From: Gilad Ben-Yossef <gilad@benyossef.com>
Date: Wed, 27 Nov 2019 08:49:08 +0000 (+0200)
Subject: crypto: ccree - fix backlog memory leak
X-Git-Tag: v5.5.3~254
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=8de94237b9c971742f5c38dde04fb9136fc8185c;p=users%2Fdwmw2%2Flinux.git

crypto: ccree - fix backlog memory leak

commit 4df2ef25b3b3618fd708ab484fe6239abd130fec upstream.

Fix brown paper bag bug of not releasing backlog list item buffer
when backlog was consumed causing a memory leak when backlog is
used.

Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Cc: stable@vger.kernel.org # v4.19+
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/crypto/ccree/cc_request_mgr.c b/drivers/crypto/ccree/cc_request_mgr.c
index a947d5a2cf35d..fa35fa78c0000 100644
--- a/drivers/crypto/ccree/cc_request_mgr.c
+++ b/drivers/crypto/ccree/cc_request_mgr.c
@@ -404,6 +404,7 @@ static void cc_proc_backlog(struct cc_drvdata *drvdata)
 		spin_lock(&mgr->bl_lock);
 		list_del(&bli->list);
 		--mgr->bl_len;
+		kfree(bli);
 	}
 
 	spin_unlock(&mgr->bl_lock);