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Fix crash when buffer was reallocated after read_length_callback

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Added test for this crash.
This commit is contained in:
Tatsuhiro Tsujikawa 2014-08-25 23:05:39 +09:00
parent 577512f2ca
commit dd038bf753
2 changed files with 37 additions and 0 deletions
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4
lib/nghttp2_session.c
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@ -5681,6 +5681,10 @@ int nghttp2_session_pack_data(nghttp2_session *session,
DEBUGF(fprintf(stderr, "send: use safe limit payloadlen=%zu",
payloadlen));
} else {
assert(&session->aob.framebufs == bufs);
buf = &bufs->cur->buf;
}
}
datamax = (size_t) payloadlen;

33
tests/nghttp2_session_test.c
View File

@ -3124,6 +3124,39 @@ void test_nghttp2_submit_data_read_length_too_large(void)
CU_ASSERT(NGHTTP2_FLAG_END_STREAM == data_frame->hd.flags);
nghttp2_session_del(session);
/* Check that buffers are expanded */
CU_ASSERT(0 == nghttp2_session_client_new(&session, &callbacks, &ud));
ud.data_source_length = NGHTTP2_MAX_FRAME_SIZE_MAX;
session->remote_settings.max_frame_size = NGHTTP2_MAX_FRAME_SIZE_MAX;
nghttp2_session_open_stream(session, 1, NGHTTP2_STREAM_FLAG_NONE,
&pri_spec_default, NGHTTP2_STREAM_OPENING,
NULL);
CU_ASSERT(0 == nghttp2_submit_data(session,
NGHTTP2_FLAG_END_STREAM, 1, &data_prd));
ud.block_count = 0;
CU_ASSERT(0 == nghttp2_session_send(session));
aob = &session->aob;
data_frame = nghttp2_outbound_item_get_data_frame(aob->item);
framebufs = &aob->framebufs;
buf = &framebufs->head->buf;
nghttp2_frame_unpack_frame_hd(&hd, buf->pos);
CU_ASSERT(NGHTTP2_FLAG_NONE == hd.flags);
CU_ASSERT(nghttp2_min(NGHTTP2_INITIAL_CONNECTION_WINDOW_SIZE,
NGHTTP2_INITIAL_WINDOW_SIZE) == hd.length);
/* frame->hd.flags has these flags */
CU_ASSERT(NGHTTP2_FLAG_END_STREAM == data_frame->hd.flags);
nghttp2_session_del(session);
}
void test_nghttp2_submit_data_read_length_smallest(void)