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Filename Latest commit message Latest commit date
Josh Poimboeuf 1e47ab3df9 x86/speculation: Include unprivileged eBPF status in Spectre v2 mitigation reporting
commit 44a3918c8245ab10c6c9719dd12e7a8d291980d8 upstream.

With unprivileged eBPF enabled, eIBRS (without retpoline) is vulnerable
to Spectre v2 BHB-based attacks.

When both are enabled, print a warning message and report it in the
'spectre_v2' sysfs vulnerabilities file.

Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
[fllinden@amazon.com: backported to 5.4]
Signed-off-by: Frank van der Linden <fllinden@amazon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-03-11 11:22:37 +01:00
arch x86/speculation: Include unprivileged eBPF status in Spectre v2 mitigation reporting 2022-03-11 11:22:37 +01:00
block
certs
crypto
Documentation Documentation/hw-vuln: Update spectre doc 2022-03-11 11:22:37 +01:00
drivers hamradio: fix macro redefine warning 2022-03-08 19:07:51 +01:00
fs
include x86/speculation: Include unprivileged eBPF status in Spectre v2 mitigation reporting 2022-03-11 11:22:37 +01:00
init
ipc
kernel x86/speculation: Include unprivileged eBPF status in Spectre v2 mitigation reporting 2022-03-11 11:22:37 +01:00
lib
LICENSES
mm
net net: dcb: disable softirqs in dcbnl_flush_dev() 2022-03-08 19:07:51 +01:00
samples
scripts
security
sound
tools x86/speculation: Rename RETPOLINE_AMD to RETPOLINE_LFENCE 2022-03-11 11:22:37 +01:00
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS
Makefile Linux 5.4.183 2022-03-08 19:07:51 +01:00
README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.