3.11.10.2 -stable review patch. If anyone has any objections, please let me know.
------------------ From: Johannes Berg <[email protected]> commit 60765a47a433d54e4744c285ad127f182dcd80aa upstream. The station ID must be valid, if it's out of range then the array access may crash. Validate the station ID to the array length, and also validate the drain value even if that doesn't matter all that much. Fixes: 8ca151b568b6 ("iwlwifi: add the MVM driver") Signed-off-by: Johannes Berg <[email protected]> Signed-off-by: Emmanuel Grumbach <[email protected]> Signed-off-by: Luis Henriques <[email protected]> --- drivers/net/wireless/iwlwifi/mvm/debugfs.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/wireless/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/iwlwifi/mvm/debugfs.c index c24a744..b52e8b6 100644 --- a/drivers/net/wireless/iwlwifi/mvm/debugfs.c +++ b/drivers/net/wireless/iwlwifi/mvm/debugfs.c @@ -119,6 +119,10 @@ static ssize_t iwl_dbgfs_sta_drain_write(struct file *file, if (sscanf(buf, "%d %d", &sta_id, &drain) != 2) return -EINVAL; + if (sta_id < 0 || sta_id >= IWL_MVM_STATION_COUNT) + return -EINVAL; + if (drain < 0 || drain > 1) + return -EINVAL; mutex_lock(&mvm->mutex); -- 1.8.3.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
