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Message-ID: <lsq.1392192612.775277194@decadent.org.uk> Date: Wed, 12 Feb 2014 08:10:12 +0000 From: Ben Hutchings <ben@...adent.org.uk> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org CC: akpm@...ux-foundation.org, "Salva Peiró" <speiro@....upv.es>, "David S. Miller" <davem@...emloft.net> Subject: [PATCH 3.2 09/79] hamradio/yam: fix info leak in ioctl 3.2.55-rc1 review patch. If anyone has any objections, please let me know. ------------------ From: Salva Peiró <speiro@....upv.es> [ Upstream commit 8e3fbf870481eb53b2d3a322d1fc395ad8b367ed ] 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> Signed-off-by: David S. Miller <davem@...emloft.net> Signed-off-by: Ben Hutchings <ben@...adent.org.uk> --- drivers/net/hamradio/yam.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/hamradio/yam.c b/drivers/net/hamradio/yam.c index 96a98d2..e4260ab 100644 --- a/drivers/net/hamradio/yam.c +++ b/drivers/net/hamradio/yam.c @@ -1060,6 +1060,7 @@ static int yam_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) break; case SIOCYAMGCFG: + memset(&yi, 0, sizeof(yi)); yi.cfg.mask = 0xffffffff; yi.cfg.iobase = yp->iobase; yi.cfg.irq = yp->irq; -- 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/
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