[PATCH] crypto: s390/paes - Fix module aliases

[Herbert Xu <herbert@gondor.apana.org.au>]

On Tue, Sep 17, 2024 at 11:54:30AM +0200, Ingo Franzki wrote:
>
> I used 'make defconfig' on s390x, so nothing special: 

Thanks, it turns out to be an existing bug but it just happens
to have worked.

---8<---
The paes_s390 module didn't declare the correct aliases for the
algorithms that it registered.  Instead it declared an alias for
the non-existent paes algorithm.

The Crypto API will eventually try to load the paes algorithm, to
construct the cbc(paes) instance.  But because the module does not
actually contain a "paes" algorithm, this will fail.

Previously this failure was hidden and the the cbc(paes) lookup will
be retried.  This was fixed recently, thus exposing the buggy alias
in paes_s390.

Replace the bogus paes alias with aliases for the actual algorithms.

Reported-by: Ingo Franzki <ifranzki@linux.ibm.com>
Fixes: e7a4142b35ce ("crypto: api - Fix generic algorithm self-test races")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/arch/s390/crypto/paes_s390.c b/arch/s390/crypto/paes_s390.c
index 99ea3f12c5d2..b8d9f385555d 100644
--- a/arch/s390/crypto/paes_s390.c
+++ b/arch/s390/crypto/paes_s390.c
@@ -802,7 +802,10 @@ static int __init paes_s390_init(void)
 module_init(paes_s390_init);
 module_exit(paes_s390_fini);
 
-MODULE_ALIAS_CRYPTO("paes");
+MODULE_ALIAS_CRYPTO("ecb(paes)");
+MODULE_ALIAS_CRYPTO("cbc(paes)");
+MODULE_ALIAS_CRYPTO("ctr(paes)");
+MODULE_ALIAS_CRYPTO("xts(paes)");
 
 MODULE_DESCRIPTION("Rijndael (AES) Cipher Algorithm with protected keys");
 MODULE_LICENSE("GPL");
-- 
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt