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Yongxin Liu 141bf3fdb6 grub: fix several CVEs in grub 2.04
Backport patches from https://git.savannah.gnu.org/git/grub.git
to fix some CVEs. Here is the list.

CVE-2020-14308:
0001-calloc-Make-sure-we-always-have-an-overflow-checking.patch
0002-lvm-Add-LVM-cache-logical-volume-handling.patch
0003-calloc-Use-calloc-at-most-places.patch

CVE-2020-14309, CVE-2020-14310, CVE-2020-14311:
0004-safemath-Add-some-arithmetic-primitives-that-check-f.patch
0005-malloc-Use-overflow-checking-primitives-where-we-do-.patch

CVE-2020-15706:
0006-script-Remove-unused-fields-from-grub_script_functio.patch
0007-script-Avoid-a-use-after-free-when-redefining-a-func.patch

CVE-2020-15707:
0008-linux-Fix-integer-overflows-in-initrd-size-handling.patch

(From OE-Core rev: 67329184985a03534f11f95e9df5f9fb2305a261)

Signed-off-by: Yongxin Liu <yongxin.liu@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2020-10-30 13:04:39 +00:00
2020-10-30 13:04:39 +00:00

QEMU Emulation Targets
======================

To simplify development, the build system supports building images to
work with the QEMU emulator in system emulation mode. Several architectures
are currently supported in 32 and 64 bit variants:

  * ARM (qemuarm + qemuarm64)
  * x86 (qemux86 + qemux86-64)
  * PowerPC (qemuppc only)
  * MIPS (qemumips + qemumips64)

Use of the QEMU images is covered in the Yocto Project Reference Manual.
The appropriate MACHINE variable value corresponding to the target is given
in brackets.
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