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authorThomas Gleixner <tglx@linutronix.de>2012-11-21 20:31:52 +0100
committerThomas Gleixner <tglx@linutronix.de>2012-11-21 20:31:52 +0100
commit9c3f9e281697d02889c3b08922f3b30be75f56c2 (patch)
treee9f3d68e0019a47b982e2b8644f70eb66a3eff3c /kernel/pid_namespace.c
parentb8f61116c1ce342804a0897b0a80eb4df5f19453 (diff)
parentd6ad418763888f617ac5b4849823e4cd670df1dd (diff)
Merge branch 'fortglx/3.8/time' of git://git.linaro.org/people/jstultz/linux into timers/core
Fix trivial conflicts in: kernel/time/tick-sched.c Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/pid_namespace.c')
-rw-r--r--kernel/pid_namespace.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/kernel/pid_namespace.c b/kernel/pid_namespace.c
index eb00be205811..7b07cc0dfb75 100644
--- a/kernel/pid_namespace.c
+++ b/kernel/pid_namespace.c
@@ -71,12 +71,22 @@ err_alloc:
return NULL;
}
+/* MAX_PID_NS_LEVEL is needed for limiting size of 'struct pid' */
+#define MAX_PID_NS_LEVEL 32
+
static struct pid_namespace *create_pid_namespace(struct pid_namespace *parent_pid_ns)
{
struct pid_namespace *ns;
unsigned int level = parent_pid_ns->level + 1;
- int i, err = -ENOMEM;
+ int i;
+ int err;
+
+ if (level > MAX_PID_NS_LEVEL) {
+ err = -EINVAL;
+ goto out;
+ }
+ err = -ENOMEM;
ns = kmem_cache_zalloc(pid_ns_cachep, GFP_KERNEL);
if (ns == NULL)
goto out;