initial buildroot for linux 5.15

boot/grub2/0148-templates-Disable-the-os-prober-by-default.patch

@@ -0,0 +1,87 @@
+From e346414725a70e5c74ee87ca14e580c66f517666 Mon Sep 17 00:00:00 2001
+From: Alex Burmashev <alexander.burmashev@oracle.com>
+Date: Tue, 16 Feb 2021 11:12:12 +0100
+Subject: [PATCH] templates: Disable the os-prober by default
+
+The os-prober is enabled by default what may lead to potentially
+dangerous use cases and borderline opening attack vectors. This
+patch disables the os-prober, adds warning messages and updates
+GRUB_DISABLE_OS_PROBER configuration option documentation. This
+way we make it clear that the os-prober usage is not recommended.
+
+Simplistic nature of this change allows downstream vendors, who
+really want os-prober to be enabled out of the box in their
+relevant products, easily revert to it's old behavior.
+
+Reported-by: NyankoSec (<nyanko@10x.moe>, https://twitter.com/NyankoSec),
+             working with SSD Secure Disclosure
+Signed-off-by: Alex Burmashev <alexander.burmashev@oracle.com>
+Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
+Signed-off-by: Stefan Sørensen <stefan.sorensen@spectralink.com>
+---
+ docs/grub.texi              | 18 ++++++++++--------
+ util/grub.d/30_os-prober.in |  5 ++++-
+ 2 files changed, 14 insertions(+), 9 deletions(-)
+
+diff --git a/docs/grub.texi b/docs/grub.texi
+index e302797..45a9f80 100644
+--- a/docs/grub.texi
++++ b/docs/grub.texi
+@@ -1481,10 +1481,13 @@ boot sequence.  If you have problems, set this option to @samp{text} and
+ GRUB will tell Linux to boot in normal text mode.
+ 
+ @item GRUB_DISABLE_OS_PROBER
+-Normally, @command{grub-mkconfig} will try to use the external
+-@command{os-prober} program, if installed, to discover other operating
+-systems installed on the same system and generate appropriate menu entries
+-for them.  Set this option to @samp{true} to disable this.
++The @command{grub-mkconfig} has a feature to use the external
++@command{os-prober} program to discover other operating systems installed on
++the same machine and generate appropriate menu entries for them. It is disabled
++by default since automatic and silent execution of @command{os-prober}, and
++creating boot entries based on that data, is a potential attack vector. Set
++this option to @samp{false} to enable this feature in the
++@command{grub-mkconfig} command.
+ 
+ @item GRUB_OS_PROBER_SKIP_LIST
+ List of space-separated FS UUIDs of filesystems to be ignored from os-prober
+@@ -1812,10 +1815,9 @@ than zero; otherwise 0.
+ @section Multi-boot manual config
+ 
+ Currently autogenerating config files for multi-boot environments depends on
+-os-prober and has several shortcomings. While fixing it is scheduled for the
+-next release, meanwhile you can make use of the power of GRUB syntax and do it
+-yourself. A possible configuration is detailed here, feel free to adjust to your
+-needs.
++os-prober and has several shortcomings. Due to that it is disabled by default.
++It is advised to use the power of GRUB syntax and do it yourself. A possible
++configuration is detailed here, feel free to adjust to your needs.
+ 
+ First create a separate GRUB partition, big enough to hold GRUB. Some of the
+ following entries show how to load OS installer images from this same partition,
+diff --git a/util/grub.d/30_os-prober.in b/util/grub.d/30_os-prober.in
+index 515a68c..99de043 100644
+--- a/util/grub.d/30_os-prober.in
++++ b/util/grub.d/30_os-prober.in
+@@ -26,7 +26,8 @@ export TEXTDOMAINDIR="@localedir@"
+ 
+ . "$pkgdatadir/grub-mkconfig_lib"
+ 
+-if [ "x${GRUB_DISABLE_OS_PROBER}" = "xtrue" ]; then
++if [ "x${GRUB_DISABLE_OS_PROBER}" = "xfalse" ]; then
++  gettext_printf "os-prober will not be executed to detect other bootable partitions.\nSystems on them will not be added to the GRUB boot configuration.\nCheck GRUB_DISABLE_OS_PROBER documentation entry.\n"
+   exit 0
+ fi
+ 
+@@ -39,6 +40,8 @@ OSPROBED="`os-prober | tr ' ' '^' | paste -s -d ' '`"
+ if [ -z "${OSPROBED}" ] ; then
+   # empty os-prober output, nothing doing
+   exit 0
++else
++  grub_warn "$(gettext_printf "os-prober was executed to detect other bootable partitions.\nIt's output will be used to detect bootable binaries on them and create new boot entries.")"
+ fi
+ 
+ osx_entry() {
+-- 
+2.14.2
+