diff options
| author | David S. Miller <davem@davemloft.net> | 2009-06-15 03:02:23 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-06-15 03:02:23 -0700 |
| commit | 9cbc1cb8cd46ce1f7645b9de249b2ce8460129bb (patch) | |
| tree | 8d104ec2a459346b99413b0b77421ca7b9936c1a /fs/proc/base.c | |
| parent | ca44d6e60f9de26281fda203f58b570e1748c015 (diff) | |
| parent | 45e3e1935e2857c54783291107d33323b3ef33c8 (diff) | |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
Documentation/feature-removal-schedule.txt
drivers/scsi/fcoe/fcoe.c
net/core/drop_monitor.c
net/core/net-traces.c
Diffstat (limited to 'fs/proc/base.c')
| -rw-r--r-- | fs/proc/base.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/fs/proc/base.c b/fs/proc/base.c index fb45615943c..1539e630c47 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -1956,7 +1956,7 @@ static struct dentry *proc_pident_instantiate(struct inode *dir, const struct pid_entry *p = ptr; struct inode *inode; struct proc_inode *ei; - struct dentry *error = ERR_PTR(-EINVAL); + struct dentry *error = ERR_PTR(-ENOENT); inode = proc_pid_make_inode(dir->i_sb, task); if (!inode) @@ -2128,9 +2128,15 @@ static ssize_t proc_pid_attr_write(struct file * file, const char __user * buf, if (copy_from_user(page, buf, count)) goto out_free; + /* Guard against adverse ptrace interaction */ + length = mutex_lock_interruptible(&task->cred_guard_mutex); + if (length < 0) + goto out_free; + length = security_setprocattr(task, (char*)file->f_path.dentry->d_name.name, (void*)page, count); + mutex_unlock(&task->cred_guard_mutex); out_free: free_page((unsigned long) page); out: |