db576c9f3a
Call initCommonHeader in canonicalMIMEHeaderKey to ensure that commonHeader is initialized before use. Remove all other calls to initCommonHeader, since commonHeader is only used in canonicalMIMEHeaderKey. This prevents a race condition: read of commonHeader before commonHeader has been initialized. Add regression test that triggers the race condition which can be detected by the race detector. Fixes #46363 Change-Id: I00c8c52c6f4c78c0305978c876142c1b388174af Reviewed-on: https://go-review.googlesource.com/c/go/+/397575 Trust: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Bryan Mills <bcmills@google.com> Trust: Bryan Mills <bcmills@google.com> Run-TryBot: Bryan Mills <bcmills@google.com> Auto-Submit: Bryan Mills <bcmills@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> |
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