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-rw-r--r--compat/win32/syslog.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/compat/win32/syslog.c b/compat/win32/syslog.c
index 6c7c9b6053..161978d720 100644
--- a/compat/win32/syslog.c
+++ b/compat/win32/syslog.c
@@ -43,8 +43,10 @@ void syslog(int priority, const char *fmt, ...)
va_end(ap);
while ((pos = strstr(str, "%1")) != NULL) {
+ char *oldstr = str;
str = realloc(str, st_add(++str_len, 1));
if (!str) {
+ free(oldstr);
warning_errno("realloc failed");
return;
}