This is an automatic generated email to let you know that the following patch were queued: Subject: media: rc: check for integer overflow Author: Sean Young <sean@xxxxxxxx> Date: Sun Oct 8 14:18:52 2017 -0400 The ioctl LIRC_SET_REC_TIMEOUT would set a timeout of 704ns if called with a timeout of 4294968us. Cc: <stable@xxxxxxxxxxxxxxx> Signed-off-by: Sean Young <sean@xxxxxxxx> Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxxx> drivers/media/rc/ir-lirc-codec.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) --- diff --git a/drivers/media/rc/ir-lirc-codec.c b/drivers/media/rc/ir-lirc-codec.c index bd046c41a53a..8f2f37412fc5 100644 --- a/drivers/media/rc/ir-lirc-codec.c +++ b/drivers/media/rc/ir-lirc-codec.c @@ -298,11 +298,14 @@ static long ir_lirc_ioctl(struct file *filep, unsigned int cmd, if (!dev->max_timeout) return -ENOTTY; + /* Check for multiply overflow */ + if (val > U32_MAX / 1000) + return -EINVAL; + tmp = val * 1000; - if (tmp < dev->min_timeout || - tmp > dev->max_timeout) - return -EINVAL; + if (tmp < dev->min_timeout || tmp > dev->max_timeout) + return -EINVAL; if (dev->s_timeout) ret = dev->s_timeout(dev, tmp);