SYZFAIL: open of /sys/kernel/debug/kcov failed (2)

Status: auto-closed as invalid on 2022/04/02 14:00
Reported-by: syzbot+26c05f3d0e9b2e7f6946@syzkaller.appspotmail.com
First crash: 1753d, last: 1753d
▶ ▼ 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 11 5d15h 16d 0/1 premoderation: reported on 2026/09/05 20:00
linux-4.19 SYZFAIL: open of /sys/kernel/debug/kcov failed -1 1 1902d 1902d 0/1 auto-closed as invalid on 2021/11/04 08:11
android-5-10 SYZFAIL: open of /sys/kernel/debug/kcov failed -1 222 1h12m 23d 0/2 premoderation: reported on 2026/08/29 11:39
linux-6.6 SYZFAIL: open of /sys/kernel/debug/kcov failed -1 47 1d22h 16d 0/2 upstream: reported on 2026/09/05 08:42
linux-6.1 SYZFAIL: open of /sys/kernel/debug/kcov failed -1 36 3d14h 16d 0/3 upstream: reported on 2026/09/05 05:07
android-5-15 SYZFAIL: open of /sys/kernel/debug/kcov failed -1 43 721d 797d 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 -1 282 40m 39d 0/2 premoderation: reported on 2026/08/13 04:53
android-54 SYZFAIL: open of /sys/kernel/debug/kcov failed -1 6 1753d 1854d 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 520d 520d 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) -1 115 8h28m 17d 0/2 premoderation: reported on 2026/09/05 02:32
android-5-15 SYZFAIL: open of /sys/kernel/debug/kcov failed (2) -1 1 656d 656d 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 34 3d15h 16d 0/3 upstream: reported on 2026/09/05 12:46

Sample crash report:
2021/12/03 13:59:46 executor 0 failed 11 times:
executor 0: 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 (4):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2021/12/03 13:59 linux-4.19.y 3f8a27f9e27b c7c20675 .config console log report info ci2-linux-4-19 SYZFAIL: open of /sys/kernel/debug/kcov failed
2021/12/03 13:48 linux-4.19.y 3f8a27f9e27b c7c20675 .config console log report info ci2-linux-4-19 SYZFAIL: open of /sys/kernel/debug/kcov failed
2021/12/03 12:51 linux-4.19.y 3f8a27f9e27b c7c20675 .config console log report info ci2-linux-4-19 SYZFAIL: open of /sys/kernel/debug/kcov failed
2021/12/03 12:35 linux-4.19.y 3f8a27f9e27b c7c20675 .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.