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A DMA-MMIO reentrancy problem may lead to memory corruption bugs like stack overflow or use-after-free. Summary of the problem from Peter Maydell: https://lore.kernel.org/qemu-devel/CAFEAcA_23vc7hE3iaM-JVA6W38LK4hJoWae5KcknhPRD5fPBZA@mail.gmail.com Reference: https://gitlab.com/qemu-project/qemu/-/issues/556 qemu.git$ git log --no-merges --oneline --grep CVE-2023-0330 b987718bbb hw/scsi/lsi53c895a: Fix reentrancy issues in the LSI controller (CVE-2023-0330) a2e1753b80 memory: prevent dma-reentracy issues Included second commit as well as commit log of a2e1753b80 says it resolves CVE-2023-0330 (From OE-Core rev: 45ce9885351a2344737170e6e810dc67ab3e7ea9) Signed-off-by: Vijay Anusuri <vanusuri@mvista.com> Signed-off-by: Steve Sakoman <steve@sakoman.com>
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.