Commit b3d58eaf authored by Al Viro's avatar Al Viro
Browse files

atomic_open(): be paranoid about may_open() return value 



It should never return positives; however, with Linux S&M crowd
involved, no bogosity is impossible.  Results would be unpleasant...

Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent 0fb1ea09

fs/namei.c

+2 −0
Original line number Diff line number Diff line
@@ -2920,6 +2920,8 @@ static int atomic_open(struct nameidata *nd, struct dentry *dentry, 
		acc_mode = 0;

	}

	error = may_open(&file->f_path, acc_mode, open_flag);

	if (WARN_ON(error > 0))

		error = -EINVAL;

out:

	dput(dentry);

	return error;