Re: KASAN: use-after-free Read in ax25_fillin_cb

Hi, Joerg On Sat, Dec 29, 2018 at 2:06 PM Joerg Reuter wrote: > Unfortunately, I'm on a low bandwidth connection right now. I'd be > grateful if someone could create a patch. This is likely not a high > impact issue (unpriviliged users can't set up or tear down interfaces), > still it may cause

Re: KASAN: use-after-free Read in ax25_fillin_cb

On Fri, Dec 28, 2018 at 02:51:04PM -0800, syzbot wrote: > BUG: KASAN: use-after-free in ax25_fillin_cb_from_dev net/ax25/af_ax25.c:450 > [inline] > BUG: KASAN: use-after-free in ax25_fillin_cb+0x6d5/0x810 > net/ax25/af_ax25.c:477 > Read of size 4 at addr 8881ccecc438 by task

KASAN: use-after-free Read in ax25_fillin_cb

Hello, syzbot found the following crash on: HEAD commit:8fe28cb58bcb Linux 4.20 git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=11502b1540 kernel config: https://syzkaller.appspot.com/x/.config?x=7d581260bae0899a dashboard link: