[v5.15] SYZFAIL: tun: ioctl(TUNSETIFF) failed

Hello,

syzbot found the following issue on:

HEAD commit: 72244eab0dad Linux 5.15.170
git tree: linux-5.15.y
console output: https://syzkaller.appspot.com/x/log.txt?x=14bf4d5f980000
kernel config: https://syzkaller.appspot.com/x/.config?x=d85ac7994f3a5f02
dashboard link: https://syzkaller.appspot.com/bug?extid=6789dead30caa2b6988f
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
userspace arch: arm64

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/a97549f813ef/disk-72244eab.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/399cdfbc4562/vmlinux-72244eab.xz
kernel image: https://storage.googleapis.com/syzbot-assets/a7c1fce94960/Image-72244eab.gz.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: [email protected]

SYZFAIL: tun: ioctl(TUNSETIFF) failed
(errno 25: Inappropriate ioctl for device)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
(errno 25: Inappropriate ioctl for device)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
(errno 25: Inappropriate ioctl for device)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
(errno 25: Inappropriate ioctl for device)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
(errno 25: Inappropriate ioctl for device)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
(errno 25: Inappropriate ioctl for device)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
(errno 25: Inappropriate ioctl for device)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
(errno 25: Inappropriate ioctl for device)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
(errno 25: Inappropriate ioctl for device)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
(errno 25: Inappropriate ioctl for device)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
(errno 25: Inappropriate ioctl for device)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
(errno 25: Inappropriate ioctl for device)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
(errno 25: Inappropriate ioctl for device)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
(errno 25: Inappropriate ioctl for device)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
(errno 25: Inappropriate ioctl for device)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
(errno 25: Inappropriate ioctl for device)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
(errno 25: Inappropriate ioctl for device)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
(errno 25: Inappropriate ioctl for device)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
(errno 25: Inappropriate ioctl for device)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
(errno 25: Inappropriate ioctl for device)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
(errno 25: Inappropriate ioctl for device)
loop exited with status 67
SYZFAIL: repeatedly failed to execute the program
proc=7 req=113 state=3 status=67 (errno 32: Broken pipe)


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