6.11-stable review patch. If anyone has any objections, please let me know.
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From: Herbert Xu herbert@gondor.apana.org.au
[ Upstream commit ce212d2afca47acd366a2e74c76fe82c31f785ab ]
Return EINVAL if the snprintf check fails when constructing the algorithm names.
Fixes: 8c20982caca4 ("crypto: n2 - Silence gcc format-truncation false positive warnings") Reported-by: kernel test robot lkp@intel.com Reported-by: Dan Carpenter dan.carpenter@linaro.org Closes: https://lore.kernel.org/r/202409090726.TP0WfY7p-lkp@intel.com/ Signed-off-by: Herbert Xu herbert@gondor.apana.org.au Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/crypto/n2_core.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/crypto/n2_core.c b/drivers/crypto/n2_core.c index 251e088a53dff..b11545cc5cb79 100644 --- a/drivers/crypto/n2_core.c +++ b/drivers/crypto/n2_core.c @@ -1353,6 +1353,7 @@ static int __n2_register_one_hmac(struct n2_ahash_alg *n2ahash) ahash->setkey = n2_hmac_async_setkey;
base = &ahash->halg.base; + err = -EINVAL; if (snprintf(base->cra_name, CRYPTO_MAX_ALG_NAME, "hmac(%s)", p->child_alg) >= CRYPTO_MAX_ALG_NAME) goto out_free_p;