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ndr: skip talloc when pulling empty DATA_BLOB

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Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15574
This commit is contained in:
Douglas Bagnall 2023-12-29 15:15:48 +13:00 committed by Andrew Bartlett
parent ee1b8ae04b
commit c2673b02a7
1 changed files with 6 additions and 0 deletions
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6
librpc/ndr/ndr_basic.c
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@ -1453,6 +1453,12 @@ _PUBLIC_ enum ndr_err_code ndr_pull_DATA_BLOB(struct ndr_pull *ndr, ndr_flags_ty
} else {
NDR_CHECK(ndr_pull_uint3264(ndr, NDR_SCALARS, &length));
}
if (length == 0) {
/* skip the talloc for an empty blob */
blob->data = NULL;
blob->length = 0;
return NDR_ERR_SUCCESS;
}
NDR_PULL_NEED_BYTES(ndr, length);
*blob = data_blob_talloc(ndr->current_mem_ctx, ndr->data+ndr->offset, length);
ndr->offset += length;