* FAILED: patch "[PATCH] crypto: rsa-pkcs1pad - only allow with rsa" failed to apply to 4.14-stable tree
@ 2022-04-02 12:47 gregkh
0 siblings, 0 replies; only message in thread
From: gregkh @ 2022-04-02 12:47 UTC (permalink / raw)
To: ebiggers, herbert, stable; +Cc: stable
The patch below does not apply to the 4.14-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@vger.kernel.org>.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 9b30430ea356f237945e52f8a3a42158877bd5a9 Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Tue, 18 Jan 2022 16:13:02 -0800
Subject: [PATCH] crypto: rsa-pkcs1pad - only allow with rsa
The pkcs1pad template can be instantiated with an arbitrary akcipher
algorithm, which doesn't make sense; it is specifically an RSA padding
scheme. Make it check that the underlying algorithm really is RSA.
Fixes: 3d5b1ecdea6f ("crypto: rsa - RSA padding algorithm")
Cc: <stable@vger.kernel.org> # v4.5+
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/crypto/rsa-pkcs1pad.c b/crypto/rsa-pkcs1pad.c
index 8ac3e73e8ea6..1b3545781425 100644
--- a/crypto/rsa-pkcs1pad.c
+++ b/crypto/rsa-pkcs1pad.c
@@ -621,6 +621,11 @@ static int pkcs1pad_create(struct crypto_template *tmpl, struct rtattr **tb)
rsa_alg = crypto_spawn_akcipher_alg(&ctx->spawn);
+ if (strcmp(rsa_alg->base.cra_name, "rsa") != 0) {
+ err = -EINVAL;
+ goto err_free_inst;
+ }
+
err = -ENAMETOOLONG;
hash_name = crypto_attr_alg_name(tb[2]);
if (IS_ERR(hash_name)) {
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2022-04-02 12:47 FAILED: patch "[PATCH] crypto: rsa-pkcs1pad - only allow with rsa" failed to apply to 4.14-stable tree gregkh
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