diff options
Diffstat (limited to 'source3/librpc/ndr/ndr.c')
| -rw-r--r-- | source3/librpc/ndr/ndr.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/source3/librpc/ndr/ndr.c b/source3/librpc/ndr/ndr.c index 5b9eba478a..ab73354540 100644 --- a/source3/librpc/ndr/ndr.c +++ b/source3/librpc/ndr/ndr.c @@ -160,10 +160,17 @@ DATA_BLOB ndr_push_blob(struct ndr_push *ndr) /* - expand the available space in the buffer to 'size' + expand the available space in the buffer to ndr->offset + extra_size */ -NTSTATUS ndr_push_expand(struct ndr_push *ndr, uint32_t size) +NTSTATUS ndr_push_expand(struct ndr_push *ndr, uint32_t extra_size) { + uint32_t size = extra_size + ndr->offset; + + if (size < ndr->offset) { + /* extra_size overflowed the offset */ + return NT_STATUS_NO_MEMORY; + } + if (ndr->alloc_size > size) { return NT_STATUS_OK; } |