syzbot


SYZFAIL: open of /dev/kcov failed

Status: upstream: reported on 2025/05/31 04:40
Reported-by: syzbot+d26dbed78df5a9959cc6@syzkaller.appspotmail.com
First crash: 231d, last: 5m

Sample crash report:
SYZFAIL: open of /dev/kcov failed
 (errno 2: No such file or directory)
SYZFAIL: open of /dev/kcov failed
 (errno 2: No such file or directory)
SYZFAIL: open of /dev/kcov failed
 (errno 2: No such file or directory)
SYZFAIL: open of /dev/kcov failed
 (errno 2: No such file or directory)
SYZFAIL: open of /dev/kcov failed
 (errno 2: No such file or directory)
SYZFAIL: open of /dev/kcov failed
 (errno 2: No such file or directory)
SYZFAIL: open of /dev/kcov failed
 (errno 2: No such file or directory)
SYZFAIL: open of /dev/kcov failed
 (errno 2: No such file or directory)
SYZFAIL: open of /dev/kcov failed
 (errno 2: No such file or directory)
SYZFAIL: open of /dev/kcov failed
 (errno 2: No such file or directory)
SYZFAIL: open of /dev/kcov failed
 (errno 2: No such file or directory)
SYZFAIL: open of /dev/kcov failed
 (errno 2: No such file or directory)
SYZFAIL: open of /dev/kcov failed
 (errno 2: No such file or directory)
SYZFAIL: open of /dev/kcov failed
 (errno 2: No such file or directory)
SYZFAIL: open of /dev/kcov failed
 (errno 2: No such file or directory)
SYZFAIL: open of /dev/kcov failed
 (errno 2: No such file or directory)
SYZFAIL: open of /dev/kcov failed
 (errno 2: No such file or directory)
SYZFAIL: open of /dev/kcov failed
 (errno 2: No such file or directory)
SYZFAIL: open of /dev/kcov failed
 (errno 2: No such file or directory)
SYZFAIL: open of /dev/kcov failed
 (errno 2: No such file or directory)
SYZFAIL: open of /dev/kcov failed
 (errno 2: No such file or directory)
SYZFAIL: repeatedly failed to execute the program
proc=4 req=45 state=1 status=67 (errno 9: Bad file descriptor)

Crashes (25640):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/01/18 03:30 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: open of /dev/kcov failed
2026/01/18 02:21 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: open of /dev/kcov failed
2026/01/18 01:59 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: open of /dev/kcov failed
2026/01/18 00:59 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: open of /dev/kcov failed
2026/01/17 23:53 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: open of /dev/kcov failed
2026/01/17 23:39 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: open of /dev/kcov failed
2026/01/17 22:36 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: open of /dev/kcov failed
2026/01/17 21:35 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: open of /dev/kcov failed
2026/01/17 21:01 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: open of /dev/kcov failed
2026/01/17 19:57 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: open of /dev/kcov failed
2026/01/17 18:51 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: open of /dev/kcov failed
2026/01/17 17:41 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: open of /dev/kcov failed
2026/01/17 17:10 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: open of /dev/kcov failed
2026/01/17 16:08 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: open of /dev/kcov failed
2026/01/17 15:42 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: open of /dev/kcov failed
2026/01/17 14:36 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: open of /dev/kcov failed
2026/01/17 13:33 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: open of /dev/kcov failed
2026/01/17 12:50 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: open of /dev/kcov failed
2026/01/17 11:49 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: open of /dev/kcov failed
2026/01/17 10:44 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: open of /dev/kcov failed
2026/01/17 09:37 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: open of /dev/kcov failed
2026/01/17 08:29 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: open of /dev/kcov failed
2026/01/17 07:14 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: open of /dev/kcov failed
2026/01/17 06:42 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: open of /dev/kcov failed
2026/01/17 05:35 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: open of /dev/kcov failed
2026/01/17 04:17 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: open of /dev/kcov failed
2026/01/17 03:37 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: open of /dev/kcov failed
2026/01/17 02:08 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: open of /dev/kcov failed
2026/01/17 01:06 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: open of /dev/kcov failed
2026/01/17 00:20 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: open of /dev/kcov failed
2026/01/16 23:08 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: open of /dev/kcov failed
2026/01/16 21:17 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: open of /dev/kcov failed
2026/01/16 20:14 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: open of /dev/kcov failed
2026/01/16 19:36 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: open of /dev/kcov failed
2026/01/16 18:18 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: open of /dev/kcov failed
2026/01/16 18:17 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: open of /dev/kcov failed
2026/01/16 17:09 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: open of /dev/kcov failed
2026/01/16 16:05 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: open of /dev/kcov failed
2026/01/16 15:00 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: open of /dev/kcov failed
2026/01/16 12:53 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: open of /dev/kcov failed
2026/01/16 12:40 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: open of /dev/kcov failed
2026/01/16 11:39 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: open of /dev/kcov failed
2025/05/31 04:40 freebsd-src f2a193a967e3 3d2f584d console log report ci-freebsd-main SYZFAIL: open of /dev/kcov failed
2026/01/16 22:19 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-i386 SYZFAIL: open of /dev/kcov failed
2026/01/16 14:01 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-i386 SYZFAIL: open of /dev/kcov failed
* Struck through repros no longer work on HEAD.