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[media] media/vivid-osd: fix info leak in ioctl

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The vivid_fb_ioctl() code fails to initialize the 16 _reserved bytes of
struct fb_vblank after the ->hcount member. Add an explicit
memset(0) before filling the structure to avoid the info leak.

Signed-off-by: Salva Peiró <[email protected]>
Signed-off-by: Hans Verkuil <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
This commit is contained in:
Salva Peiró 2015-10-07 07:09:26 -03:00 • committed by Mauro Carvalho Chehab
commit eda98796af
1 changed files with 1 additions and 0 deletions
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1
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)
case FBIOGET_VBLANK: {
struct fb_vblank vblank;
memset(&vblank, 0, sizeof(vblank));
vblank.flags = FB_VBLANK_HAVE_COUNT | FB_VBLANK_HAVE_VCOUNT |
FB_VBLANK_HAVE_VSYNC;
vblank.count = 0;