Patch "crypto: caam/qi2 - fix Chacha20 + Poly1305 self test failure" has been added to the 5.15-stable tree

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This is a note to let you know that I've just added the patch titled

    crypto: caam/qi2 - fix Chacha20 + Poly1305 self test failure

to the 5.15-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     crypto-caam-qi2-fix-chacha20-poly1305-self-test-fail.patch
and it can be found in the queue-5.15 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 8e7a1bce651a8d8ecac288a59a7a119fc147db55
Author: Gaurav Jain <gaurav.jain@xxxxxxx>
Date:   Thu Sep 21 15:14:44 2023 +0530

    crypto: caam/qi2 - fix Chacha20 + Poly1305 self test failure
    
    [ Upstream commit 7b8c6aee0d5b864e70c0da82583f9862e374eaf3 ]
    
    key buffer is not copied in chachapoly_setkey function,
    results in wrong output for encryption/decryption operation.
    
    fix this by memcpy the key in caam_ctx key arrary
    
    Fixes: c10a53367901 ("crypto: caam/qi2 - add support for Chacha20 + Poly1305")
    Signed-off-by: Gaurav Jain <gaurav.jain@xxxxxxx>
    Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/crypto/caam/caamalg_qi2.c b/drivers/crypto/caam/caamalg_qi2.c
index 6753f0e6e55d1..35c4e29033d55 100644
--- a/drivers/crypto/caam/caamalg_qi2.c
+++ b/drivers/crypto/caam/caamalg_qi2.c
@@ -639,7 +639,8 @@ static int chachapoly_setkey(struct crypto_aead *aead, const u8 *key,
 	if (keylen != CHACHA_KEY_SIZE + saltlen)
 		return -EINVAL;
 
-	ctx->cdata.key_virt = key;
+	memcpy(ctx->key, key, keylen);
+	ctx->cdata.key_virt = ctx->key;
 	ctx->cdata.keylen = keylen - saltlen;
 
 	return chachapoly_set_sh_desc(aead);



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