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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: 852d, last: 3h05m
▶ ▼ 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 1542d 1735d 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 (1551):
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
2025/11/23 13:09 freebsd-src 12ec49d8fac2 4fb8ef37 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2025/11/22 23:11 freebsd-src aa2468493e35 4fb8ef37 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2025/11/22 09:04 freebsd-src a8740ba860bf 4fb8ef37 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2025/11/21 13:40 freebsd-src 8158b813d90f 52ed5c96 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2025/11/21 12:15 freebsd-src 8158b813d90f 52ed5c96 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2025/11/21 08:13 freebsd-src a4aa7df767e0 280ea308 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2025/11/20 21:12 freebsd-src 896dc30bc9bc 2cc4c24a console log report ci-freebsd-main SYZFAIL: tun: can't open device
2025/11/20 14:18 freebsd-src 896dc30bc9bc 2cc4c24a console log report ci-freebsd-main SYZFAIL: tun: can't open device
2025/11/20 00:28 freebsd-src f44ac8cc9c10 26ee5237 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2025/11/19 16:27 freebsd-src 9b0102837e30 82d7b894 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2025/11/19 12:31 freebsd-src 9b0102837e30 82d7b894 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2025/11/18 09:50 freebsd-src fb709935d64d ef766cd7 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2025/11/18 05:07 freebsd-src fb709935d64d ef766cd7 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2025/11/18 04:01 freebsd-src fb709935d64d ef766cd7 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2025/11/17 22:48 freebsd-src fb709935d64d ef766cd7 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2025/11/17 18:32 freebsd-src 3c5ca68b9b7c c1ade9dd console log report ci-freebsd-main SYZFAIL: tun: can't open device
2025/11/17 15:16 freebsd-src 3c5ca68b9b7c c1ade9dd console log report ci-freebsd-main SYZFAIL: tun: can't open device
2025/11/17 13:26 freebsd-src 3c5ca68b9b7c c1ade9dd console log report ci-freebsd-main SYZFAIL: tun: can't open device
2025/11/17 06:36 freebsd-src 474d4707e607 f7988ea4 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2025/11/17 03:54 freebsd-src 474d4707e607 f7988ea4 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2025/11/17 01:28 freebsd-src 474d4707e607 f7988ea4 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2025/11/17 00:18 freebsd-src 474d4707e607 f7988ea4 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2025/11/16 21:37 freebsd-src 474d4707e607 f7988ea4 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2025/11/16 19:12 freebsd-src 474d4707e607 f7988ea4 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2025/11/16 14:50 freebsd-src 07e6bfeae5a1 f7988ea4 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2025/11/16 13:42 freebsd-src 07e6bfeae5a1 f7988ea4 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2025/11/16 12:29 freebsd-src 07e6bfeae5a1 f7988ea4 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2025/11/16 07:51 freebsd-src 07e6bfeae5a1 f7988ea4 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2025/11/16 05:33 freebsd-src 07e6bfeae5a1 f7988ea4 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2025/11/16 04:08 freebsd-src 0a8ecca4e315 f7988ea4 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2025/11/15 22:10 freebsd-src 0a8ecca4e315 f7988ea4 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2025/11/15 18:55 freebsd-src 0a8ecca4e315 f7988ea4 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2025/11/15 15:51 freebsd-src 0a8ecca4e315 f7988ea4 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2025/11/15 09:55 freebsd-src e96359d111aa f7988ea4 console log report ci-freebsd-main SYZFAIL: tun: can't open device
2025/11/23 15:50 freebsd-src 5cc34a83e1cc 4fb8ef37 console log report ci-freebsd-i386 SYZFAIL: tun: can't open device
2025/11/23 02:11 freebsd-src 12ec49d8fac2 4fb8ef37 console log report ci-freebsd-i386 SYZFAIL: tun: can't open device
2025/11/22 12:32 freebsd-src aa2468493e35 4fb8ef37 console log report ci-freebsd-i386 SYZFAIL: tun: can't open device
2025/11/21 22:50 freebsd-src a8740ba860bf 4fb8ef37 console log report ci-freebsd-i386 SYZFAIL: tun: can't open device
2025/11/21 11:12 freebsd-src 8158b813d90f 52ed5c96 console log report ci-freebsd-i386 SYZFAIL: tun: can't open device
2025/11/20 22:34 freebsd-src a4aa7df767e0 280ea308 console log report ci-freebsd-i386 SYZFAIL: tun: can't open device
2025/11/20 11:20 freebsd-src 896dc30bc9bc 2cc4c24a console log report ci-freebsd-i386 SYZFAIL: tun: can't open device
2025/11/20 11:20 freebsd-src 896dc30bc9bc 2cc4c24a console log report ci-freebsd-i386 SYZFAIL: tun: can't open device
2025/11/19 22:21 freebsd-src f44ac8cc9c10 26ee5237 console log report ci-freebsd-i386 SYZFAIL: tun: can't open device
2025/11/19 09:50 freebsd-src 9b0102837e30 82d7b894 console log report ci-freebsd-i386 SYZFAIL: tun: can't open device
2025/11/19 02:22 freebsd-src 0628400590e0 ef766cd7 console log report ci-freebsd-i386 SYZFAIL: tun: can't open device
2025/11/18 12:39 freebsd-src 8012c61bef3b ef766cd7 console log report ci-freebsd-i386 SYZFAIL: tun: can't open device
2025/11/17 22:56 freebsd-src fb709935d64d ef766cd7 console log report ci-freebsd-i386 SYZFAIL: tun: can't open device
2025/11/16 19:56 freebsd-src 1aa241b4ee65 f7988ea4 console log report ci-freebsd-i386 SYZFAIL: tun: can't open device
* Struck through repros no longer work on HEAD.