6.11-stable review patch. If anyone has any objections, please let me know.
------------------
From: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
[ 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@xxxxxxxxx>
Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Closes: https://lore.kernel.org/r/202409090726.TP0WfY7p-lkp@xxxxxxxxx/
Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
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;
--
2.43.0
