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| author | Johannes Berg <johannes.berg@intel.com> | 2018-06-29 09:33:39 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-08-24 13:09:09 +0200 |
| commit | d4857eb755d72c9e063b17256e5479353a2bf785 (patch) | |
| tree | 00317ec2df2282d6b01e548c06edae626aeea13e | |
| parent | 334c9cd8ba8d8c1b5dcb5a49b997aeef3db06c1d (diff) | |
| download | linux-d4857eb755d72c9e063b17256e5479353a2bf785.tar.gz | |
nl80211: check nla_parse_nested() return values
[ Upstream commit 95bca62fb723a121954fc7ae5473bb2c1f0d5986 ]
At the very least we should check the return value if
nla_parse_nested() is called with a non-NULL policy.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | net/wireless/nl80211.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 0cecfdaa681da..4cd351b74e487 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -10529,9 +10529,12 @@ static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info) rem) { u8 *mask_pat; - nla_parse_nested(pat_tb, MAX_NL80211_PKTPAT, pat, - nl80211_packet_pattern_policy, - info->extack); + err = nla_parse_nested(pat_tb, MAX_NL80211_PKTPAT, pat, + nl80211_packet_pattern_policy, + info->extack); + if (err) + goto error; + err = -EINVAL; if (!pat_tb[NL80211_PKTPAT_MASK] || !pat_tb[NL80211_PKTPAT_PATTERN]) @@ -10780,8 +10783,11 @@ static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev, rem) { u8 *mask_pat; - nla_parse_nested(pat_tb, MAX_NL80211_PKTPAT, pat, - nl80211_packet_pattern_policy, NULL); + err = nla_parse_nested(pat_tb, MAX_NL80211_PKTPAT, pat, + nl80211_packet_pattern_policy, NULL); + if (err) + return err; + if (!pat_tb[NL80211_PKTPAT_MASK] || !pat_tb[NL80211_PKTPAT_PATTERN]) return -EINVAL; |