Horms wrote:
> Make sure that base and end do not overflow
>
> Signed-off-by: Simon Horman <[EMAIL PROTECTED]>
>
Tested and working fine.
Thanks
-Sachin
> Index: kexec-tools-testing/kexec/arch/ppc64/fs2dt.c
> ===================================================================
> --- kexec-tools-testing.orig/kexec/arch/ppc64/fs2dt.c 2006-12-11
> 13:22:09.000000000 +0900
> +++ kexec-tools-testing/kexec/arch/ppc64/fs2dt.c 2006-12-11
> 13:24:11.000000000 +0900
> @@ -137,8 +137,10 @@
> die("unrecoverable error: error reading \"%s\": %s\n",
> pathname, strerror(errno));
>
> - base = ((unsigned long long *)buf)[0];
> - end = base + ((unsigned long long *)buf)[1];
> + if (~0ULL - buf[0] < buf[1])
> + die("unrecoverable error: mem property overflow\n");
> + base = buf[0];
> + end = base + buf[1];
>
> for (range = 0; range < usablemem_rgns.size; range++) {
> loc_base = usablemem_rgns.ranges[range].start;
>
> --
>
> --
> Horms
> H: http://www.vergenet.net/~horms/
> W: http://www.valinux.co.jp/en/
>
>
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