diff options
Diffstat (limited to 'security/device_cgroup.c')
| -rw-r--r-- | security/device_cgroup.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/security/device_cgroup.c b/security/device_cgroup.c index 5ba78701adc..3aacd0fe717 100644 --- a/security/device_cgroup.c +++ b/security/device_cgroup.c @@ -513,11 +513,14 @@ int devcgroup_inode_mknod(int mode, dev_t dev) struct dev_cgroup *dev_cgroup; struct dev_whitelist_item *wh; + if (!S_ISBLK(mode) && !S_ISCHR(mode)) + return 0; + rcu_read_lock(); dev_cgroup = task_devcgroup(current); - list_for_each_entry(wh, &dev_cgroup->whitelist, list) { + list_for_each_entry_rcu(wh, &dev_cgroup->whitelist, list) { if (wh->type & DEV_ALL) goto acc_check; if ((wh->type & DEV_BLOCK) && !S_ISBLK(mode)) |