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* [PATCH] crypto: user - fix memory leak in crypto_reportstat
@ 2019-10-04 19:34 Navid Emamdoost
  2019-10-05 15:27 ` Markus Elfring
  2019-10-10 12:58 ` Herbert Xu
  0 siblings, 2 replies; 3+ messages in thread
From: Navid Emamdoost @ 2019-10-04 19:34 UTC (permalink / raw)
  Cc: emamd001, kjlu, smccaman, Navid Emamdoost, Herbert Xu,
	David S. Miller, linux-crypto, linux-kernel

In crypto_reportstat, a new skb is created by nlmsg_new(). This skb is
leaked if crypto_reportstat_alg() fails. Required release for skb is
added.

Fixes: cac5818c25d0 ("crypto: user - Implement a generic crypto statistics")
Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
---
 crypto/crypto_user_stat.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/crypto/crypto_user_stat.c b/crypto/crypto_user_stat.c
index 8bad88413de1..1be95432fa23 100644
--- a/crypto/crypto_user_stat.c
+++ b/crypto/crypto_user_stat.c
@@ -328,8 +328,10 @@ int crypto_reportstat(struct sk_buff *in_skb, struct nlmsghdr *in_nlh,
 drop_alg:
 	crypto_mod_put(alg);
 
-	if (err)
+	if (err) {
+		kfree_skb(skb);
 		return err;
+	}
 
 	return nlmsg_unicast(net->crypto_nlsk, skb, NETLINK_CB(in_skb).portid);
 }
-- 
2.17.1


^ permalink raw reply related	[flat|nested] 3+ messages in thread

* Re: [PATCH] crypto: user - fix memory leak in crypto_reportstat
  2019-10-04 19:34 [PATCH] crypto: user - fix memory leak in crypto_reportstat Navid Emamdoost
@ 2019-10-05 15:27 ` Markus Elfring
  2019-10-10 12:58 ` Herbert Xu
  1 sibling, 0 replies; 3+ messages in thread
From: Markus Elfring @ 2019-10-05 15:27 UTC (permalink / raw)
  To: Navid Emamdoost, linux-crypto
  Cc: Navid Emamdoost, Kangjie Lu, Stephen McCamant, David S. Miller,
	Herbert Xu, linux-kernel, kernel-janitors

> In crypto_reportstat, a new skb is created by nlmsg_new(). This skb is
> leaked if crypto_reportstat_alg() fails. Required release for skb is
> added.

Please improve this change description.

Regards,
Markus

^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: [PATCH] crypto: user - fix memory leak in crypto_reportstat
  2019-10-04 19:34 [PATCH] crypto: user - fix memory leak in crypto_reportstat Navid Emamdoost
  2019-10-05 15:27 ` Markus Elfring
@ 2019-10-10 12:58 ` Herbert Xu
  1 sibling, 0 replies; 3+ messages in thread
From: Herbert Xu @ 2019-10-10 12:58 UTC (permalink / raw)
  To: Navid Emamdoost
  Cc: emamd001, kjlu, smccaman, David S. Miller, linux-crypto, linux-kernel

On Fri, Oct 04, 2019 at 02:34:54PM -0500, Navid Emamdoost wrote:
> In crypto_reportstat, a new skb is created by nlmsg_new(). This skb is
> leaked if crypto_reportstat_alg() fails. Required release for skb is
> added.
> 
> Fixes: cac5818c25d0 ("crypto: user - Implement a generic crypto statistics")
> Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
> ---
>  crypto/crypto_user_stat.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)

Patch applied.  Thanks.
-- 
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt

^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2019-10-10 12:58 UTC | newest]

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2019-10-04 19:34 [PATCH] crypto: user - fix memory leak in crypto_reportstat Navid Emamdoost
2019-10-05 15:27 ` Markus Elfring
2019-10-10 12:58 ` Herbert Xu

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