed as invalid on 2021/11/04 08:11
Reported-by: syzbot+1ba21880b6897facf4ca@syzkaller.appspotmail.com
First crash: 1923d, last: 1923d
▶ ▼ Similar bugs (12)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-6-12 SYZFAIL: open of /sys/kernel/debug/kcov failed -1 12 14d 36d 0/1 premoderation: reported on 2026/09/05 20:00
android-5-10 SYZFAIL: open of /sys/kernel/debug/kcov failed -1 239 19d 43d 0/2 premoderation: reported on 2026/08/29 11:39
linux-6.6 SYZFAIL: open of /sys/kernel/debug/kcov failed -1 56 17d 37d 0/2 upstream: reported on 2026/09/05 08:42
linux-6.1 SYZFAIL: open of /sys/kernel/debug/kcov failed -1 46 13d 37d 0/3 upstream: reported on 2026/09/05 05:07
android-5-15 SYZFAIL: open of /sys/kernel/debug/kcov failed -1 43 741d 817d 0/2 auto-obsoleted due to no activity on 2024/11/19 12:38
android-6-1 SYZFAIL: open of /sys/kernel/debug/kcov failed -1 330 16d 60d 0/2 premoderation: reported on 2026/08/13 04:53
android-54 SYZFAIL: open of /sys/kernel/debug/kcov failed -1 6 1773d 1875d 0/2 auto-closed as invalid on 2022/04/02 23:36
android-5-15 SYZFAIL: open of /sys/kernel/debug/kcov failed (3) -1 1 540d 540d 0/2 auto-obsoleted due to no activity on 2025/07/18 18:42
android-5-15 SYZFAIL: open of /sys/kernel/debug/kcov failed (4) -1 132 18d 37d 0/2 premoderation: reported on 2026/09/05 02:32
linux-4.19 SYZFAIL: open of /sys/kernel/debug/kcov failed (2) -1 4 1773d 1773d 0/1 auto-closed as invalid on 2022/04/02 14:00
android-5-15 SYZFAIL: open of /sys/kernel/debug/kcov failed (2) -1 1 676d 676d 0/2 auto-obsoleted due to no activity on 2025/03/04 17:20
linux-5.15 SYZFAIL: open of /sys/kernel/debug/kcov failed -1 36 19d 36d 0/3 upstream: reported on 2026/09/05 12:46

Sample crash report:
2021/07/07 08:10:39 executor 3 failed 11 times:
executor 3: EOF
SYZFAIL: open of /sys/kernel/debug/kcov failed
 (errno 13: Permission denied)

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2021/07/07 08:10 linux-4.19.y 9f84340f012e 4846d5c1 .config console log report info ci2-linux-4-19 SYZFAIL: open of /sys/kernel/debug/kcov failed
* Struck through repros no longer work on HEAD.