The name of the firmware (drv_datap->base_img) could potentially become equal to 255 valid characters (size of exec_file), this will result in an out of bounds write, given that the 255 chars along with a '\0' terminator will be copied into an array of 255 chars. Produce an error on this cases, because the driver expects the NULL ending to be among the 255 char limit. Reported-by: Chen Gang <gang.chen@xxxxxxxxxxx> Signed-off-by: Omar Ramirez Luna <omar.ramirez@xxxxxxxxxx> --- drivers/staging/tidspbridge/rmgr/proc.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/staging/tidspbridge/rmgr/proc.c b/drivers/staging/tidspbridge/rmgr/proc.c index 5e43938..ac016ed 100644 --- a/drivers/staging/tidspbridge/rmgr/proc.c +++ b/drivers/staging/tidspbridge/rmgr/proc.c @@ -394,7 +394,7 @@ static int get_exec_file(struct cfg_devnode *dev_node_obj, if (!drv_datap || !drv_datap->base_img) return -EFAULT; - if (strlen(drv_datap->base_img) > size) + if (strlen(drv_datap->base_img) >= size) return -EINVAL; strcpy(exec_file, drv_datap->base_img); -- 1.7.4.4 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
