32 lines
1.3 KiB
Diff
32 lines
1.3 KiB
Diff
From: =?UTF-8?q?Salva=20Peir=C3=B3?= <speirofr@gmail.com>
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Date: Wed, 7 Oct 2015 07:09:26 -0300
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Subject: [media] media/vivid-osd: 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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Origin: https://git.kernel.org/linus/eda98796aff0d9bf41094b06811f5def3b4c333c
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The vivid_fb_ioctl() code fails to initialize the 16 _reserved bytes of
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struct fb_vblank after the ->hcount member. Add an explicit
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memset(0) before filling the structure to avoid the info leak.
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Signed-off-by: Salva Peiró <speirofr@gmail.com>
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Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
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Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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---
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drivers/media/platform/vivid/vivid-osd.c | 1 +
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1 file changed, 1 insertion(+)
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diff --git a/drivers/media/platform/vivid/vivid-osd.c b/drivers/media/platform/vivid/vivid-osd.c
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index 084d346..e15eef6 100644
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--- a/drivers/media/platform/vivid/vivid-osd.c
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+++ b/drivers/media/platform/vivid/vivid-osd.c
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@@ -85,6 +85,7 @@ static int vivid_fb_ioctl(struct fb_info *info, unsigned cmd, unsigned long arg)
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case FBIOGET_VBLANK: {
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struct fb_vblank vblank;
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+ memset(&vblank, 0, sizeof(vblank));
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vblank.flags = FB_VBLANK_HAVE_COUNT | FB_VBLANK_HAVE_VCOUNT |
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FB_VBLANK_HAVE_VSYNC;
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vblank.count = 0;
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