| commit | 201676095dda7e5b31a5e1d116d10fc22985075e | [log] [tgz] |
|---|---|---|
| author | Dan Carpenter <dan.carpenter@oracle.com> | Thu Mar 07 08:41:22 2019 +0300 |
| committer | Juergen Gross <jgross@suse.com> | Fri Mar 08 17:58:14 2019 +0100 |
| tree | 813e414ea824d48f18cf89c805fba00dd7831fb8 | |
| parent | b1ddd406cd1e9bb51fa90d03ee562c832e38eb52 [diff] |
xen, cpu_hotplug: Prevent an out of bounds access
The "cpu" variable comes from the sscanf() so Smatch marks it as
untrusted data. We can't pass a higher value than "nr_cpu_ids" to
cpu_possible() or it results in an out of bounds access.
Fixes: d68d82afd4c8 ("xen: implement CPU hotplugging")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>