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Fix crash in client side DoH code

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This commit fixes a situation when a cstream object could get unlinked
from the list as a result of a cstream->read_cb call. Thus, unlinking
it after the call could crash the program.
This commit is contained in:
Artem Boldariev
2021-05-06 15:14:04 +03:00
parent cd178043d9
commit a9e97f28b7
1 changed files with 1 additions and 1 deletions
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lib/isc/netmgr/http.c
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@@ -528,10 +528,10 @@ call_unlink_cstream_readcb(http_cstream_t *cstream,
isc_result_t result) {
REQUIRE(VALID_HTTP2_SESSION(session));
REQUIRE(cstream != NULL);
ISC_LIST_UNLINK(session->cstreams, cstream, link);
cstream->read_cb(session->handle, result,
&(isc_region_t){ cstream->rbuf, cstream->rbufsize },
cstream->read_cbarg);
ISC_LIST_UNLINK(session->cstreams, cstream, link);
put_http_cstream(session->mctx, cstream);
}