syzbot


SYZFAIL: tun: ioctl(TUNSETIFF) failed

Status: upstream: reported on 2025/10/06 05:00
Reported-by: syzbot+bf371e84328aea45f0cb@syzkaller.appspotmail.com
First crash: 3d16h, last: 3d16h
Similar bugs (12)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-5-15 SYZFAIL: tun: ioctl(TUNSETIFF) failed -1 96 3d17h 466d 0/2 premoderation: reported on 2024/06/30 02:15
android-54 SYZFAIL: tun: ioctl(TUNSETIFF) failed -1 1 1424d 1424d 0/2 closed as invalid on 2021/11/16 09:11
linux-5.15 SYZFAIL: tun: ioctl(TUNSETIFF) failed -1 10 109d 339d 0/3 auto-obsoleted due to no activity on 2025/09/30 19:38
android-6-12 SYZFAIL: tun: ioctl(TUNSETIFF) failed -1 49 1d10h 112d 0/1 premoderation: reported on 2025/06/19 19:57
android-54 SYZFAIL: tun: ioctl(TUNSETIFF) failed (4) -1 75 140d 253d 0/2 auto-obsoleted due to no activity on 2025/07/11 21:09
android-54 SYZFAIL: tun: ioctl(TUNSETIFF) failed (3) -1 3 467d 471d 0/2 auto-obsoleted due to no activity on 2024/09/27 11:34
android-5-10 SYZFAIL: tun: ioctl(TUNSETIFF) failed -1 7 1280d 1438d 0/2 auto-closed as invalid on 2022/07/07 13:54
android-6-1 SYZFAIL: tun: ioctl(TUNSETIFF) failed -1 109 1d09h 459d 0/2 premoderation: reported on 2024/07/07 21:01
android-54 SYZFAIL: tun: ioctl(TUNSETIFF) failed (2) -1 3 1283d 1301d 0/2 auto-closed as invalid on 2022/08/03 05:52
linux-6.1 SYZFAIL: tun: ioctl(TUNSETIFF) failed (2) -1 14 4d00h 200d 0/3 upstream: reported on 2025/03/23 07:07
android-5-10 SYZFAIL: tun: ioctl(TUNSETIFF) failed (2) -1 482 3d12h 471d 0/2 premoderation: reported on 2024/06/25 10:31
linux-6.1 SYZFAIL: tun: ioctl(TUNSETIFF) failed -1 1 304d 304d 0/3 auto-obsoleted due to no activity on 2025/03/18 21:55

Sample crash report:
SYZFAIL: tun: ioctl(TUNSETIFF) failed
 (errno 1: Operation not permitted)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
 (errno 1: Operation not permitted)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
 (errno 1: Operation not permitted)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
 (errno 1: Operation not permitted)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
 (errno 1: Operation not permitted)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
 (errno 1: Operation not permitted)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
 (errno 1: Operation not permitted)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
 (errno 1: Operation not permitted)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
 (errno 1: Operation not permitted)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
 (errno 1: Operation not permitted)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
 (errno 1: Operation not permitted)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
 (errno 1: Operation not permitted)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
 (errno 1: Operation not permitted)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
 (errno 1: Operation not permitted)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
 (errno 1: Operation not permitted)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
 (errno 1: Operation not permitted)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
 (errno 1: Operation not permitted)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
 (errno 1: Operation not permitted)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
 (errno 1: Operation not permitted)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
 (errno 1: Operation not permitted)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
 (errno 1: Operation not permitted)
loop exited with status 67
SYZFAIL: repeatedly failed to execute the program
proc=4 req=2951 state=3 status=67 (errno 32: Broken pipe)

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/10/06 04:59 linux-6.6.y f34f16e5c632 49379ee0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan SYZFAIL: tun: ioctl(TUNSETIFF) failed
* Struck through repros no longer work on HEAD.