getservbyport_r: fix out-of-bounds buffer read

[musl] / src / misc / getsubopt.c

diff --git a/src/misc/getsubopt.c b/src/misc/getsubopt.c
index dac9bf9..53ee957 100644 (file)
--- a/src/misc/getsubopt.c
+++ b/src/misc/getsubopt.c
@@ -15,7 +15,7 @@ int getsubopt(char **opt, char *const *keys, char **val)
                size_t l = strlen(keys[i]);
                if (strncmp(keys[i], s, l)) continue;
                if (s[l] == '=')
-                       *val = s + l;
+                       *val = s + l + 1;
                else if (s[l]) continue;
                return i;
        }