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authorJohannes Berg <johannes.berg@intel.com>2026-02-09 21:12:20 +0300
committerJohannes Berg <johannes.berg@intel.com>2026-02-23 11:18:59 +0300
commitc8d7f21ead727485ebf965e2b4d42d4a4f0840f6 (patch)
treec2af25dc9b1a4757383ce44f000ae2db1308b00b
parent8bf22c33e7a172fbc72464f4cc484d23a6b412ba (diff)
downloadlinux-c8d7f21ead727485ebf965e2b4d42d4a4f0840f6.tar.xz
wifi: cfg80211: wext: fix IGTK key ID off-by-one
The IGTK key ID must be 4 or 5, but the code checks against key ID + 1, so must check against 5/6 rather than 4/5. Fix that. Reported-by: Jouni Malinen <j@w1.fi> Fixes: 08645126dd24 ("cfg80211: implement wext key handling") Link: https://patch.msgid.link/20260209181220.362205-2-johannes@sipsolutions.net Signed-off-by: Johannes Berg <johannes.berg@intel.com>
-rw-r--r--net/wireless/wext-compat.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/wireless/wext-compat.c b/net/wireless/wext-compat.c
index 1241fda78a68..680500fa57cf 100644
--- a/net/wireless/wext-compat.c
+++ b/net/wireless/wext-compat.c
@@ -684,7 +684,7 @@ static int cfg80211_wext_siwencodeext(struct net_device *dev,
idx = erq->flags & IW_ENCODE_INDEX;
if (cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
- if (idx < 4 || idx > 5) {
+ if (idx < 5 || idx > 6) {
idx = wdev->wext.default_mgmt_key;
if (idx < 0)
return -EINVAL;