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-rw-r--r--net/mac80211/util.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index decd46b38393..c1c117fdf318 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -1227,6 +1227,8 @@ _ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
elems->max_idle_period_ie = (void *)pos;
break;
case WLAN_EID_EXTENSION:
+ if (!elen)
+ break;
if (pos[0] == WLAN_EID_EXT_HE_MU_EDCA &&
elen >= (sizeof(*elems->mu_edca_param_set) + 1)) {
elems->mu_edca_param_set = (void *)&pos[1];