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Add missing range checks to pdfioArrayCopy and pdfioDictCopy.

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Michael R Sweet
2026-01-08 15:05:12 -05:00
parent fda0963220
commit 846b0c9c7f
3 changed files with 11 additions and 1 deletions
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2
CHANGES.md
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@@ -12,7 +12,9 @@ v1.6.2 - YYYY-MM-DD
------------------- -------------------
- Increased the maximum length of a single string to 128k (Issue #146) - Increased the maximum length of a single string to 128k (Issue #146)
- Added missing range checks to `pdfioArrayCopy` and `pdfioDictCopy`.
- Fixed an error propagation bug when reading too-long values (Issue #146) - Fixed an error propagation bug when reading too-long values (Issue #146)
- Fixed a Clang warning.
v1.6.1 - 2025-12-26 v1.6.1 - 2025-12-26

6
pdfio-array.c
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@@ -1,7 +1,7 @@
// //
// PDF array functions for PDFio. // PDF array functions for PDFio.
// //
// Copyright © 2021-2024 by Michael R Sweet. // Copyright © 2021-2026 by Michael R Sweet.
// //
// Licensed under Apache License v2.0. See the file "LICENSE" for more // Licensed under Apache License v2.0. See the file "LICENSE" for more
// information. // information.
@@ -264,6 +264,10 @@ pdfioArrayCopy(pdfio_file_t *pdf, // I - PDF file
PDFIO_DEBUG("pdfioArrayCopy(pdf=%p, a=%p(%p))\n", (void *)pdf, (void *)a, a ? (void *)a->pdf : NULL); PDFIO_DEBUG("pdfioArrayCopy(pdf=%p, a=%p(%p))\n", (void *)pdf, (void *)a, a ? (void *)a->pdf : NULL);
// Range check input...
if (!pdf || !a)
return (NULL);
// Create the new array... // Create the new array...
if ((na = pdfioArrayCreate(pdf)) == NULL) if ((na = pdfioArrayCreate(pdf)) == NULL)
return (NULL); return (NULL);

4
pdfio-dict.c
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@@ -79,6 +79,10 @@ pdfioDictCopy(pdfio_file_t *pdf, // I - PDF file
PDFIO_DEBUG("pdfioDictCopy(pdf=%p, dict=%p(%p))\n", (void *)pdf, (void *)dict, dict ? (void *)dict->pdf : NULL); PDFIO_DEBUG("pdfioDictCopy(pdf=%p, dict=%p(%p))\n", (void *)pdf, (void *)dict, dict ? (void *)dict->pdf : NULL);
// Range check input...
if (!pdf || !dict)
return (NULL);
// Create the new dictionary... // Create the new dictionary...
if ((ndict = pdfioDictCreate(pdf)) == NULL) if ((ndict = pdfioDictCreate(pdf)) == NULL)
return (NULL); return (NULL);