diff options
Diffstat (limited to 'src/H5Snone.c')
| -rw-r--r-- | src/H5Snone.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/src/H5Snone.c b/src/H5Snone.c index b32ac12..c6e862c 100644 --- a/src/H5Snone.c +++ b/src/H5Snone.c @@ -50,7 +50,7 @@ static herr_t H5S__none_release(H5S_t *space); static htri_t H5S__none_is_valid(const H5S_t *space); static hssize_t H5S__none_serial_size(H5S_t *space); static herr_t H5S__none_serialize(H5S_t *space, uint8_t **p); -static herr_t H5S__none_deserialize(H5S_t **space, const uint8_t **p); +static herr_t H5S__none_deserialize(H5S_t **space, const uint8_t **p, const size_t p_size, hbool_t skip); static herr_t H5S__none_bounds(const H5S_t *space, hsize_t *start, hsize_t *end); static herr_t H5S__none_offset(const H5S_t *space, hsize_t *off); static int H5S__none_unlim_dim(const H5S_t *space); @@ -593,12 +593,13 @@ H5S__none_serialize(H5S_t *space, uint8_t **p) REVISION LOG --------------------------------------------------------------------------*/ static herr_t -H5S__none_deserialize(H5S_t **space, const uint8_t **p) +H5S__none_deserialize(H5S_t **space, const uint8_t **p, const size_t p_size, hbool_t skip) { - H5S_t *tmp_space = NULL; /* Pointer to actual dataspace to use, - either *space or a newly allocated one */ - uint32_t version; /* Version number */ - herr_t ret_value = SUCCEED; /* return value */ + H5S_t *tmp_space = NULL; /* Pointer to actual dataspace to use, + either *space or a newly allocated one */ + uint32_t version; /* Version number */ + herr_t ret_value = SUCCEED; /* return value */ + const uint8_t *p_end = *p + p_size - 1; /* Pointer to last valid byte in buffer */ FUNC_ENTER_PACKAGE @@ -618,12 +619,16 @@ H5S__none_deserialize(H5S_t **space, const uint8_t **p) tmp_space = *space; /* Decode version */ + if (H5_IS_KNOWN_BUFFER_OVERFLOW(skip, *p, sizeof(uint32_t), p_end)) + HGOTO_ERROR(H5E_DATASPACE, H5E_OVERFLOW, FAIL, "buffer overflow while decoding selection version") UINT32DECODE(*p, version); if (version < H5S_NONE_VERSION_1 || version > H5S_NONE_VERSION_LATEST) HGOTO_ERROR(H5E_DATASPACE, H5E_BADVALUE, FAIL, "bad version number for none selection") /* Skip over the remainder of the header */ + if (H5_IS_KNOWN_BUFFER_OVERFLOW(skip, *p, 8, p_end)) + HGOTO_ERROR(H5E_DATASPACE, H5E_OVERFLOW, FAIL, "buffer overflow while decoding selection header") *p += 8; /* Change to "none" selection */ |