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| author | Daniel Stenberg <daniel@haxx.se> | 2018-09-25 11:48:43 +0200 |
|---|---|---|
| committer | Daniel Stenberg <daniel@haxx.se> | 2018-09-25 11:48:43 +0200 |
| commit | 637088e30e6188436ec53bf70a289a6f70dbac90 (patch) | |
| tree | 40f4695836f14ace7d589df0ede10a695d0bd62b | |
| parent | 4058cf2a7f7e2590c26588c4eb476ac5c029cb5a (diff) | |
| download | curl-bagder/fuzzer-http2-memleak.tar.gz | |
Curl_http2_done: fix memleak in error pathbagder/fuzzer-http2-memleak
Free 'header_recvbuf' unconditionally even if 'h2' isn't (yet) set, for
early failures.
Detected by OSS-Fuzz
Bug: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10669
| -rw-r--r-- | lib/http2.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/lib/http2.c b/lib/http2.c index b1a8213bd..29edfba7a 100644 --- a/lib/http2.c +++ b/lib/http2.c @@ -1142,12 +1142,8 @@ void Curl_http2_done(struct connectdata *conn, bool premature) struct HTTP *http = data->req.protop; struct http_conn *httpc = &conn->proto.httpc; - if(!httpc->h2) /* not HTTP/2 ? */ - return; - - if(data->state.drain) - drained_transfer(data, httpc); - + /* there might be allocated resources done before this got the 'h2' pointer + setup */ if(http->header_recvbuf) { Curl_add_buffer_free(&http->header_recvbuf); Curl_add_buffer_free(&http->trailer_recvbuf); @@ -1161,6 +1157,12 @@ void Curl_http2_done(struct connectdata *conn, bool premature) } } + if(!httpc->h2) /* not HTTP/2 ? */ + return; + + if(data->state.drain) + drained_transfer(data, httpc); + if(premature) { /* RST_STREAM */ if(!nghttp2_submit_rst_stream(httpc->h2, NGHTTP2_FLAG_NONE, |