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

From: syzbot

Date: Mon Aug 17 2026 - 01:40:14 EST


Hello,

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

Reported-by: syzbot+685955db58555575fdd2@xxxxxxxxxxxxxxxxxxxxxxxxx
Tested-by: syzbot+685955db58555575fdd2@xxxxxxxxxxxxxxxxxxxxxxxxx

Tested on:

commit: 8d3ae592 Linux 7.2
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=13c42679580000
kernel config: https://syzkaller.appspot.com/x/.config?x=dd70c0851d340092
dashboard link: https://syzkaller.appspot.com/bug?extid=685955db58555575fdd2
compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
patch: https://syzkaller.appspot.com/x/patch.diff?x=141efa79580000

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