Commit 80f7b355 authored Apr 23, 2015 by Herbert Xu

crypto: aead - Fix corner case in crypto_lookup_aead



When the user explicitly states that they don't care whether the
algorithm has been tested (type = CRYPTO_ALG_TESTED and mask = 0),
there is a corner case where we may erroneously return ENOENT.

This patch fixes it by correcting the logic in the test.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

parent 26739535

crypto/aead.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -489,7 +489,7 @@ struct crypto_alg crypto_lookup_aead(const char name, u32 type, u32 mask)
		return alg;

		if (alg->cra_type == &crypto_aead_type) {
		if ((alg->cra_flags ^ type ^ ~mask) & CRYPTO_ALG_TESTED) {
		if (~alg->cra_flags & (type ^ ~mask) & CRYPTO_ALG_TESTED) {
		crypto_mod_put(alg);
		alg = ERR_PTR(-ENOENT);
		}