linux-kernel - Re: [PATCH] hamradio/yam: fix info leak in ioctl

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: <20131216.201127.533912619440960142.davem@davemloft.net>
Date:	Mon, 16 Dec 2013 20:11:27 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	speiro@....upv.es
Cc:	linux-kernel@...r.kernel.org, security@...nel.org,
	linux-hams@...r.kernel.org, netdev@...r.kernel.org, jpr@...bb.org,
	stable@...r.kernel.org
Subject: Re: [PATCH] hamradio/yam: fix info leak in ioctl

From: Salva Peiró <speiro@....upv.es>
Date: Fri, 13 Dec 2013 08:46:07 +0100

> The yam_ioctl() code fails to initialise the cmd field
> of the struct yamdrv_ioctl_cfg. Add an explicit memset(0)
> before filling the structure to avoid the 4-byte info leak.
> 
> Signed-off-by: Salva Peiró <speiro@....upv.es>

Put this into the SIOCYAMGCFG case statement, which is where the
problem actually exists.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/