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Date: Mon, 12 May 2014 02:32:38 +0200 From: Willy Tarreau <w@....eu> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org Cc: Salva Peiró <speiro@....upv.es>, "David S. Miller" <davem@...emloft.net>, Willy Tarreau <w@....eu> Subject: [ 038/143] wanxl: fix info leak in ioctl 2.6.32-longterm review patch. If anyone has any objections, please let me know. ------------------ From: =?latin1?q?Salva=20Peir=F3?= <speiro@....upv.es> [ Upstream commit 2b13d06c9584b4eb773f1e80bbaedab9a1c344e1 ] The wanxl_ioctl() code fails to initialize the two padding bytes of struct sync_serial_settings after the ->loopback member. Add an explicit memset(0) before filling the structure to avoid the info leak. Signed-off-by: Salva Peiró <speiro@....upv.es> Signed-off-by: David S. Miller <davem@...emloft.net> Signed-off-by: Willy Tarreau <w@....eu> --- drivers/net/wan/wanxl.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/wan/wanxl.c b/drivers/net/wan/wanxl.c index daee8a0..b52b378 100644 --- a/drivers/net/wan/wanxl.c +++ b/drivers/net/wan/wanxl.c @@ -354,6 +354,7 @@ static int wanxl_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) ifr->ifr_settings.size = size; /* data size wanted */ return -ENOBUFS; } + memset(&line, 0, sizeof(line)); line.clock_type = get_status(port)->clocking; line.clock_rate = 0; line.loopback = 0; -- 1.7.12.2.21.g234cd45.dirty -- 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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