syzbot


SYZFAIL: tun: read failed (4)

Status: upstream: reported on 2025/12/06 16:26
Reported-by: syzbot+4394c382e90c8b58a3f7@syzkaller.appspotmail.com
First crash: 15d, last: 5m
Similar bugs (3)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
freebsd SYZFAIL: tun: read failed -1 syz 1040 1682d 1764d 0/2 closed as invalid on 2021/05/14 14:10
freebsd SYZFAIL: tun: read failed (2) -1 19 1516d 1549d 0/2 auto-closed as invalid on 2022/01/25 09:19
freebsd SYZFAIL: tun: read failed (3) -1 1 1385d 1385d 0/2 auto-closed as invalid on 2022/06/05 15:58

Sample crash report:
SYZFAIL: tun: read failed
SYZFAIL: tun: read failed
 (errno 6: Device not configured)
 (errno 6: Device not configured)
SYZFAIL: child failed
 (errno 0: No error: 0)
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=2 req=83 state=1 status=67 (errno 9: Bad file descriptor)

Crashes (505):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/12/21 21:08 freebsd-src 117306dc606b e14dbeb9 console log report ci-freebsd-main SYZFAIL: tun: read failed
2025/12/21 19:58 freebsd-src 117306dc606b e14dbeb9 console log report ci-freebsd-main SYZFAIL: tun: read failed
2025/12/21 18:13 freebsd-src 117306dc606b e14dbeb9 console log report ci-freebsd-main SYZFAIL: tun: read failed
2025/12/21 17:05 freebsd-src 117306dc606b e14dbeb9 console log report ci-freebsd-main SYZFAIL: tun: read failed
2025/12/21 15:23 freebsd-src 117306dc606b e14dbeb9 console log report ci-freebsd-main SYZFAIL: tun: read failed
2025/12/21 14:21 freebsd-src 117306dc606b e14dbeb9 console log report ci-freebsd-main SYZFAIL: tun: read failed
2025/12/21 13:01 freebsd-src 117306dc606b e14dbeb9 console log report ci-freebsd-main SYZFAIL: tun: read failed
2025/12/21 12:19 freebsd-src 117306dc606b e14dbeb9 console log report ci-freebsd-main SYZFAIL: tun: read failed
2025/12/21 10:59 freebsd-src 117306dc606b e14dbeb9 console log report ci-freebsd-main SYZFAIL: tun: read failed
2025/12/21 10:10 freebsd-src 117306dc606b e14dbeb9 console log report ci-freebsd-main SYZFAIL: tun: read failed
2025/12/21 08:26 freebsd-src dd5a48f95786 e14dbeb9 console log report ci-freebsd-main SYZFAIL: tun: read failed
2025/12/21 07:25 freebsd-src dd5a48f95786 e14dbeb9 console log report ci-freebsd-main SYZFAIL: tun: read failed
2025/12/21 06:10 freebsd-src dd5a48f95786 e14dbeb9 console log report ci-freebsd-main SYZFAIL: tun: read failed
2025/12/21 04:31 freebsd-src dd5a48f95786 e14dbeb9 console log report ci-freebsd-main SYZFAIL: tun: read failed
2025/12/21 03:27 freebsd-src dd5a48f95786 e14dbeb9 console log report ci-freebsd-main SYZFAIL: tun: read failed
2025/12/21 02:04 freebsd-src dd5a48f95786 e14dbeb9 console log report ci-freebsd-main SYZFAIL: tun: read failed
2025/12/21 01:01 freebsd-src dd5a48f95786 e14dbeb9 console log report ci-freebsd-main SYZFAIL: tun: read failed
2025/12/20 23:26 freebsd-src dd5a48f95786 e14dbeb9 console log report ci-freebsd-main SYZFAIL: tun: read failed
2025/12/20 21:58 freebsd-src dd5a48f95786 e14dbeb9 console log report ci-freebsd-main SYZFAIL: tun: read failed
