37 lines
1.1 KiB
Diff
37 lines
1.1 KiB
Diff
Bugzilla: 1053647
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Upstream-status: 3.13 and 3.12.8
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From foo@baz Mon Jan 13 09:44:41 PST 2014
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From: =?UTF-8?q?Salva=20Peir=C3=B3?= <speiro@ai2.upv.es>
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Date: Tue, 17 Dec 2013 10:06:30 +0100
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Subject: hamradio/yam: fix info leak in ioctl
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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From: Salva Peiró <speiro@ai2.upv.es>
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[ Upstream commit 8e3fbf870481eb53b2d3a322d1fc395ad8b367ed ]
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The yam_ioctl() code fails to initialise the cmd field
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of the struct yamdrv_ioctl_cfg. Add an explicit memset(0)
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before filling the structure to avoid the 4-byte info leak.
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Signed-off-by: Salva Peiró <speiro@ai2.upv.es>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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---
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drivers/net/hamradio/yam.c | 1 +
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1 file changed, 1 insertion(+)
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--- a/drivers/net/hamradio/yam.c
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+++ b/drivers/net/hamradio/yam.c
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@@ -1057,6 +1057,7 @@ static int yam_ioctl(struct net_device *
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break;
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case SIOCYAMGCFG:
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+ memset(&yi, 0, sizeof(yi));
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yi.cfg.mask = 0xffffffff;
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yi.cfg.iobase = yp->iobase;
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yi.cfg.irq = yp->irq;
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