Commit a7a10bce authored by Mikulas Patocka's avatar Mikulas Patocka Committed by Mike Snitzer
Browse files

dm integrity: don't use drivers that have CRYPTO_ALG_ALLOCATES_MEMORY 



Don't use crypto drivers that have the flag CRYPTO_ALG_ALLOCATES_MEMORY
set. These drivers allocate memory and thus they are not suitable for
block I/O processing.

Signed-off-by: default avatarMikulas Patocka <mpatocka@redhat.com>
Signed-off-by: default avatarMike Snitzer <snitzer@redhat.com>
parent 09162bc3

drivers/md/dm-integrity.c

+2 −2
Original line number Diff line number Diff line
@@ -3462,7 +3462,7 @@ static int get_mac(struct crypto_shash **hash, struct alg_spec *a, char **error, 
	int r;



	if (a->alg_string) {

		*hash = crypto_alloc_shash(a->alg_string, 0, 0);

		*hash = crypto_alloc_shash(a->alg_string, 0, CRYPTO_ALG_ALLOCATES_MEMORY);

		if (IS_ERR(*hash)) {

			*error = error_alg;

			r = PTR_ERR(*hash);
@@ -3519,7 +3519,7 @@ static int create_journal(struct dm_integrity_c *ic, char **error) 
		struct journal_completion comp;



		comp.ic = ic;

		ic->journal_crypt = crypto_alloc_skcipher(ic->journal_crypt_alg.alg_string, 0, 0);

		ic->journal_crypt = crypto_alloc_skcipher(ic->journal_crypt_alg.alg_string, 0, CRYPTO_ALG_ALLOCATES_MEMORY);

		if (IS_ERR(ic->journal_crypt)) {

			*error = "Invalid journal cipher";

			r = PTR_ERR(ic->journal_crypt);

CRA Git | Maintained and supported by SUSTech CRA and CCSE