diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/cgroup.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/kernel/cgroup.c b/kernel/cgroup.c index 93fc15e..ffcf896 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -3871,6 +3871,11 @@ static int cgroup_mkdir(struct inode *dir, struct dentry *dentry, int mode) { struct cgroup *c_parent = dentry->d_parent->d_fsdata; + /* Do not accept '\n' to prevent making /proc/<pid>/cgroup unparsable. + */ + if (strchr(dentry->d_name.name, '\n')) + return -EINVAL; + /* the vfs holds inode->i_mutex already */ return cgroup_create(c_parent, dentry, mode | S_IFDIR); } |