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Michael Pratt 61e00ae134 debug/buildinfo: stop searchMagic search at EOF 
An invalid executable may claim to have a data section bigger than the
executable, causing readData in searchMagic to hit EOF. Since readData
suppresses all EOF errors, searchData would keep attempting to search
through a potentially huge "section" despite readData continuously
failing.

Fix by suppressing EOF only on partial read. If nothing is read, allow
EOF. Note that most of the admittedly tedious EOF handling in this
package is around ensuring we return errNotGoExe in most cases.

This was discovered by the new fuzz test. This fuzz test was inspired
by #69066, though it has not found that specific bug.

Change-Id: Icf413e996cecc583c084c9e44249b9294c3d8f10
Reviewed-on: https://go-review.googlesource.com/c/go/+/608637
Reviewed-by: Ian Lance Taylor <iant@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
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api crypto/x509,math/rand/v2: implement the encoding.(Binary|Text)Appender 2024-08-21 19:19:57 +00:00
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misc cmd/link: support wasmexport on js/wasm 2024-08-21 01:11:27 +00:00
src debug/buildinfo: stop searchMagic search at EOF 2024-08-27 17:29:18 +00:00
test cmd/compile: regalloc: drop values that aren't used until after a call 2024-08-26 22:29:43 +00:00
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README.md

The Go Programming Language

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

Gopher image Gopher image by Renee French, licensed under Creative Commons 4.0 Attribution license.

Our canonical Git repository is located at https://go.googlesource.com/go. There is a mirror of the repository at https://github.com/golang/go.

Unless otherwise noted, the Go source files are distributed under the BSD-style license found in the LICENSE file.

Download and Install

Binary Distributions

Official binary distributions are available at https://go.dev/dl/.

After downloading a binary release, visit https://go.dev/doc/install for installation instructions.

Install From Source

If a binary distribution is not available for your combination of operating system and architecture, visit https://go.dev/doc/install/source for source installation instructions.

Contributing

Go is the work of thousands of contributors. We appreciate your help!

To contribute, please read the contribution guidelines at https://go.dev/doc/contribute.

Note that the Go project uses the issue tracker for bug reports and proposals only. See https://go.dev/wiki/Questions for a list of places to ask questions about the Go language.