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SYZFAIL: tun: can't open /dev/net/tun

Status: upstream: reported syz repro on 2021/10/09 05:44
Reported-by: syzbot+8e7ab08813277a9ae8d8@syzkaller.appspotmail.com
First crash: 1316d, last: 1173d
Fix bisection: failed (error log, bisect log)
  
▶ ▼ Similar bugs (8)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-5-10 SYZFAIL: tun: can't open /dev/net/tun 1 1287d 1287d 0/2 auto-closed as invalid on 2022/02/05 06:28
android-5-15 SYZFAIL: tun: can't open /dev/net/tun origin:upstream syz 11 27d 554d 0/2 premoderation: reported syz repro on 2023/11/10 07:03
android-5-10 SYZFAIL: tun: can't open /dev/net/tun (2) syz error error 35 3d13h 1174d 0/2 premoderation: reported syz repro on 2022/02/27 16:56
android-54 SYZFAIL: tun: can't open /dev/net/tun syz 18 2d03h 1363d 0/2 upstream: reported syz repro on 2021/08/23 10:35
android-6-1 SYZFAIL: tun: can't open /dev/net/tun origin:upstream syz error 21 24d 554d 0/2 premoderation: reported syz repro on 2023/11/09 20:06
linux-5.15 SYZFAIL: tun: can't open /dev/net/tun 1 169d 169d 0/3 auto-obsoleted due to no activity on 2025/03/08 18:06
upstream SYZFAIL: tun: can't open /dev/net/tun 1 1469d 1469d 0/28 auto-closed as invalid on 2021/08/06 17:44
linux-6.1 SYZFAIL: tun: can't open /dev/net/tun origin:upstream syz done 1 229d 533d 3/3 fixed on 2024/11/01 17:06

Sample crash report:
2022/02/27 17:07:40 executor failed 11 times: executor 5: failed to write control pipe: write |1: broken pipe
SYZFAIL: tun: can't open /dev/net/tun
 (errno 2: No such file or directory)
loop exited with status 67

Crashes (3):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2022/02/27 17:27 linux-4.19.y 3f8a27f9e27b 45a13a73 .config console log report syz ci2-linux-4-19 SYZFAIL: tun: can't open /dev/net/tun
2021/10/09 05:44 linux-4.19.y 6db10b4d5efd efe0f24d .config console log report syz ci2-linux-4-19 SYZFAIL: tun: can't open /dev/net/tun
2022/02/28 14:19 linux-4.19.y 3f8a27f9e27b 45a13a73 .config console log report info ci2-linux-4-19 SYZFAIL: tun: can't open /dev/net/tun
* Struck through repros no longer work on HEAD.