From: Haoxiang Li <lihaoxiang@isrc.iscas.ac.cn>
Date: Mon, 30 Mar 2026 03:34:02 +0000 (+0800)
Subject: crypto: ccree - fix a memory leak in cc_mac_digest()
X-Git-Tag: v7.1-rc1~145^2~17
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=02c64052fad03699b9c6d1df2f9b444d17e4ac50;p=thirdparty%2Fkernel%2Flinux.git

crypto: ccree - fix a memory leak in cc_mac_digest()

Add cc_unmap_result() if cc_map_hash_request_final()
fails to prevent potential memory leak.

Fixes: 63893811b0fc ("crypto: ccree - add ahash support")
Cc: stable@vger.kernel.org
Signed-off-by: Haoxiang Li <lihaoxiang@isrc.iscas.ac.cn>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

diff --git a/drivers/crypto/ccree/cc_hash.c b/drivers/crypto/ccree/cc_hash.c
index c6d085c8ff797..73179bf725a71 100644
--- a/drivers/crypto/ccree/cc_hash.c
+++ b/drivers/crypto/ccree/cc_hash.c
@@ -1448,6 +1448,7 @@ static int cc_mac_digest(struct ahash_request *req)
 	if (cc_map_hash_request_final(ctx->drvdata, state, req->src,
 				      req->nbytes, 1, flags)) {
 		dev_err(dev, "map_ahash_request_final() failed\n");
+		cc_unmap_result(dev, state, digestsize, req->result);
 		cc_unmap_req(dev, state, ctx);
 		return -ENOMEM;
 	}