diff options
Diffstat (limited to 'package/kernel/mac80211/patches/385-cfg80211-nl80211_update_ft_ies-to-validate-NL80211_A.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/385-cfg80211-nl80211_update_ft_ies-to-validate-NL80211_A.patch | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/385-cfg80211-nl80211_update_ft_ies-to-validate-NL80211_A.patch b/package/kernel/mac80211/patches/385-cfg80211-nl80211_update_ft_ies-to-validate-NL80211_A.patch new file mode 100644 index 0000000000..f4b14506a6 --- /dev/null +++ b/package/kernel/mac80211/patches/385-cfg80211-nl80211_update_ft_ies-to-validate-NL80211_A.patch @@ -0,0 +1,27 @@ +From: Arunk Khandavalli <akhandav@codeaurora.org> +Date: Thu, 30 Aug 2018 00:40:16 +0300 +Subject: [PATCH] cfg80211: nl80211_update_ft_ies() to validate + NL80211_ATTR_IE + +nl80211_update_ft_ies() tried to validate NL80211_ATTR_IE with +is_valid_ie_attr() before dereferencing it, but that helper function +returns true in case of NULL pointer (i.e., attribute not included). +This can result to dereferencing a NULL pointer. Fix that by explicitly +checking that NL80211_ATTR_IE is included. + +Fixes: 355199e02b83 ("cfg80211: Extend support for IEEE 802.11r Fast BSS Transition") +Signed-off-by: Arunk Khandavalli <akhandav@codeaurora.org> +Signed-off-by: Jouni Malinen <jouni@codeaurora.org> +Signed-off-by: Johannes Berg <johannes.berg@intel.com> +--- + +--- a/net/wireless/nl80211.c ++++ b/net/wireless/nl80211.c +@@ -11763,6 +11763,7 @@ static int nl80211_update_ft_ies(struct + return -EOPNOTSUPP; + + if (!info->attrs[NL80211_ATTR_MDID] || ++ !info->attrs[NL80211_ATTR_IE] || + !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) + return -EINVAL; + |