net: sctp: sctp_auth_make_key_vector: use sctp_auth_create_key
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>
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1 changed files with 3 additions and 5 deletions
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@ -209,12 +209,10 @@ static struct sctp_auth_bytes *sctp_auth_make_key_vector(
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len = random_len + hmacs_len + chunks_len;
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len = random_len + hmacs_len + chunks_len;
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new = kmalloc(sizeof(struct sctp_auth_bytes) + len, gfp);
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new = sctp_auth_create_key(len, gfp);
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if (!new)
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if (!new)
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return NULL;
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return NULL;
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new->len = len;
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memcpy(new->data, random, random_len);
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memcpy(new->data, random, random_len);
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offset += random_len;
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offset += random_len;
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@ -353,8 +351,8 @@ static struct sctp_auth_bytes *sctp_auth_asoc_create_secret(
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secret = sctp_auth_asoc_set_secret(ep_key, first_vector, last_vector,
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secret = sctp_auth_asoc_set_secret(ep_key, first_vector, last_vector,
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gfp);
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gfp);
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out:
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out:
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kfree(local_key_vector);
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sctp_auth_key_put(local_key_vector);
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kfree(peer_key_vector);
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sctp_auth_key_put(peer_key_vector);
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return secret;
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return secret;
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}
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}
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