mirror of
https://github.com/Divested-Mobile/DivestOS-Build.git
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86 lines
3.2 KiB
Diff
86 lines
3.2 KiB
Diff
From 64c0865bb0c5a642ba420967b23e0f66e035b300 Mon Sep 17 00:00:00 2001
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From: Rajeev Kumar Sirasanagandla <rsirasan@codeaurora.org>
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Date: Tue, 13 Jun 2017 12:04:09 +0530
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Subject: wlan: Avoid concurrent matrix max param overread
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qcacld-3.0 to prima propagation.
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Currently there is no nl policy defined for vendor sub command
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QCA_NL80211_VENDOR_SUBCMD_GET_CONCURRENCY_MATRIX which may result in
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buffer overread error.
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To resolve this, add nl policy.
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Change-Id: I155efdbb07f1c5fe300bb2be0c2a3fe07c7e134b
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CRs-Fixed: 2058455
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---
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CORE/HDD/src/wlan_hdd_cfg80211.c | 23 +++++++++++++++++------
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1 file changed, 17 insertions(+), 6 deletions(-)
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diff --git a/CORE/HDD/src/wlan_hdd_cfg80211.c b/CORE/HDD/src/wlan_hdd_cfg80211.c
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index b8f74cc..0c36e73 100644
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--- a/CORE/HDD/src/wlan_hdd_cfg80211.c
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+++ b/CORE/HDD/src/wlan_hdd_cfg80211.c
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@@ -4985,6 +4985,15 @@ wlan_hdd_cfg80211_get_supported_features(struct wiphy *wiphy,
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return ret;
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}
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+#define MAX_CONCURRENT_MATRIX \
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+ QCA_WLAN_VENDOR_ATTR_GET_CONCURRENCY_MATRIX_MAX
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+#define MATRIX_CONFIG_PARAM_SET_SIZE_MAX \
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+ QCA_WLAN_VENDOR_ATTR_GET_CONCURRENCY_MATRIX_CONFIG_PARAM_SET_SIZE_MAX
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+static const struct nla_policy
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+wlan_hdd_get_concurrency_matrix_policy[MAX_CONCURRENT_MATRIX + 1] = {
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+ [MATRIX_CONFIG_PARAM_SET_SIZE_MAX] = {.type = NLA_U32},
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+};
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+
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static int
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__wlan_hdd_cfg80211_get_concurrency_matrix(struct wiphy *wiphy,
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struct wireless_dev *wdev,
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@@ -4992,7 +5001,7 @@ __wlan_hdd_cfg80211_get_concurrency_matrix(struct wiphy *wiphy,
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{
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uint32_t feature_set_matrix[WLAN_HDD_MAX_FEATURE_SET] = {0};
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uint8_t i, feature_sets, max_feature_sets;
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- struct nlattr *tb[QCA_WLAN_VENDOR_ATTR_GET_CONCURRENCY_MATRIX_MAX + 1];
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+ struct nlattr *tb[MAX_CONCURRENT_MATRIX + 1];
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struct sk_buff *reply_skb;
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hdd_context_t *pHddCtx = wiphy_priv(wiphy);
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int ret;
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@@ -5005,19 +5014,18 @@ __wlan_hdd_cfg80211_get_concurrency_matrix(struct wiphy *wiphy,
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return ret;
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}
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- if (nla_parse(tb, QCA_WLAN_VENDOR_ATTR_GET_CONCURRENCY_MATRIX_MAX,
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- data, data_len, NULL)) {
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+ if (nla_parse(tb, MAX_CONCURRENT_MATRIX, data, data_len,
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+ wlan_hdd_get_concurrency_matrix_policy)) {
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hddLog(LOGE, FL("Invalid ATTR"));
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return -EINVAL;
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}
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/* Parse and fetch max feature set */
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- if (!tb[QCA_WLAN_VENDOR_ATTR_GET_CONCURRENCY_MATRIX_CONFIG_PARAM_SET_SIZE_MAX]) {
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+ if (!tb[MATRIX_CONFIG_PARAM_SET_SIZE_MAX]) {
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hddLog(LOGE, FL("Attr max feature set size failed"));
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return -EINVAL;
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}
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- max_feature_sets = nla_get_u32(
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- tb[QCA_WLAN_VENDOR_ATTR_GET_CONCURRENCY_MATRIX_CONFIG_PARAM_SET_SIZE_MAX]);
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+ max_feature_sets = nla_get_u32(tb[MATRIX_CONFIG_PARAM_SET_SIZE_MAX]);
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hddLog(LOG1, FL("Max feature set size (%d)"), max_feature_sets);
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/* Fill feature combination matrix */
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@@ -5068,6 +5076,9 @@ __wlan_hdd_cfg80211_get_concurrency_matrix(struct wiphy *wiphy,
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}
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+#undef MAX_CONCURRENT_MATRIX
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+#undef MATRIX_CONFIG_PARAM_SET_SIZE_MAX
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+
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static int
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wlan_hdd_cfg80211_get_concurrency_matrix(struct wiphy *wiphy,
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struct wireless_dev *wdev,
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--
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cgit v1.1
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