[Xen-devel] [PATCH 0/5] Xen: Remove the of variable length arrays

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

Variable length arrays, while convenient in some cases, are problematic with
small stacks, and can turn logical bugs into stack overflows.  Furthermore,
the code generation behind them is very poor.

Xen has two uses of VLAs which can be fixed easily, and one case where the VLA
logic triggers on a type, which can be worked around.

Andrew Cooper (5):
  x86/PoD: Simplify handling of the quick check
  x86/PoD: Avoid using variable length arrays in p2m_pod_zero_check()
  x86/hvm: Adjust hvmemul_rep_stos() to compile with -Wvla
  ARM/dom0: Avoid using a variable length array in make_memory_node()
  xen: Disallow variable length arrays

 xen/Rules.mk                |  1 +
 xen/arch/arm/domain_build.c |  4 +++-
 xen/arch/x86/hvm/emulate.c  |  6 +++---
 xen/arch/x86/mm/p2m-pod.c   | 26 ++++++++++----------------
 4 files changed, 17 insertions(+), 20 deletions(-)

-- 
2.1.4


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