[libvirt] [PATCH 06/10] vl.c: handle invalid NUMA CPU ranges properly
Eric Blake
eblake at redhat.com
Fri Jan 11 21:32:48 UTC 2013
On 01/11/2013 11:15 AM, Eduardo Habkost wrote:
> Add checks for the following cases:
>
> * Empty string: will be ignored and won't set any CPU bitmap,
> parser won't abort.
> * Missing end value after "-": parser will abort.
> * Extra characters after a valid CPU range: parser will abort.
> * "N-M" string where M < N: parser will abort.
> value = strtoull(cpus, &endptr, 10);
> if (*endptr == '-') {
> - endvalue = strtoull(endptr+1, &endptr, 10);
> + endptr++;
> + if (!*endptr) {
> + goto error;
> + }
> + endvalue = strtoull(endptr, &endptr, 10);
> } else {
> endvalue = value;
> }
Still missing a check for '-numa=-2' with no number on the left of '-',
as well as missing a check for overflow for -numa=999999999999999999999999
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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