diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2018-06-29 09:33:39 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2018-06-29 09:44:51 +0200 |
| commit | 95bca62fb723a121954fc7ae5473bb2c1f0d5986 (patch) | |
| tree | 2d9e5ed15fe95d0edcb785027c51ec98363dd27d /net | |
| parent | 188f60ab8e787fcbb5ac9d64ede23a0070231f09 (diff) | |
| download | linux-95bca62fb723a121954fc7ae5473bb2c1f0d5986.tar.bz2 | |
nl80211: check nla_parse_nested() return values
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>
Diffstat (limited to 'net')
| -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 351eeaf16abe..4eece06be1e7 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -10949,9 +10949,12 @@ 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]) @@ -11200,8 +11203,11 @@ 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; |