From: Dan Carpenter <[email protected]> ===================================================================== | This is a commit scheduled for the next v2.6.34 longterm release. | | If you see a problem with using this for longterm, please comment.| =====================================================================
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 <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]> Signed-off-by: Paul Gortmaker <[email protected]> --- drivers/media/dvb/ttpci/av7110_ca.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/media/dvb/ttpci/av7110_ca.c b/drivers/media/dvb/ttpci/av7110_ca.c index ac7779c..d884aac 100644 --- a/drivers/media/dvb/ttpci/av7110_ca.c +++ b/drivers/media/dvb/ttpci/av7110_ca.c @@ -278,7 +278,7 @@ static int dvb_ca_ioctl(struct inode *inode, struct file *file, { 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) ? -- 1.7.4.4 _______________________________________________ stable mailing list [email protected] http://linux.kernel.org/mailman/listinfo/stable
