http2: handle server errors after sending GOAWAY

The HTTP/2 server uses serverConn.goAwayCode to track whether a
connection has encountered a fatal error. If an error is encountered
after sending a ErrCodeNo GOAWAY, upgrade goAwayCode to reflect the
error status of the connection.

Fixes an issue where a server connection could hang forever waiting
for a clean shutdown that was preempted by a subsequent fatal error.

Fixes CVE-2022-27664
For golang/go#53977

Change-Id: I165b81ab53176c77a68c42976030499d57bb05d3
Reviewed-on: https://team-review.git.corp.google.com/c/golang/go-private/+/1413887
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Roland Shoemaker <bracewell@google.com>
Reviewed-on: https://go-review.googlesource.com/c/net/+/428735
Run-TryBot: Damien Neil <dneil@google.com>
Reviewed-by: Carlos Amedee <carlos@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
2 files changed
tree: 1b466c3b0a1e06aeb79b53d793538437c0b7f6ee
  1. bpf/
  2. context/
  3. dict/
  4. dns/
  5. html/
  6. http/
  7. http2/
  8. icmp/
  9. idna/
  10. internal/
  11. ipv4/
  12. ipv6/
  13. lif/
  14. nettest/
  15. netutil/
  16. proxy/
  17. publicsuffix/
  18. route/
  19. trace/
  20. webdav/
  21. websocket/
  22. xsrftoken/
  23. .gitattributes
  24. .gitignore
  25. codereview.cfg
  26. CONTRIBUTING.md
  27. go.mod
  28. go.sum
  29. LICENSE
  30. PATENTS
  31. README.md
README.md

Go Networking

Go Reference

This repository holds supplementary Go networking libraries.

Download/Install

The easiest way to install is to run go get -u golang.org/x/net. You can also manually git clone the repository to $GOPATH/src/golang.org/x/net.

Report Issues / Send Patches

This repository uses Gerrit for code changes. To learn how to submit changes to this repository, see https://golang.org/doc/contribute.html. The main issue tracker for the net repository is located at https://github.com/golang/go/issues. Prefix your issue with “x/net:” in the subject line, so it is easy to find.