server: Return nullopt when process_context is nullptr #14181
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The InstanceImpl::processContext() function returns a ProcessContextOptRef a.k.a. absl::optional<std::reference_wrapper<ProcessContext>>. When InstanceImpl::process_context_ is nullptr, the returned value an absl::optional with a value of std::reference_wrapper<>(nullptr), better known as an illegal reference to nullptr. While everything is fine in the InstanceImpl, anyone who tries to use the returned reference will be greeted with a crash. This commit follows the lead of the initializer of InstanceImpl::api_ and returns absl::nullopt when InstanceImpl::process_context_ is nullptr. Risk: Low Testing: bazel test //test/server:server_test Documentation: N/A Release Notes: N/A Signed-off-by: Justin Mazzola Paluska <[email protected]>
Signed-off-by: Justin Mazzola Paluska <[email protected]>
zuercher
reviewed
Nov 25, 2020
Signed-off-by: Justin Mazzola Paluska <[email protected]>
zuercher
approved these changes
Nov 25, 2020
mpuncel
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Dec 2, 2020
* master: (70 commits) upstream: avoid reset after end_stream in TCP HTTP upstream (envoyproxy#14106) bazelci: add fuzz coverage (envoyproxy#14179) dependencies: allowlist CVE-2020-8277 to prevent false positives. (envoyproxy#14228) cleanup: replace ad-hoc [0, 1] value types with UnitFloat (envoyproxy#14081) Update docs for skywalking tracer (envoyproxy#14210) Fix some errors in the switch statement when decode dubbo response (envoyproxy#14207) Windows: enable tests and envoy-static.exe pdb file (envoyproxy#13688) http: add Kill Request HTTP filter (envoyproxy#14170) dependencies: fix release_dates error behavior. (envoyproxy#14216) thrift filter: support skip decoding data after metadata in the thrift message (envoyproxy#13592) update cares (envoyproxy#14213) docs: clarify behavior of hedge_on_per_try_timeout (envoyproxy#12983) repokitteh: add support for randomized auto-assign. (envoyproxy#14185) [grpc] validate grpc config for illegal characters (envoyproxy#14129) server: Return nullopt when process_context is nullptr (envoyproxy#14181) [Windows] Fix thrift proxy tests (envoyproxy#13220) kafka: add missing unit tests (envoyproxy#14195) doc: mention gperftools explicitly in PPROF.md (envoyproxy#14199) Removed `--use-fake-symbol-table` option. (envoyproxy#14178) filter contract: clarification around local replies (envoyproxy#14193) ... Signed-off-by: Michael Puncel <[email protected]>
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The InstanceImpl::processContext() function returns a ProcessContextOptRef
a.k.a. absl::optional<std::reference_wrapper>. When
InstanceImpl::process_context_ is nullptr, the returned value an
absl::optional with a value of std::reference_wrapper<>(nullptr),
better known as an illegal reference to nullptr. While everything is
fine in the InstanceImpl, anyone who tries to use the returned
reference will be greeted with a crash.
This commit follows the lead of the initializer of InstanceImpl::api_
and returns absl::nullopt when InstanceImpl::process_context_ is
nullptr.
Risk: Low
Testing: bazel test //test/server:server_test
Documentation: N/A
Release Notes: N/A
Signed-off-by: Justin Mazzola Paluska [email protected]