From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kalle Valo Subject: Re: qtnfmac: fix NULL pointer dereference Date: Mon, 18 Jun 2018 08:55:35 +0000 (UTC) Message-ID: <20180618085535.6A8F160B13@smtp.codeaurora.org> References: <20180601132408.GA2572@embeddedor.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Cc: Igor Mitsyanko , Avinash Patil , Sergey Matyukevich , "David S. Miller" , linux-wireless@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, "Gustavo A. R. Silva" , kernel-janitors@vger.kernel.org To: "Gustavo A. R. Silva" Return-path: In-Reply-To: <20180601132408.GA2572@embeddedor.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org "Gustavo A. R. Silva" wrote: > In case *vif* is NULL at 655: if (!vif), the execution path jumps to > label out, where *vif* is dereferenced at 679: > > if (vif->sta_state == QTNF_STA_CONNECTING) > > Fix this by immediately returning when *vif* is NULL instead of > jumping to label out. > > Addresses-Coverity-ID: 1469567 ("Dereference after null check") > Fixes: 480daa9cb62c ("qtnfmac: fix invalid STA state on EAPOL failure") > Signed-off-by: Gustavo A. R. Silva > Reviewed-by: Sergey Matyukevich Patch applied to wireless-drivers.git, thanks. c1e3f64f8738 qtnfmac: fix NULL pointer dereference -- https://patchwork.kernel.org/patch/10443507/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches