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ivshmem-client: check the number of vectors 

Check the number of vectors received from the server, to avoid
out of bound array access.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
This commit is contained in:
Marc-André Lureau 2015-06-23 16:41:58 +02:00
parent a75eb03b9f
commit 95204aa951
1 changed files with 5 additions and 0 deletions
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5
contrib/ivshmem-client/ivshmem-client.c
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@ -128,6 +128,11 @@ ivshmem_client_handle_server_msg(IvshmemClient *client)
/* new vector */ /* new vector */
IVSHMEM_CLIENT_DEBUG(client, " new vector %d (fd=%d) for peer id %ld\n", IVSHMEM_CLIENT_DEBUG(client, " new vector %d (fd=%d) for peer id %ld\n",
peer->vectors_count, fd, peer->id); peer->vectors_count, fd, peer->id);
if (peer->vectors_count >= G_N_ELEMENTS(peer->vectors)) {
IVSHMEM_CLIENT_DEBUG(client, "Too many vectors received, failing");
return -1;
}
peer->vectors[peer->vectors_count] = fd; peer->vectors[peer->vectors_count] = fd;
peer->vectors_count++; peer->vectors_count++;