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crypto: bcm - add error check in the ahash_hmac_init function

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BugLink: https://bugs.launchpad.net/bugs/2101915

[ Upstream commit 19630cf57233e845b6ac57c9c969a4888925467b ]

The ahash_init functions may return fails. The ahash_hmac_init should
not return ok when ahash_init returns error. For an example, ahash_init
will return -ENOMEM when allocation memory is error.

Fixes: 9d12ba86f8 ("crypto: brcm - Add Broadcom SPU driver")
Signed-off-by: Chen Ridong <chenridong@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
CVE-2024-56681
Signed-off-by: Koichiro Den <koichiro.den@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
This commit is contained in:
Chen Ridong
2025-03-11 08:51:19 +09:00
committed by Stefan Bader
parent fcd4b59052
commit 3950cb9fbe
1 changed files with 4 additions and 1 deletions
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drivers/crypto/bcm/cipher.c
+4 -1
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@@ -2415,6 +2415,7 @@ static int ahash_hmac_setkey(struct crypto_ahash *ahash, const u8 *key,
static int ahash_hmac_init(struct ahash_request *req)
{
int ret;
struct iproc_reqctx_s *rctx = ahash_request_ctx(req);
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
struct iproc_ctx_s *ctx = crypto_ahash_ctx(tfm);
@@ -2424,7 +2425,9 @@ static int ahash_hmac_init(struct ahash_request *req)
flow_log("ahash_hmac_init()\n");
/* init the context as a hash */
ahash_init(req);
ret = ahash_init(req);
if (ret)
return ret;
if (!spu_no_incr_hash(ctx)) {
/* SPU-M can do incr hashing but needs sw for outer HMAC */