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http2: fix a resource leak in push_promise()

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Error: RESOURCE_LEAK (CWE-772):
lib/http2.c:532: alloc_fn: Storage is returned from allocation function "duphandle".
lib/http2.c:532: var_assign: Assigning: "newhandle" = storage returned from "duphandle(data)".
lib/http2.c:552: noescape: Resource "newhandle" is not freed or pointed-to in "set_transfer_url".
lib/http2.c:555: leaked_storage: Variable "newhandle" going out of scope leaks the storage it points to.

Closes #6986
This commit is contained in:
Kamil Dudka 2021-04-30 18:18:02 +02:00 committed by Daniel Stenberg
parent 3193170470
commit 3a6058cb97
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lib/http2.c
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@ -581,6 +581,7 @@ static int push_promise(struct Curl_easy *data,
rv = set_transfer_url(newhandle, &heads);
if(rv) {
(void)Curl_close(&newhandle);
rv = CURL_PUSH_DENY;
goto fail;
}