[Qemu-devel] [Bug 1810956] Re: qemu-2.12.1 crashes when running malicious bootloader.

[Peter Maydell]

This is a bug, obviously, but note that we do not guarantee TCG binary
translation to be a security boundary against malicious code. Don't run
guest code you don't trust inside TCG without further sandboxing around
QEMU. (Much of the code that runs in a TCG configuration is old and
unaudited, so there may be lurking bugs. Configurations using KVM are
the only ones where we treat guest escapes as security bugs.)

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https://bugs.launchpad.net/bugs/1810956

Title:
  qemu-2.12.1 crashes when running malicious bootloader.

Status in QEMU:
  New

Bug description:
  Running specific bootloader on Qemu causes fatal error and 
  hence SIGABRT in /qemu-2.12.1/tcg/tcg.c on line 2684.

  Bootloader binary code is included in attachments.
  The code was generated by assembling a valid bootloader, then
  appending random-bytes from file `/dev/urandom` to the binary file.

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