net/http: context cancellation can leave HTTP client with deadlocked HTTP/1.1 connections in Go1.22 [1.22 backport]

[gopherbot]

@neild requested issue #65705 to be considered for backport to the next 1.22 minor release.

Thanks for the nice analysis (and the fix!).

@gopherbot please open backport issue for go1.22. This is significant regression with no workaround.

Edit: s/go1.21/go1.22/

[tibbes]

I think this backport request was accidentally opened against the wrong release. The buggy code wasn't present in 1.21. This should be a backport request for the next 1.22 minor release.

Is it possible to switch the milestone on this issue?

[gopherbot]

Change https://go.dev/cl/566536 mentions this issue: [release-branch.go1.22] net/http: add missing call to decConnsPerHost

[gopherbot]

Closed by merging 16830ab to release-branch.go1.22.