netdev - Re: [EXT] [PATCH] scsi: qedf: potential dereference of null pointer

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20220103091222.194ef58f@kicinski-fedora-PC1C0HJN.hsd1.ca.comcast.net>
Date:   Mon, 3 Jan 2022 09:12:22 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     Saurav Kashyap <skashyap@...vell.com>
Cc:     Jiasheng Jiang <jiasheng@...as.ac.cn>,
        Javed Hasan <jhasan@...vell.com>,
        GR-QLogic-Storage-Upstream <GR-QLogic-Storage-Upstream@...vell.com>,
        "jejb@...ux.ibm.com" <jejb@...ux.ibm.com>,
        "martin.petersen@...cle.com" <martin.petersen@...cle.com>,
        "linux@...linux.org.uk" <linux@...linux.org.uk>,
        "linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: [EXT] [PATCH] scsi: qedf: potential dereference of null pointer

On Mon, 3 Jan 2022 04:58:41 +0000 Saurav Kashyap wrote:
> > QEDF_TERM_BUFF_SIZE,
> >  		&term_params_dma, GFP_KERNEL);
> > +	if (!term_params)
> > +		return;  
> 
> <SK> Adding message about failure before returning will help in debugging.

Memory allocations produce a pretty detailed splat.