8311645: Memory leak in jspawnhelper spawnChild after JDK-8307990

Backport-of: 401c3dea5d8823bc9c0f40506ddad46e983ebf68
openjdk · Dec 7, 2023 · 9bf8c2e · 9bf8c2e · openjdk-notifier · Dec 7, 2023
1 parent af0f057
commit 9bf8c2e
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/java.base/unix/native/libjava/ProcessImpl_md.c b/src/java.base/unix/native/libjava/ProcessImpl_md.c
@@ -565,6 +565,7 @@ spawnChild(JNIEnv *env, jobject process, ChildStuff *c, const char *helperpath)
 
     /* write the two structs and the data buffer */
     if (writeFully(c->childenv[1], (char *)&magic, sizeof(magic)) != sizeof(magic)) { // magic number first
+        free(buf);
         return -1;
     }
 #ifdef DEBUG
@@ -573,6 +574,7 @@ spawnChild(JNIEnv *env, jobject process, ChildStuff *c, const char *helperpath)
     if (writeFully(c->childenv[1], (char *)c, sizeof(*c)) != sizeof(*c) ||
         writeFully(c->childenv[1], (char *)&sp, sizeof(sp)) != sizeof(sp) ||
         writeFully(c->childenv[1], buf, bufsize) != bufsize) {
+        free(buf);
         return -1;
     }
     /* We're done. Let jspwanhelper know he can't expect any more data from us. */