From: Ilan Peer <ilan.peer@intel.com>
Date: Fri, 14 Feb 2025 07:47:21 +0000 (+0200)
Subject: wifi: mac80211: Fix possible integer promotion issue
X-Git-Tag: v6.15-rc1~160^2~184^2~19
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=ebf9944bed4ef69d29371cd3b7276f858c513954;p=thirdparty%2Fkernel%2Flinux.git

wifi: mac80211: Fix possible integer promotion issue

Fix a possible integer promotion issue in mac80211 in ieee80211_ml_epcs()

Fixes: de86c5f60839 ("wifi: mac80211: Add support for EPCS configuration")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Link: https://patch.msgid.link/20250214074721.1613549-1-ilan.peer@intel.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---

diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 4e8f0a5f6251e..23d85a1abbc59 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -10704,7 +10704,7 @@ static void ieee80211_ml_epcs(struct ieee80211_sub_if_data *sdata,
 						  elems->ml_epcs_len,
 						  scratch, scratch_len,
 						  IEEE80211_MLE_SUBELEM_FRAGMENT);
-		if (len < sizeof(control))
+		if (len < (ssize_t)sizeof(control))
 			continue;
 
 		pos = scratch + sizeof(control);