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Damien Neil ea6b5a64dd [release-branch.go1.20] mime/multipart: avoid excessive copy buffer allocations in ReadForm
When copying form data to disk with io.Copy,
allocate only one copy buffer and reuse it rather than
creating two buffers per file (one from io.multiReader.WriteTo,
and a second one from os.File.ReadFrom).

Thanks to Jakob Ackermann (@das7pad) for reporting this issue.

For CVE-2023-24536
For #59153
For #59270

Reviewed-on: https://team-review.git.corp.google.com/c/golang/go-private/+/1802453
Run-TryBot: Damien Neil <dneil@google.com>
Reviewed-by: Julie Qiu <julieqiu@google.com>
Reviewed-by: Roland Shoemaker <bracewell@google.com>
Change-Id: I44ef17c4b4964cdac2858317275594194801fee3
Reviewed-on: https://team-review.git.corp.google.com/c/golang/go-private/+/1802398
Run-TryBot: Roland Shoemaker <bracewell@google.com>
Reviewed-on: https://go-review.googlesource.com/c/go/+/481989
Auto-Submit: Michael Knyszek <mknyszek@google.com>
Run-TryBot: Michael Knyszek <mknyszek@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2023-04-04 16:58:11 +00:00
.github .github: suggest using private browsing in pkgsite template 2023-01-03 18:52:47 +00:00
api api: promote next to go1.20 2022-12-07 16:56:12 +00:00
doc [release-branch.go1.20] time: revert strict parsing of RFC 3339 2023-01-18 20:42:20 +00:00
lib/time lib/time: update to 2022g/2022g 2022-12-07 00:25:27 +00:00
misc [release-branch.go1.20] cmd/compile: re-compile instantiated generic methods in linkshared mode 2023-03-29 18:40:30 +00:00
src [release-branch.go1.20] mime/multipart: avoid excessive copy buffer allocations in ReadForm 2023-04-04 16:58:11 +00:00
test [release-branch.go1.20] cmd/compile: don't assume pointer of a slice is non-nil 2023-03-29 19:07:23 +00:00
.gitattributes all: treat all files as binary, but check in .bat with CRLF 2020-06-08 15:31:43 +00:00
.gitignore internal/buildcfg: move build configuration out of cmd/internal/objabi 2021-04-16 19:20:53 +00:00
CONTRIBUTING.md
LICENSE
PATENTS
README.md README: update from CC-BY-3.0 to CC-BY-4.0 2022-11-02 20:14:56 +00:00
SECURITY.md SECURITY.md: replace golang.org with go.dev 2022-04-26 19:59:47 +00:00
VERSION [release-branch.go1.20] go1.20.2 2023-03-07 16:47:18 +00:00
codereview.cfg [release-branch.go1.20] update codereview.cfg for release-branch.go1.20 2022-12-07 18:00:33 +00:00

README.md

The Go Programming Language

Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.

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