diff options
Diffstat (limited to 'fs/proc/base.c')
| -rw-r--r-- | fs/proc/base.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/fs/proc/base.c b/fs/proc/base.c index f179568b4c76..9c8ca6cd3ce4 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -510,7 +510,7 @@ static ssize_t lstats_write(struct file *file, const char __user *buf, if (!task) return -ESRCH; - clear_all_latency_tracing(task); + clear_tsk_latency_tracing(task); put_task_struct(task); return count; @@ -2535,6 +2535,11 @@ static ssize_t proc_pid_attr_write(struct file * file, const char __user * buf, rcu_read_unlock(); return -EACCES; } + /* Prevent changes to overridden credentials. */ + if (current_cred() != current_real_cred()) { + rcu_read_unlock(); + return -EBUSY; + } rcu_read_unlock(); if (count > PAGE_SIZE) |