--- fs/proc/base.c

+++ fs/proc/base.c

@@ -2840,11 +2840,16 @@ static int proc_pid_fill_cache(struct fi

/* for the /proc/ directory itself, after non-process stuff has been done */

int proc_pid_readdir(struct file * filp, void * dirent, filldir_t filldir)

{

- unsigned int nr = filp->f_pos - FIRST_PROCESS_ENTRY;

- struct task_struct *reaper = get_proc_task(filp->f_path.dentry->d_inode);

+ unsigned int nr;

+ struct task_struct *reaper;

struct tgid_iter iter;

struct pid_namespace *ns;

+ if (filp->f_pos >= PID_MAX_LIMIT + TGID_OFFSET)

+ goto out_no_task;

+ nr = filp->f_pos - FIRST_PROCESS_ENTRY;

+

+ reaper = get_proc_task(filp->f_path.dentry->d_inode);

if (!reaper)

goto out_no_task;