Llewellyn/conky
1
0
Fork 0
mirror of https://github.com/Llewellynvdm/conky.git synced 2024-12-27 20:44:56 +00:00
Code Issues Releases Activity

Fix heap use-after-free with setlocale

Browse Source 
In glibc the return value of setlocale() is allocated in static storage,
which may be invalidated by subsequent calls.
This commit is contained in:
Haochen Tong 2019-07-21 00:02:31 +08:00 committed by Brenden Matthews
parent d1a3c0eaa3
commit d467a79fdb
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
src/linux.cc
View File

@ -1069,7 +1069,7 @@ int fscanf_no_i18n(FILE *stream, const char *format, ...) {
va_list ap;
#ifdef BUILD_I18N
const char *oldlocale = setlocale(LC_NUMERIC, nullptr);
char *oldlocale = strdup(setlocale(LC_NUMERIC, nullptr));
setlocale(LC_NUMERIC, "C");
#endif
@ -1078,6 +1078,7 @@ int fscanf_no_i18n(FILE *stream, const char *format, ...) {
va_end(ap);
#ifdef BUILD_I18N
setlocale(LC_NUMERIC, oldlocale);
free(oldlocale);
#endif
return returncode;
}