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From: syzbot <syzbot+0e665e4b99cb925286a0@syzkaller.appspotmail.com>
To: syedtayyabfarooq08@gmail.com
Cc: netdev@vger.kernel.org, syedtayyabfarooq08@gmail.com,
	 tayyabfarooq1997@outlook.com, linux-kernel@vger.kernel.org,
	 syzkaller-bugs@googlegroups.com
Subject: Re: [PATCH] memset skb to zero to avoid uninit value error from KMSAN
Date: Sun, 07 Dec 2025 08:21:21 -0800	[thread overview]
Message-ID: <6935a981.a70a0220.38f243.0064.GAE@google.com> (raw)
In-Reply-To: <20251207162109.113159-1-tayyabfarooq1997@outlook.com>

> Signed-off-by: Syed Tayyab Farooq <tayyabfarooq1997@outlook.com>
> ---
>
> Hi syzbot,
>
> Please test this patch.
>
> #syz test: https://syzkaller.appspot.com/bug?extid=0e665e4b99cb925286a0

This crash does not have a reproducer. I cannot test it.

>
> Thanks,
> Tayyab
>
>
>  net/phonet/af_phonet.c | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/net/phonet/af_phonet.c b/net/phonet/af_phonet.c
> index a27efa4faa4e..9279decd680b 100644
> --- a/net/phonet/af_phonet.c
> +++ b/net/phonet/af_phonet.c
> @@ -208,6 +208,8 @@ static int pn_raw_send(const void *data, int len, struct net_device *dev,
>  	if (skb == NULL)
>  		return -ENOMEM;
>  
> +	memset(skb, 0, MAX_PHONET_HEADER + len);
> +
>  	if (phonet_address_lookup(dev_net(dev), pn_addr(dst)) == 0)
>  		skb->pkt_type = PACKET_LOOPBACK;
>  
> -- 
> 2.43.0
>

           reply	other threads:[~2025-12-07 16:21 UTC|newest]

Thread overview: expand[flat|nested]  mbox.gz  Atom feed
 [parent not found: <20251207162109.113159-1-tayyabfarooq1997@outlook.com>]

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