Fix memory corruption when using realloc_memory_ranges()

Because realloc_memory_ranges() makes the old memory invalid, and we return
a pointer to memory_range in get_memory_ranges(), we need to copy the contents
in get_memory_ranges().

Some code that calls realloc_memory_ranges() may be triggered by
get_base_ranges() which is called after get_memory_ranges().

Yes, the memory needs to be deleted somewhere, but I don't know currently
where it's the best, and since it's not in a loop and memory is deleted
anyway after program termination I don't want to introduce unneccessary
complexity. The problem is that get_base_ranges() gets called from
architecture independent code and that allocation is PPC64-specific here.

Signed-off-by: Bernhard Walle <bwalle@suse.de>diff --git a/kexec/arch/ppc64/kexec-ppc64.c b/kexec/arch/ppc64/kexec-ppc64.c
index b0d8acd..ad8a31c 100644
Signed-off-by: Bernhard Walle <bwalle@suse.de>
Signed-off-by: Simon Horman <horms@verge.net.au>

0 files changed, 0 insertions, 0 deletions