2025/12/20 21:51 freebsd-src dd5a48f95786 e14dbeb9 console log report ci-freebsd-main SYZFAIL: tun: read failed
2025/12/20 20:49 freebsd-src dd5a48f95786 e14dbeb9 console log report ci-freebsd-main SYZFAIL: tun: read failed
2025/12/20 18:57 freebsd-src 7f39d05b67ae e14dbeb9 console log report ci-freebsd-main SYZFAIL: tun: read failed
2025/12/20 17:15 freebsd-src 7f39d05b67ae e14dbeb9 console log report ci-freebsd-main SYZFAIL: tun: read failed
2025/12/20 15:50 freebsd-src 7f39d05b67ae e14dbeb9 console log report ci-freebsd-main SYZFAIL: tun: read failed
2025/12/20 15:29 freebsd-src 7f39d05b67ae e14dbeb9 console log report ci-freebsd-main SYZFAIL: tun: read failed
2025/12/20 14:28 freebsd-src 7f39d05b67ae e14dbeb9 console log report ci-freebsd-main SYZFAIL: tun: read failed
2025/12/20 12:18 freebsd-src 7f39d05b67ae e14dbeb9 console log report ci-freebsd-main SYZFAIL: tun: read failed
2025/12/20 09:49 freebsd-src 7f39d05b67ae e14dbeb9 console log report ci-freebsd-main SYZFAIL: tun: read failed
2025/12/20 09:47 freebsd-src 7f39d05b67ae e14dbeb9 console log report ci-freebsd-main SYZFAIL: tun: read failed
2025/12/20 07:48 freebsd-src 7f39d05b67ae e14dbeb9 console log report ci-freebsd-main SYZFAIL: tun: read failed
2025/12/20 06:23 freebsd-src 7f39d05b67ae e14dbeb9 console log report ci-freebsd-main SYZFAIL: tun: read failed
2025/12/20 05:22 freebsd-src 7f39d05b67ae e14dbeb9 console log report ci-freebsd-main SYZFAIL: tun: read failed
2025/12/20 05:22 freebsd-src 7f39d05b67ae e14dbeb9 console log report ci-freebsd-main SYZFAIL: tun: read failed
2025/12/20 03:44 freebsd-src 7f39d05b67ae e14dbeb9 console log report ci-freebsd-main SYZFAIL: tun: read failed
2025/12/20 02:35 freebsd-src 1efb6541c677 e14dbeb9 console log report ci-freebsd-main SYZFAIL: tun: read failed
2025/12/20 00:24 freebsd-src 1efb6541c677 e14dbeb9 console log report ci-freebsd-main SYZFAIL: tun: read failed
2025/12/19 23:20 freebsd-src 1efb6541c677 e14dbeb9 console log report ci-freebsd-main SYZFAIL: tun: read failed
2025/12/19 21:19 freebsd-src 1efb6541c677 e14dbeb9 console log report ci-freebsd-main SYZFAIL: tun: read failed
2025/12/19 19:01 freebsd-src 1efb6541c677 e14dbeb9 console log report ci-freebsd-main SYZFAIL: tun: read failed
2025/12/19 17:39 freebsd-src 1efb6541c677 e14dbeb9 console log report ci-freebsd-main SYZFAIL: tun: read failed
2025/12/19 16:26 freebsd-src 1efb6541c677 e14dbeb9 console log report ci-freebsd-main SYZFAIL: tun: read failed
2025/12/19 16:26 freebsd-src 1efb6541c677 e14dbeb9 console log report ci-freebsd-main SYZFAIL: tun: read failed
2025/12/19 15:20 freebsd-src 1efb6541c677 e14dbeb9 console log report ci-freebsd-main SYZFAIL: tun: read failed
2025/12/06 16:25 freebsd-src ced74610217f cee4cb10 console log report ci-freebsd-main SYZFAIL: tun: read failed
2025/12/20 01:29 freebsd-src 2804461adfc6 e14dbeb9 console log report ci-freebsd-i386 SYZFAIL: tun: read failed
2025/12/19 19:38 freebsd-src 2804461adfc6 e14dbeb9 console log report ci-freebsd-i386 SYZFAIL: tun: read failed
* Struck through repros no longer work on HEAD.