kexec-tools, ppc64: Fix segfault on parsing of large device trees.

ppc64's fs2dt used to use a fixed-size array into which the device tree
was parsed.  There was no bounds checking, so with a large device tree other
heap data ended up getting stomped -- SIGSEGV time.

This patch adds a function, 'dt_reserve', to check whether there's enough space
left prior to writing data to the array.  If not, the array is realloced.

Signed-off-by: Matt Evans <matt@ozlabs.org>
Ack-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Simon Horman <horms@verge.net.au>

0 files changed, 0 insertions, 0 deletions