Prevent returning disposed HTTP/1.1 connections to the pool #112383
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/azp run runtime-libraries stress-http |
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MihaZupan
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Feb 11, 2025
src/libraries/System.Net.Http/src/System/Net/Http/SocketsHttpHandler/HttpConnection.cs
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ManickaP
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/azp run runtime-libraries-coreclr outerloop |
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* main: [Android] Run CoreCLR functional tests on Android (dotnet#112283) [LoongArch64] Fix some assertion failures for Debug ILC building Debug NativeAOT testcases. (dotnet#112229) Fix suspicious code fragments (dotnet#112384) `__ComObject` doesn't support dynamic interface map (dotnet#112375) Native DLLs: only load imported DLLs from System32 (dotnet#112359) [main] Update dependencies from dotnet/roslyn (dotnet#112314) Update SVE instructions that writes to GC regs (dotnet#112389) Bring up android+coreclr windows build. (dotnet#112256) Never use heap for return buffers (dotnet#112060) Wait to complete the test before releasing the agile reference. (dotnet#112387) Prevent returning disposed HTTP/1.1 connections to the pool (dotnet#112383) Fingerprint dotnet.js if writing import map to html is enabled (dotnet#112407) Remove duplicate definition of CORECLR_HOSTING_API_LINKAGE (dotnet#112096) Update the exception message to reflect current behavior. (dotnet#112355) Use enum for frametype not v table (dotnet#112166) Enable AltJits build for LoongArch64 and RiscV64 (dotnet#110282) Guard members of MonoType union & fix related bugs (dotnet#111645) Add optional hooks for debugging OpenSSL memory allocations (dotnet#111539) JIT: Optimize struct parameter register accesses in the backend (dotnet#110819) NativeAOT: Cover more opcodes in type preinitializer (dotnet#112073)
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Fixes #31254
Fixes #110577
There are race conditions in HTTP 1.1 response stream reading methods that may prevent the exceptional termination of those methods despite cancellation callbacks firing and disposing the connection, see the discussion starting with #31254 (comment).
As a result, these methods may call
CompleteResponsereturning the disposed connection to the pool.This is a minimal fix for the mentioned issue, but I agree with @MihaZupan that we should rework the HTTP/1.1 cancellation, making sure to forward the CancellationTokens down to the underlying stream instead of relying on CancellationTokenRegistration + Dispose. In case we take this PR, I'm planning to open a new issue to track that work.