fix uninitialized/stale use of alloc (%m modifier) flag in scanf

[musl] / src / stdio / vfwscanf.c

diff --git a/src/stdio/vfwscanf.c b/src/stdio/vfwscanf.c
index 760864f..44fac78 100644 (file)
--- a/src/stdio/vfwscanf.c
+++ b/src/stdio/vfwscanf.c
@@ -109,6 +109,8 @@ int vfwscanf(FILE *restrict f, const wchar_t *restrict fmt, va_list ap)
 
        for (p=fmt; *p; p++) {
 
+               alloc = 0;
+
                if (iswspace(*p)) {
                        while (iswspace(p[1])) p++;
                        while (iswspace((c=getwc(f)))) pos++;