cb4d292bb6
When a server is configured to support unencrypted HTTP/2, it reads a few bytes from each new connection to see if they contain the HTTP/2 client preface. This read was being done with no timeout applied. Apply the header timeout (since this is essentially reading the first headers from the connection). Hoist the header timeout into the server serve loop so we can use a single timeout to cover both the HTTP/2 preface and the first HTTP/1 headers. Thanks to Vsevolod Naumov and Ainar Garipov from AdGuard for reporting this issue. Fixes #80205 Fixes CVE-2026-56853 Change-Id: I4bbb917e11ccb9616594379ef556cee66a6a6964 Reviewed-on: https://go-review.googlesource.com/c/go/+/797520 LUCI-TryBot-Result: golang-scoped@luci-project-accounts.iam.gserviceaccount.com <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Nicholas Husin <husin@google.com> Reviewed-by: Nicholas Husin <nsh@golang.org>
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