From: Eric Dumazet <eric.dumazet@gmail.com>
To: Phillip Potter <phil@philpotter.co.uk>,
Eric Dumazet <eric.dumazet@gmail.com>
Cc: davem@davemloft.net, yoshfuji@linux-ipv6.org, dsahern@kernel.org,
kuba@kernel.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] net: initialize local variables in net/ipv6/mcast.c and net/ipv4/igmp.c
Date: Fri, 2 Apr 2021 22:53:48 +0200 [thread overview]
Message-ID: <37f4c845-e63b-87b8-29ec-b28d895326cd@gmail.com> (raw)
In-Reply-To: <YGdeAK3BwWSnDwRX@equinox>
On 4/2/21 8:10 PM, Phillip Potter wrote:
> On Fri, Apr 02, 2021 at 07:49:44PM +0200, Eric Dumazet wrote:
>>
>>
>> On 4/2/21 7:36 PM, Phillip Potter wrote:
>>> Use memset to initialize two local buffers in net/ipv6/mcast.c,
>>> and another in net/ipv4/igmp.c. Fixes a KMSAN found uninit-value
>>> bug reported by syzbot at:
>>> https://syzkaller.appspot.com/bug?id=0766d38c656abeace60621896d705743aeefed51
>>
>>
>> According to this link, the bug no longer triggers.
>>
>> Please explain why you think it is still there.
>>
>
> Dear Eric,
>
> It definitely still triggers, tested it on the master branch of
> https://github.com/google/kmsan last night. The patch which fixes the
> crash on that page is the same patch I've sent in.
Please send the full report (stack trace)
Thanks.
next prev parent reply other threads:[~2021-04-02 20:53 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-02 17:36 [PATCH] net: initialize local variables in net/ipv6/mcast.c and net/ipv4/igmp.c Phillip Potter
2021-04-02 17:49 ` Eric Dumazet
2021-04-02 18:10 ` Phillip Potter
2021-04-02 20:53 ` Eric Dumazet [this message]
2021-04-02 21:12 ` Eric Dumazet
2021-04-03 19:41 ` Phillip Potter
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