* [PATCH] crypto: af_alg - use sock_kmemdup in alg_setkey_by_key_serial
@ 2026-04-05 19:49 Thorsten Blum
0 siblings, 0 replies; only message in thread
From: Thorsten Blum @ 2026-04-05 19:49 UTC (permalink / raw)
To: Herbert Xu, David S. Miller; +Cc: Thorsten Blum, linux-crypto, linux-kernel
Replace sock_kmalloc() followed by memcpy() with sock_kmemdup() to
simplify alg_setkey_by_key_serial().
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
---
crypto/af_alg.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/crypto/af_alg.c b/crypto/af_alg.c
index 8e0199394984..25d2bfae31dc 100644
--- a/crypto/af_alg.c
+++ b/crypto/af_alg.c
@@ -324,15 +324,13 @@ static int alg_setkey_by_key_serial(struct alg_sock *ask, sockptr_t optval,
return PTR_ERR(ret);
}
- key_data = sock_kmalloc(&ask->sk, key_datalen, GFP_KERNEL);
+ key_data = sock_kmemdup(&ask->sk, ret, key_datalen, GFP_KERNEL);
if (!key_data) {
up_read(&key->sem);
key_put(key);
return -ENOMEM;
}
- memcpy(key_data, ret, key_datalen);
-
up_read(&key->sem);
key_put(key);
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2026-04-05 19:49 [PATCH] crypto: af_alg - use sock_kmemdup in alg_setkey_by_key_serial Thorsten Blum
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