diff options
Diffstat (limited to 'package/kernel/mac80211/patches/subsys/354-wifi-cfg80211-ensure-length-byte-is-present-before-a.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/subsys/354-wifi-cfg80211-ensure-length-byte-is-present-before-a.patch | 41 |
1 files changed, 0 insertions, 41 deletions
diff --git a/package/kernel/mac80211/patches/subsys/354-wifi-cfg80211-ensure-length-byte-is-present-before-a.patch b/package/kernel/mac80211/patches/subsys/354-wifi-cfg80211-ensure-length-byte-is-present-before-a.patch deleted file mode 100644 index da94840dac..0000000000 --- a/package/kernel/mac80211/patches/subsys/354-wifi-cfg80211-ensure-length-byte-is-present-before-a.patch +++ /dev/null @@ -1,41 +0,0 @@ -From: Johannes Berg <johannes.berg@intel.com> -Date: Thu, 29 Sep 2022 21:50:44 +0200 -Subject: [PATCH] wifi: cfg80211: ensure length byte is present before - access - -commit 567e14e39e8f8c6997a1378bc3be615afca86063 upstream. - -When iterating the elements here, ensure the length byte is -present before checking it to see if the entire element will -fit into the buffer. - -Longer term, we should rewrite this code using the type-safe -element iteration macros that check all of this. - -Fixes: 0b8fb8235be8 ("cfg80211: Parsing of Multiple BSSID information in scanning") -Reported-by: Soenke Huster <shuster@seemoo.tu-darmstadt.de> -Signed-off-by: Johannes Berg <johannes.berg@intel.com> ---- - ---- a/net/wireless/scan.c -+++ b/net/wireless/scan.c -@@ -304,7 +304,8 @@ static size_t cfg80211_gen_new_ie(const - tmp_old = cfg80211_find_ie(WLAN_EID_SSID, ie, ielen); - tmp_old = (tmp_old) ? tmp_old + tmp_old[1] + 2 : ie; - -- while (tmp_old + tmp_old[1] + 2 - ie <= ielen) { -+ while (tmp_old + 2 - ie <= ielen && -+ tmp_old + tmp_old[1] + 2 - ie <= ielen) { - if (tmp_old[0] == 0) { - tmp_old++; - continue; -@@ -364,7 +365,8 @@ static size_t cfg80211_gen_new_ie(const - * copied to new ie, skip ssid, capability, bssid-index ie - */ - tmp_new = sub_copy; -- while (tmp_new + tmp_new[1] + 2 - sub_copy <= subie_len) { -+ while (tmp_new + 2 - sub_copy <= subie_len && -+ tmp_new + tmp_new[1] + 2 - sub_copy <= subie_len) { - if (!(tmp_new[0] == WLAN_EID_NON_TX_BSSID_CAP || - tmp_new[0] == WLAN_EID_SSID)) { - memcpy(pos, tmp_new, tmp_new[1] + 2); |