Re: [PATCH v2] proc: fix races against execve() of /proc/PID/fd**

[Cyrill Gorcunov]

On Sat, Aug 27, 2011 at 11:01:47PM +0400, Vasiliy Kulikov wrote:
...
>  
> +static int proc_pid_fd_link_getattr(struct vfsmount *mnt, struct dentry *dentry,
> +		struct kstat *stat)
> +{
> +	struct inode *inode = dentry->d_inode;
> +	struct task_struct *task = get_proc_task(inode);
> +	int rc;
> +

Are we sure if the task will be always valid here?

	if (!task)
		return -ENOENT;

	Cyrill
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