Re: [syzbot] KASAN: use-after-free Read in post_one_notification

From: syzbot
Date: Sat Jul 23 2022 - 10:39:21 EST


Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-and-tested-by: syzbot+c70d87ac1d001f29a058@xxxxxxxxxxxxxxxxxxxxxxxxx

Tested on:

commit: 551acdc3 Merge tag 'net-5.17-final' of git://git.kerne..
git tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
console output: https://syzkaller.appspot.com/x/log.txt?x=133a814a080000
kernel config: https://syzkaller.appspot.com/x/.config?x=e006319d4b3bc11a
dashboard link: https://syzkaller.appspot.com/bug?extid=c70d87ac1d001f29a058
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
patch: https://syzkaller.appspot.com/x/patch.diff?x=13b8c83c080000

Note: testing is done by a robot and is best-effort only.