be062b7f61
getOrAddWeakHandle is very careful about keeping its input alive across the operation, but not very careful about keeping the heap-allocated handle it creates alive. In fact, there's a window in this function where it is *only* visible via the special. Specifically, the window of time between when the handle is stored in the special and when the special actually becomes visible to the GC. (If we fail to add the special because it already exists, that case is fine. We don't even use the same handle value, but the one we obtain from the attached GC-visible special, *and* we return that value, so it remains live.) For #70455. Fixes #70469. Change-Id: Iadaff0cfb93bcaf61ba2b05be7fa0519c481de82 Reviewed-on: https://go-review.googlesource.com/c/go/+/630316 Auto-Submit: Michael Knyszek <mknyszek@google.com> Reviewed-by: Cherry Mui <cherryyz@google.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> |
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The Go Programming Language
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