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Message-ID: <20230703-finte-einundzwanzig-64713a7d6dda@brauner>
Date:   Mon, 3 Jul 2023 10:01:01 +0200
From:   Christian Brauner <brauner@...nel.org>
To:     syzbot <syzbot+f02ef87ef8bbb97026bd@...kaller.appspotmail.com>
Cc:     davem@...emloft.net, kuba@...nel.org, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [kernel?] net-next test error: UBSAN:
 array-index-out-of-bounds in alloc_pid

On Sun, Jul 02, 2023 at 10:35:50PM -0700, syzbot wrote:
> Hello,
> 
> syzbot found the following issue on:
> 
> HEAD commit:    3a8a670eeeaa Merge tag 'net-next-6.5' of git://git.kernel...
> git tree:       net-next
> console output: https://syzkaller.appspot.com/x/log.txt?x=1391a15f280000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=924167e3666ff54c
> dashboard link: https://syzkaller.appspot.com/bug?extid=f02ef87ef8bbb97026bd
> compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
> 
> Downloadable assets:
> disk image: https://storage.googleapis.com/syzbot-assets/580f71d6d107/disk-3a8a670e.raw.xz
> vmlinux: https://storage.googleapis.com/syzbot-assets/7d94a5879cd1/vmlinux-3a8a670e.xz
> kernel image: https://storage.googleapis.com/syzbot-assets/4ef3ba2a581e/bzImage-3a8a670e.xz
> 
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+f02ef87ef8bbb97026bd@...kaller.appspotmail.com

#syz fix: pid: Replace struct pid 1-element array with flex-array

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