diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2024-04-18 10:52:23 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2024-04-19 10:02:17 +0200 |
| commit | 801ea33ae82d6a9d954074fbcf8ea9d18f1543a7 (patch) | |
| tree | 5c8dede71437c637483aa370fe4061468bafeb70 | |
| parent | 2fb5dfe18e8255dbec4d0f8e81297de8e3490285 (diff) | |
wifi: nl80211: don't free NULL coalescing rule
If the parsing fails, we can dereference a NULL pointer here.
Cc: stable@vger.kernel.org
Fixes: be29b99a9b51 ("cfg80211/nl80211: Add packet coalesce support")
Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240418105220.b328f80406e7.Id75d961050deb05b3e4e354e024866f350c68103@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| -rw-r--r-- | net/wireless/nl80211.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index b4edba6b0b7ba..30ff9a4708134 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -14030,6 +14030,8 @@ static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info) error: for (i = 0; i < new_coalesce.n_rules; i++) { tmp_rule = &new_coalesce.rules[i]; + if (!tmp_rule) + continue; for (j = 0; j < tmp_rule->n_patterns; j++) kfree(tmp_rule->patterns[j].mask); kfree(tmp_rule->patterns); |