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The Virtio Vring implementation in QEMU allows local OS guest users to cause a denial of service (divide-by-zero error and QEMU process crash) by unsetting vring alignment while updating Virtio rings. Reference: https://nvd.nist.gov/vuln/detail/CVE-2017-17381 Upstream patch: https://git.qemu.org/?p=qemu.git;a=commitdiff;h=758ead31c7e17bf17a9ef2e0ca1c3e86ab296b43 (From OE-Core rev: 92a0513837182e2e9aa6c7d4958e495f4b5b4c47) Signed-off-by: Catalin Enache <catalin.enache@windriver.com> Signed-off-by: Ross Burton <ross.burton@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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.