SYZFAIL: output overflow

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: 8b723968 ext2fs: clear write cluster tracking on truncation
git tree: https://github.com/freebsd/freebsd-src.git main
console output: https://syzkaller.appspot.com/x/log.txt?x=16846accd00000
dashboard link: https://syzkaller.appspot.com/bug?extid=2bb3168770daf1cb4d31

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

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+2bb316...@syzkaller.appspotmail.com

SYZFAIL: output overflow
(errno 0: No error: 0)
SYZFAIL: child failed
Fssh_packet_write_wait: Connection to 216.239.38.127 port 9600: Broken pipe


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[syzbot]

syzbot has found a reproducer for the following issue on:

HEAD commit: 8b723968 ext2fs: clear write cluster tracking on truncation
git tree: https://github.com/freebsd/freebsd-src.git main

console output: https://syzkaller.appspot.com/x/log.txt?x=12454c6cd00000
dashboard link: https://syzkaller.appspot.com/bug?extid=2bb3168770daf1cb4d31
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=17f022cad00000

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+2bb316...@syzkaller.appspotmail.com

SYZFAIL: output overflow
(errno 0: No error: 0)
SYZFAIL: child failed

ifconfig: interface /dev/tap0 does not exist
pos=0x1b2cf2003c region=[0x0:0x1000000] (errno 14: Bad address)

[Mark Johnston]

On Sun, Feb 21, 2021 at 05:16:19PM -0800, syzbot wrote:
> Hello,
>
> syzbot found the following issue on:
>
> HEAD commit: 8b723968 ext2fs: clear write cluster tracking on truncation
> git tree: https://github.com/freebsd/freebsd-src.git main
> console output: https://syzkaller.appspot.com/x/log.txt?x=16846accd00000
> dashboard link: https://syzkaller.appspot.com/bug?extid=2bb3168770daf1cb4d31
>
> Unfortunately, I don't have any reproducer for this issue yet.
>
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+2bb316...@syzkaller.appspotmail.com
>
> SYZFAIL: output overflow
> (errno 0: No error: 0)
> SYZFAIL: child failed
> Fssh_packet_write_wait: Connection to 216.239.38.127 port 9600: Broken pipe

#syz invalid

This was caused by some incorrect system call descriptions. Fixed by
https://github.com/google/syzkaller/commit/f54a5c0916af7d798b204eb70c484f154d69e0a3