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| author |   Jan Beulich <JBeulich@suse.com> | 2013-01-15 13:31:43 +0000 |
|---|---|---|
| committer |   Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2013-01-15 15:57:02 -0500 |
| commit | e5c702d3b268066dc70d619ecff06a08065f343f (patch) | |
| tree | 590b4745bce3d1be08163ff4feedc2de88a24f41 /drivers/xen/cpu_hotplug.c | |
| parent | xen/grant-table: correctly initialize grant table version 1 (diff) | |
| download | linux-dev-e5c702d3b268066dc70d619ecff06a08065f343f.tar.xz linux-dev-e5c702d3b268066dc70d619ecff06a08065f343f.zip | |
Xen: properly bound buffer access when parsing cpu/*/availability
At the same time reduce the local buffers to 16 bytes each.
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'drivers/xen/cpu_hotplug.c')
| -rw-r--r-- | drivers/xen/cpu_hotplug.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/xen/cpu_hotplug.c b/drivers/xen/cpu_hotplug.c index 4dcfced107f5..084041d42c9a 100644 --- a/drivers/xen/cpu_hotplug.c +++ b/drivers/xen/cpu_hotplug.c @@ -25,10 +25,10 @@ static void disable_hotplug_cpu(int cpu) static int vcpu_online(unsigned int cpu) { int err; - char dir[32], state[32]; + char dir[16], state[16]; sprintf(dir, "cpu/%u", cpu); - err = xenbus_scanf(XBT_NIL, dir, "availability", "%s", state); + err = xenbus_scanf(XBT_NIL, dir, "availability", "%15s", state); if (err != 1) { if (!xen_initial_domain()) printk(KERN_ERR "XENBUS: Unable to read cpu state\n"); |