Re: [syzbot] [kernel?] bpf-next test error: UBSAN: array-index-out-of-bounds in alloc_pid

On Mon, Jul 03, 2023 at 12:14:17AM -0700, syzbot wrote:

Hello,

syzbot found the following issue on:

HEAD commit:    c20f9cef725b Merge branch 'libbpf: add netfilter link atta..
git tree:       bpf-next
console output: https://syzkaller.appspot.com/x/log.txt?x=127adbfb280000
kernel config:  https://syzkaller.appspot.com/x/.config?x=924167e3666ff54c
dashboard link: https://syzkaller.appspot.com/bug?extid=319a9b09e5de1ecae1e1
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/bf9c9608a1e0/disk-c20f9cef.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/3bde4e994bd0/vmlinux-c20f9cef.xz
kernel image: https://storage.googleapis.com/syzbot-assets/5d80f8634183/bzImage-c20f9cef.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+319a9b09e5de1ecae1e1@syzkaller.appspotmail.com

#syz dup: [syzbot] [kernel?] net-next test error: UBSAN: array-index-out-of-bounds in alloc_pid