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Andrei Vagin 5930c7de93 syscall: add all ambient capabilities into permitted and inheritable sets 
According to the prctl man page, each capability from the ambient set
must already be present in both  the  permitted  and  the  inheritable
sets  of the process.

exec_linux_test suggests configuring the capabilities in the parent
process. This doesn't look nice, because:
* Capabilities are a per-thread attribute, so we need to use
LockOSThread.
* Need to restore capabilities after creating a process.
* Doesn't work with user namespaces, because a process gets capabilities
when a namespace is created.

Fixes #23152

Change-Id: Iba23e530fc7b9f5182d602fe855f82218f354219
Reviewed-on: https://go-review.googlesource.com/c/go/+/156577
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2019-03-08 20:53:16 +00:00
.github .github: don't render author-facing text in ISSUE_TEMPLATE 2018-11-02 04:47:34 +00:00
api text/scanner: don't liberally consume (invalid) floats or underbars 2019-02-20 20:23:28 +00:00
doc doc: add missing paragraph break in Effective Go 2019-03-07 04:46:03 +00:00
lib/time time: read 64-bit data if available 2019-02-26 23:10:35 +00:00
misc misc: fix typos in various docs 2019-03-07 07:30:06 +00:00
src syscall: add all ambient capabilities into permitted and inheritable sets 2019-03-08 20:53:16 +00:00
test cmd/compile: change the condition flags of floating-point comparisons in arm64 backend 2019-03-07 21:23:52 +00:00
.gitattributes
.gitignore .gitignore: ignore src/cmd/dist/dist 2017-10-28 21:55:49 +00:00
AUTHORS A+C: change email address for Elias Naur 2019-01-23 15:05:26 +00:00
CONTRIBUTING.md all: restore changes from faulty merge/revert 2018-02-12 20:13:59 +00:00
CONTRIBUTORS CONTRIBUTORS: second round of updates for Go 1.12 2019-01-30 18:01:19 +00:00
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README.md README: linkify some paths 2018-06-06 18:07:01 +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.

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