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SYZFAIL: tun: can't open device (2)

Status: upstream: reported syz repro on 2023/07/25 01:05
Reported-by: syzbot+cff1d829d8ac97ee9d4f@syzkaller.appspotmail.com
First crash: 946d, last: 30d
▶ ▼ Similar bugs (1)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
freebsd SYZFAIL: tun: can't open device -1 syz 159 1636d 1829d 0/2 closed as invalid on 2022/04/17 17:01

Sample crash report:
SYZFAIL: tun: can't open device
device=/dev/tap0 (errno 16: Device busy)

maxproc limit exceeded by uid 0 (pid 11318); see tuning(7) and login.conf(5)
maxproc limit exceeded by uid 0 (pid 11817); see tuning(7) and login.conf(5)
maxproc limit exceeded by uid 0 (pid 10432); see tuning(7) and login.conf(5)
maxproc limit exceeded by uid 0 (pid 10432); see tuning(7) and login.conf(5)


FreeBSD/amd64 (ci-freebsd-main-7.c.syzkaller.internal) (ttyu0)

login:

Crashes (2021):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/09/09 02:33 freebsd-src 3ac7664774ad 6654cf89 console log report syz ci-freebsd-main SYZFAIL: tun: can't open device
2023/07/25 01:03 freebsd-src 92103adbebd9 9a0ddda3 console log report syz ci-freebsd-main SYZFAIL: tun: can't open device
2023/08/15 09:29 freebsd-src d29b95ecc0d0 39990d51 console log report syz ci-freebsd-i386 SYZFAIL: tun: can't open device
2026/01/25 18:57 freebsd-src a3394b6a23fb 40acda8a console log report ci-freebsd-main SYZFAIL: tun: can't open device
2026/01/25 00:49 freebsd-src a3394b6a23fb 40acda8a console log report ci-freebsd-main SYZFAIL: tun: can't open device
2026/01/24 21:35 freebsd-src a3394b6a23fb 40acda8a console log report ci-freebsd-main SYZFAIL: tun: can't open device
2026/01/24 17:58 freebsd-src a3394b6a23fb 40acda8a console log report ci-freebsd-main SYZFAIL: tun: can't open device
2026/01/23 19:51 freebsd-src a3394b6a23fb 319d7797 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2026/01/23 17:34 freebsd-src a3394b6a23fb 319d7797 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2026/01/23 04:08 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2026/01/22 19:32 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2026/01/22 18:06 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2026/01/22 14:04 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2026/01/21 23:58 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2026/01/21 15:03 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2026/01/21 10:20 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2026/01/21 05:41 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2026/01/21 00:12 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2026/01/20 23:09 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2026/01/20 20:08 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2026/01/20 16:33 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2026/01/20 14:31 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2026/01/20 11:42 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2026/01/20 06:16 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2026/01/20 03:38 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2026/01/20 02:26 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2026/01/19 21:46 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2026/01/19 20:37 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2026/01/19 19:20 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2026/01/19 12:58 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2026/01/18 11:53 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2026/01/18 08:59 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2026/01/18 05:29 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2026/01/17 14:04 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2026/01/17 09:00 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2026/01/17 06:31 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2026/01/17 00:48 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2026/01/16 20:14 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2026/01/16 18:39 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2026/01/16 01:38 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2026/01/15 18:56 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2026/01/15 14:43 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2026/01/15 12:17 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2026/01/15 04:09 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2026/01/21 11:51 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-i386 SYZFAIL: tun: can't open device
2026/01/17 19:10 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-i386 SYZFAIL: tun: can't open device
* Struck through repros no longer work on HEAD.