From 3950cb9fbef2b22182877e5a78003302fa5e0ddf Mon Sep 17 00:00:00 2001 From: Chen Ridong Date: Tue, 11 Mar 2025 08:51:19 +0900 Subject: [PATCH] crypto: bcm - add error check in the ahash_hmac_init function 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: 9d12ba86f818 ("crypto: brcm - Add Broadcom SPU driver") Signed-off-by: Chen Ridong Signed-off-by: Herbert Xu Signed-off-by: Sasha Levin CVE-2024-56681 Signed-off-by: Koichiro Den Signed-off-by: Stefan Bader --- drivers/crypto/bcm/cipher.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/crypto/bcm/cipher.c b/drivers/crypto/bcm/cipher.c index 1a3ecd44cbaf..20f6453670aa 100644 --- a/drivers/crypto/bcm/cipher.c +++ b/drivers/crypto/bcm/cipher.c @@ -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 */