Messages in this thread Patch in this message | | | Date | Tue, 22 Feb 2011 14:16:59 -0800 | From | Greg KH <> | Subject | [20/70] [media] [v3,media] av7110: check for negative array offset |
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2.6.37-stable review patch. If anyone has any objections, please let us know.
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From: Dan Carpenter <error27@gmail.com>
commit cb26a24ee9706473f31d34cc259f4dcf45cd0644 upstream.
info->num comes from the user. It's type int. If the user passes in a negative value that would cause memory corruption.
Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
--- drivers/media/dvb/ttpci/av7110_ca.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/media/dvb/ttpci/av7110_ca.c +++ b/drivers/media/dvb/ttpci/av7110_ca.c @@ -277,7 +277,7 @@ static int dvb_ca_ioctl(struct file *fil { ca_slot_info_t *info=(ca_slot_info_t *)parg; - if (info->num > 1) + if (info->num < 0 || info->num > 1) return -EINVAL; av7110->ci_slot[info->num].num = info->num; av7110->ci_slot[info->num].type = FW_CI_LL_SUPPORT(av7110->arm_app) ?
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