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

Status: premoderation: reported syz repro on 2023/11/09 20:06
Bug presence: origin:upstream
[Documentation on labels]
Reported-by: syzbot+6e6c465d65a116c3e69a@syzkaller.appspotmail.com
First crash: 377d, last: 28d
Cause bisection: failed (error log, bisect log)
  
▶ ▼ Bug presence (2)
Date Name Commit Repro Result
2023/11/09 lts (merge base) 52a953d0934b C [report] SYZFAIL: tun: can't open /dev/net/tun
2023/11/09 upstream (ToT) 6bc986ab839c C [report] SYZFAIL: tun: can't open /dev/net/tun
▶ ▼ Similar bugs (7)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-5-10 SYZFAIL: tun: can't open /dev/net/tun 1 1110d 1110d 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 10 12d 377d 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 25 13d 997d 0/2 premoderation: reported syz repro on 2022/02/27 16:56
android-54 SYZFAIL: tun: can't open /dev/net/tun syz 7 11d 1186d 0/2 upstream: reported syz repro on 2021/08/23 10:35
linux-4.19 SYZFAIL: tun: can't open /dev/net/tun syz error 3 997d 1139d 0/1 upstream: reported syz repro on 2021/10/09 05:44
upstream SYZFAIL: tun: can't open /dev/net/tun 1 1292d 1292d 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 52d 356d 3/3 fixed on 2024/11/01 17:06
▶ ▼ Last patch testing requests (2)
Created Duration User Patch Repo Result
2024/10/24 09:28 1h22m retest repro android14-6.1 report log
2024/08/06 22:08 13m retest repro android14-6.1 report log
▶ ▼ Fix bisection attempts (3)
Created Duration User Patch Repo Result
2024/03/19 19:09 1h13m bisect fix android14-6.1 OK (0) job log log
2024/01/25 20:39 41m bisect fix android14-6.1 OK (0) job log log
2023/12/26 11:27 40m bisect fix android14-6.1 OK (0) job log log

Sample crash report:
2023/11/09 20:02:08 [FATAL] executor failed 11 times: executor 0: exit status 67 err exit status 67
SYZFAIL: tun: can't open /dev/net/tun
 (errno 2: No such file or directory)
loop exited with status 67
exit status 67

SYZFAIL: tun: can't open /dev/net/tun
 (errno 2: No such file or directory)
loop exited with status 67
exit status 67

Crashes (14):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/11/09 20:05 android14-6.1 9d6ac9dc6ac8 56230772 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-android-6-1 SYZFAIL: tun: can't open /dev/net/tun
2024/10/09 05:41 android14-6.1 8d298374716d 402f1df0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf SYZFAIL: tun: can't open /dev/net/tun
2024/10/07 00:22 android14-6.1 d4dab27b9d1c d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf SYZFAIL: tun: can't open /dev/net/tun
2024/09/30 21:15 android14-6.1 5162f9a67b7d bbd4e0a4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf SYZFAIL: tun: can't open /dev/net/tun
2024/09/29 18:31 android14-6.1 110595418159 ba29ff75 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf SYZFAIL: tun: can't open /dev/net/tun
2024/09/27 13:08 android14-6.1 5a912daf8731 9314348a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf SYZFAIL: tun: can't open /dev/net/tun
2024/09/21 03:31 android14-6.1 532fad0092e5 6f888b75 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 SYZFAIL: tun: can't open /dev/net/tun
2024/09/20 00:37 android14-6.1 8a268cb981a6 6f888b75 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf SYZFAIL: tun: can't open /dev/net/tun
2024/09/18 08:12 android14-6.1 47871c381d5f c673ca06 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf SYZFAIL: tun: can't open /dev/net/tun
2024/08/20 11:17 android14-6.1 edca080b95df 9f0ab3fb .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf SYZFAIL: tun: can't open /dev/net/tun
2024/08/12 19:15 android14-6.1 79436849ef1d 842184b3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 SYZFAIL: tun: can't open /dev/net/tun
2024/08/12 06:26 android14-6.1 79436849ef1d 6f4edef4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf SYZFAIL: tun: can't open /dev/net/tun
2024/06/30 13:44 android14-6.1 76d91af9daec 757f06b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf SYZFAIL: tun: can't open /dev/net/tun
2024/06/30 06:21 android14-6.1 76d91af9daec 757f06b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf SYZFAIL: tun: can't open /dev/net/tun
* Struck through repros no longer work on HEAD.