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

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[ Upstream commit 8fcb0382af6f1ef50936f1be05b8149eb2f88496 ]

m->data needs to be freed when em_text_destroy is called.

Fixes: d675c989ed ("[PKT_SCHED]: Packet classification based on textsearch (ematch)")
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Hangyu Hua <hbh25y@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Hangyu Hua 2023-12-21 10:25:31 +08:00 • committed by Greg Kroah-Hartman
parent 463fe6953f
commit 4083c9bc38
1 changed files with 3 additions and 1 deletions
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4
net/sched/em_text.c
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@ -97,8 +97,10 @@ retry:
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)