linux-kernel - Re: KASAN: use-after-free Read in tipc_nl_node_dump_monitor

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Message-ID: <000000000000b835a205a90a3a11@google.com>
Date:   Fri, 26 Jun 2020 22:38:03 -0700
From:   syzbot <syzbot+c96e4dfb32f8987fdeed@...kaller.appspotmail.com>
To:     davem@...emloft.net, jmaloy@...hat.com, kuba@...nel.org,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        syzkaller-bugs@...glegroups.com,
        tipc-discussion@...ts.sourceforge.net, xiyou.wangcong@...il.com,
        ying.xue@...driver.com
Subject: Re: KASAN: use-after-free Read in tipc_nl_node_dump_monitor_peer (2)

Hello,

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

Reported-and-tested-by: syzbot+c96e4dfb32f8987fdeed@...kaller.appspotmail.com

Tested on:

commit:         152c6a4d genetlink: get rid of family->attrbuf
git tree:       https://github.com/congwang/linux.git net
kernel config:  https://syzkaller.appspot.com/x/.config?x=20c907630cbdbe5
dashboard link: https://syzkaller.appspot.com/bug?extid=c96e4dfb32f8987fdeed
compiler:       clang version 10.0.0 (https://github.com/llvm/llvm-project/ c2443155a0fb245c8f17f2c1c72b6ea391e86e81)

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