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

Status: auto-closed as invalid on 2022/04/02 23:36
Reported-by: syzbot+fe9613b38696de8b0271@syzkaller.appspotmail.com
First crash: 1862d, last: 1760d
▶ ▼ 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 1d08h 23d 0/1 premoderation: reported on 2026/09/05 20:00
linux-4.19 SYZFAIL: open of /sys/kernel/debug/kcov failed -1 1 1909d 1909d 0/1 auto-closed as invalid on 2021/11/04 08:11
android-5-10 SYZFAIL: open of /sys/kernel/debug/kcov failed -1 239 6d11h 30d 0/2 premoderation: reported on 2026/08/29 11:39
linux-6.6 SYZFAIL: open of /sys/kernel/debug/kcov failed -1 56 4d19h 23d 0/2 upstream: reported on 2026/09/05 08:42
linux-6.1 SYZFAIL: open of /sys/kernel/debug/kcov failed -1 44 3d01h 24d 0/3 upstream: reported on 2026/09/05 05:07
android-5-15 SYZFAIL: open of /sys/kernel/debug/kcov failed -1 43 728d 804d 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 3d04h 47d 0/2 premoderation: reported on 2026/08/13 04:53
android-5-15 SYZFAIL: open of /sys/kernel/debug/kcov failed (3) -1 1 527d 527d 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 5d00h 24d 0/2 premoderation: reported on 2026/09/05 02:32
linux-4.19 SYZFAIL: open of /sys/kernel/debug/kcov failed (2) -1 4 1760d 1760d 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 663d 663d 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 6d19h 23d 0/3 upstream: reported on 2026/09/05 12:46

Sample crash report:
2021/12/03 23:35:23 executor 3 failed 11 times:
executor 3: exit status 67
SYZFAIL: open of /sys/kernel/debug/kcov failed
 (errno 24: Too many open files)
SYZFAIL: child failed
 (errno 0: Success)
loop exited with status 67

Crashes (6):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2021/12/03 23:35 android12-5.4 97b7ffb32f29 c7c20675 .config console log report info ci2-android-5-4-kasan SYZFAIL: open of /sys/kernel/debug/kcov failed
2021/12/03 19:33 android12-5.4 97b7ffb32f29 c7c20675 .config console log report info ci2-android-5-4-kasan SYZFAIL: open of /sys/kernel/debug/kcov failed
2021/12/03 18:30 android12-5.4 97b7ffb32f29 c7c20675 .config console log report info ci2-android-5-4-kasan SYZFAIL: open of /sys/kernel/debug/kcov failed
2021/12/03 16:19 android12-5.4 97b7ffb32f29 c7c20675 .config console log report info ci2-android-5-4-kasan SYZFAIL: open of /sys/kernel/debug/kcov failed
2021/12/03 13:32 android12-5.4 97b7ffb32f29 c7c20675 .config console log report info ci2-android-5-4-kasan SYZFAIL: open of /sys/kernel/debug/kcov failed
2021/08/24 04:02 android12-5.4 3ce13296e72d b599f2fc .config console log report info ci2-android-5-4-kasan SYZFAIL: open of /sys/kernel/debug/kcov failed
* Struck through repros no longer work on HEAD.