VirusTotal/yara
1
0
Fork 0
mirror of https://github.com/VirusTotal/yara.git synced 2026-10-12 02:10:00 +00:00
Code Issues Packages Projects Releases Wiki Activity

Prevent assert in MSVC debug version of isprint() (#2062)

Browse Source
This commit is contained in:
Michael Gillespie
2024-04-05 18:49:35 +02:00
committed by GitHub
parent fedee98f9d
commit 2a9bc0d5e6
1 changed files with 6 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
libyara/modules/pe/pe.c
+6 -2
View File
@@ -2006,15 +2006,19 @@ const char* pe_get_section_full_name(
// Check string
for (uint64_t len = 0; fits_in_pe(pe, string, len + 1); len++)
{
// Prevent sign extension to 32-bits on bytes > 0x7F
// The result negative integer would cause assert in MSVC debug version of isprint()
unsigned int one_char = (unsigned char)(string[len]);
// Valid string
if (string[len] == 0)
if (one_char == 0)
{
*section_full_name_length = len;
return string;
}
// string contain unprintable character
if (!isprint(string[len]))
if (!isprint(one_char))
return NULL;
}