net: sched: em_text: fix possible memory leak in em_text_destroy()

m->data needs to be freed when em_text_destroy is called. Fixes: d675c98 ("[PKT_SCHED]: Packet classification based on textsearch (ematch)") Acked-by: Jamal Hadi Salim <[email protected]> Signed-off-by: Hangyu Hua <[email protected]> Reviewed-by: Simon Horman <[email protected]> Signed-off-by: David S. Miller <[email protected]>
wafgo · Jan 1, 2024 · 8fcb038 · 8fcb038
1 parent dcea1bd
commit 8fcb038
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/net/sched/em_text.c b/net/sched/em_text.c
@@ -97,8 +97,10 @@ static int em_text_change(struct net *net, void *data, int len,
 
 static void em_text_destroy(struct tcf_ematch *m)
 {
-	if (EM_TEXT_PRIV(m) && EM_TEXT_PRIV(m)->config)
+	if (EM_TEXT_PRIV(m) && EM_TEXT_PRIV(m)->config) {
 		textsearch_destroy(EM_TEXT_PRIV(m)->config);
+		kfree(EM_TEXT_PRIV(m));
+	}
 }
 
 static int em_text_dump(struct sk_buff *skb, struct tcf_ematch *m)