Re: [syzbot] KASAN: use-after-free Read in j1939_xtp_rx_dat_one (3)

From: syzbot
Date: Thu Mar 31 2022 - 23:36:24 EST


Hello,

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

Reported-and-tested-by: syzbot+a9dce1ff45c3bbeceb3a@xxxxxxxxxxxxxxxxxxxxxxxxx

Tested on:

commit: ae085d7f mm: kfence: fix missing objcg housekeeping fo..
git tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/
kernel config: https://syzkaller.appspot.com/x/.config?x=6bae4cd50262530e
dashboard link: https://syzkaller.appspot.com/bug?extid=a9dce1ff45c3bbeceb3a
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=11cc67f5700000

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