diff options
Diffstat (limited to 'ext/exif/exif.c')
| -rw-r--r-- | ext/exif/exif.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/ext/exif/exif.c b/ext/exif/exif.c index 325711692a..a337775923 100644 --- a/ext/exif/exif.c +++ b/ext/exif/exif.c @@ -3029,11 +3029,11 @@ static int exif_process_user_comment(image_info_type *ImageInfo, char **pszInfoP /* First try to detect BOM: ZERO WIDTH NOBREAK SPACE (FEFF 16) * since we have no encoding support for the BOM yet we skip that. */ - if (!memcmp(szValuePtr, "\xFE\xFF", 2)) { + if (ByteCount >=2 && !memcmp(szValuePtr, "\xFE\xFF", 2)) { decode = "UCS-2BE"; szValuePtr = szValuePtr+2; ByteCount -= 2; - } else if (!memcmp(szValuePtr, "\xFF\xFE", 2)) { + } else if (ByteCount >=2 && !memcmp(szValuePtr, "\xFF\xFE", 2)) { decode = "UCS-2LE"; szValuePtr = szValuePtr+2; ByteCount -= 2; @@ -3906,7 +3906,7 @@ static int exif_scan_thumbnail(image_info_type *ImageInfo) size_t length=2, pos=0; jpeg_sof_info sof_info; - if (!data) { + if (!data || ImageInfo->Thumbnail.size < 4) { return FALSE; /* nothing to do here */ } if (memcmp(data, "\xFF\xD8\xFF", 3)) { |