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net: sctp: sctp_auth_make_key_vector: use sctp_auth_create_key

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In sctp_auth_make_key_vector, we allocate a temporary sctp_auth_bytes
structure with kmalloc instead of the sctp_auth_create_key allocator.
Change this to sctp_auth_create_key as it is the case everywhere else,
so that we also can properly free it via sctp_auth_key_put. This makes
it easier for future code changes in the structure and allocator itself,
since a single API is consistently used for this purpose. Also, by
using sctp_auth_create_key we're doing sanity checks over the arguments.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Daniel Borkmann 2013-02-07 23:22:58 +00:00 committed by David S. Miller
parent 3807ff5899
commit 03536e23ac
1 changed files with 3 additions and 5 deletions
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8
net/sctp/auth.c
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@ -209,12 +209,10 @@ static struct sctp_auth_bytes *sctp_auth_make_key_vector(
len = random_len + hmacs_len + chunks_len;
new = kmalloc(sizeof(struct sctp_auth_bytes) + len, gfp);
new = sctp_auth_create_key(len, gfp);
if (!new)
return NULL;
new->len = len;
memcpy(new->data, random, random_len);
offset += random_len;
@ -353,8 +351,8 @@ static struct sctp_auth_bytes *sctp_auth_asoc_create_secret(
secret = sctp_auth_asoc_set_secret(ep_key, first_vector, last_vector,
gfp);
out:
kfree(local_key_vector);
kfree(peer_key_vector);
sctp_auth_key_put(local_key_vector);
sctp_auth_key_put(peer_key_vector);
return secret;
}