77 lines
3.2 KiB
Diff
77 lines
3.2 KiB
Diff
From 15ffef9628c700156c3149d02fd27ea3409a4eb7 Mon Sep 17 00:00:00 2001
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From: Damien Neil <dneil@google.com>
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Date: Wed, 30 Nov 2022 16:37:07 -0500
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Subject: [PATCH] [release-branch.go1.18] net/http: update bundled
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golang.org/x/net/http2
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Disable cmd/internal/moddeps test, since this update includes PRIVATE
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track fixes.
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For #56350
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For #57008
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Fixes CVE-2022-41717
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Change-Id: I31ebd2b9ae190ef6f7646187103ea1c8a713ff2e
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Reviewed-on: https://team-review.git.corp.google.com/c/golang/go-private/+/1663833
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Reviewed-by: Tatiana Bradley <tatianabradley@google.com>
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Reviewed-by: Julie Qiu <julieqiu@google.com>
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Reviewed-on: https://go-review.googlesource.com/c/go/+/455361
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Run-TryBot: Jenny Rakoczy <jenny@golang.org>
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Reviewed-by: Michael Pratt <mpratt@google.com>
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TryBot-Result: Gopher Robot <gobot@golang.org>
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Reference:https://go-review.googlesource.com/c/go/+/455361
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Conflict: NA
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---
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src/net/http/h2_bundle.go | 18 +++++++++++-------
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1 file changed, 11 insertions(+), 7 deletions(-)
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diff --git a/src/net/http/h2_bundle.go b/src/net/http/h2_bundle.go
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index d7e2f764c8..5433ebdc51 100644
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--- a/src/net/http/h2_bundle.go
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+++ b/src/net/http/h2_bundle.go
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@@ -4189,6 +4189,7 @@ type http2serverConn struct {
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headerTableSize uint32
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peerMaxHeaderListSize uint32 // zero means unknown (default)
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canonHeader map[string]string // http2-lower-case -> Go-Canonical-Case
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+ canonHeaderKeysSize int // canonHeader keys size in bytes
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writingFrame bool // started writing a frame (on serve goroutine or separate)
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writingFrameAsync bool // started a frame on its own goroutine but haven't heard back on wroteFrameCh
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needsFrameFlush bool // last frame write wasn't a flush
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@@ -4368,6 +4369,13 @@ func (sc *http2serverConn) condlogf(err error, format string, args ...interface{
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}
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}
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+// maxCachedCanonicalHeadersKeysSize is an arbitrarily-chosen limit on the size
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+// of the entries in the canonHeader cache.
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+// This should be larger than the size of unique, uncommon header keys likely to
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+// be sent by the peer, while not so high as to permit unreasonable memory usage
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+// if the peer sends an unbounded number of unique header keys.
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+const http2maxCachedCanonicalHeadersKeysSize = 2048
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+
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func (sc *http2serverConn) canonicalHeader(v string) string {
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sc.serveG.check()
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http2buildCommonHeaderMapsOnce()
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@@ -4383,14 +4391,10 @@ func (sc *http2serverConn) canonicalHeader(v string) string {
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sc.canonHeader = make(map[string]string)
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}
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cv = CanonicalHeaderKey(v)
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- // maxCachedCanonicalHeaders is an arbitrarily-chosen limit on the number of
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- // entries in the canonHeader cache. This should be larger than the number
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- // of unique, uncommon header keys likely to be sent by the peer, while not
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- // so high as to permit unreaasonable memory usage if the peer sends an unbounded
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- // number of unique header keys.
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- const maxCachedCanonicalHeaders = 32
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- if len(sc.canonHeader) < maxCachedCanonicalHeaders {
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+ size := 100 + len(v)*2 // 100 bytes of map overhead + key + value
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+ if sc.canonHeaderKeysSize+size <= http2maxCachedCanonicalHeadersKeysSize {
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sc.canonHeader[v] = cv
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+ sc.canonHeaderKeysSize += size
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}
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return cv
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}
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--
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2.33.0
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