http2: fix weight overflow in RFC 7540 write scheduler

We use uint8 (0-255, inclusive) to represent the RFC 7540 priorities
weight (1-256, inclusive). To account for the difference, we add 1 to
the uint8 weight value within sortPriorityNodeSiblingsRFC7540.

However, the addition was done before converting the uint8 type to
float. As a result, when provided a maximum weight value, overflow will
happen and will cause the scheduler to treat the maximum weight as a
minimum weight instead.

This CL fixes the issue by making sure the addition happens after the
type conversion.

Change-Id: I404e87e5ad85fa06d5fa49cda613c93ac8847bdc
Reviewed-on: https://go-review.googlesource.com/c/net/+/714742
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Nicholas Husin <husin@google.com>
2 files changed
tree: 4289d0e2c4f1c976654431bed7f6b1b6823cd316
  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. quic/
  19. route/
  20. trace/
  21. webdav/
  22. websocket/
  23. xsrftoken/
  24. .gitattributes
  25. .gitignore
  26. codereview.cfg
  27. CONTRIBUTING.md
  28. go.mod
  29. go.sum
  30. LICENSE
  31. PATENTS
  32. README.md
README.md

Go Networking

Go Reference

This repository holds supplementary Go networking packages.

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This repository uses Gerrit for code changes. To learn how to submit changes to this repository, see https://go.dev/doc/contribute.

The git repository is https://go.googlesource.com/net.

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