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http2: abort the send_callback if not setup yet

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When Curl_http2_done() gets called before the http2 data is setup all
the way, we cannot send anything and this should just return an error.

Detected by OSS-Fuzz
Bug: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10012
This commit is contained in:
Daniel Stenberg 2018-08-22 09:47:22 +02:00
parent 396fc0843e
commit 78d5302b5c
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GPG Key ID: 5CC908FDB71E12C2
1 changed files with 4 additions and 0 deletions
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4
lib/http2.c
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@ -370,6 +370,10 @@ static ssize_t send_callback(nghttp2_session *h2,
(void)h2;
(void)flags;
if(!c->send_underlying)
/* called before setup properly! */
return NGHTTP2_ERR_CALLBACK_FAILURE;
written = ((Curl_send*)c->send_underlying)(conn, FIRSTSOCKET,
data, length, &result);