fix(forwarder): null-check allocations and fix resource leaks in quicforward#5807
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guhetier merged 5 commits intomicrosoft:mainfrom Mar 4, 2026
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…forward - Check MsQuicStream allocs in ConnectionCallback; close raw stream handle on failure instead of leaking it - Check MsQuicConnection allocs in ListenerCallback; return QUIC_STATUS_OUT_OF_MEMORY so MsQuic refuses connection cleanly - Free SendContext before CXPLAT_FRE_ASSERT fires on unexpected send errors in StreamCallback
guhetier
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Feb 23, 2026
guhetier
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Feb 24, 2026
…for CleanUpAutoDelete objects
Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## main #5807 +/- ##
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+ Coverage 85.04% 85.67% +0.63%
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Files 60 60
Lines 18729 18729
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+ Hits 15928 16046 +118
+ Misses 2801 2683 -118 ☔ View full report in Codecov by Sentry. 🚀 New features to boost your workflow:
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guhetier
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Mar 2, 2026
guhetier
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Mar 2, 2026
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Looks good to me, except some nit style.
Add braces Co-authored-by: Guillaume Hetier <hetier.guillaume@gmail.com>
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Done. Thank you! |
guhetier
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Mar 3, 2026
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Description
Fixes #5806.
In quicforward.cpp, MsQuicStream and MsQuicConnection objects are allocated with new(std::nothrow) in ConnectionCallback and ListenerCallback, but the results are never null-checked before being dereferenced. Under OOM conditions this causes a null pointer dereference and crash. The correct guard pattern already exists in MsQuicAutoAcceptListener in msquic.hpp and is applied here consistently.
Ownership notes:
Confirmed via listener.c that failure returns are permitted — MsQuic
refuses the connection and retains handle ownership, so no manual cleanup
of the raw connection handle is needed.
failure, matching the pattern in spinquic.cpp. Sequential allocation is
intentional — MsQuicConnection's constructor calls SetCallbackHandler
immediately, so a consolidated null-check would risk closing a handle
not yet owned by the caller.
Testing
No existing tests cover these OOM paths. Built successfully on Linux (GitHub Codespaces) and validated normal forwarding behavior is unaffected. Reliably triggering these paths requires fault injection that does not currently exist for this code. Happy to add coverage if maintainers have a preferred approach.
Documentation
None.