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Date: Mon, 25 May 2020 17:53:06 -0700 (PDT) From: David Miller <davem@...emloft.net> To: dan.carpenter@...cle.com Cc: viro@...iv.linux.org.uk, kuznet@....inr.ac.ru, yoshfuji@...ux-ipv6.org, kuba@...nel.org, netdev@...r.kernel.org, kernel-janitors@...r.kernel.org Subject: Re: [PATCH net-next] ipv4: potential underflow in compat_ip_setsockopt() From: Dan Carpenter <dan.carpenter@...cle.com> Date: Sat, 23 May 2020 20:46:48 +0300 > The value of "n" is capped at 0x1ffffff but it checked for negative > values. I don't think this causes a problem but I'm not certain and > it's harmless to prevent it. > > Fixes: 2e04172875c9 ("ipv4: do compat setsockopt for MCAST_MSFILTER directly") > Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com> Applied.
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