Al Viro <viro@xxxxxxxxxxxxxxxxxx> writes: > On Sun, Sep 23, 2012 at 07:30:38AM +0100, Al Viro wrote: >> On Sat, Sep 22, 2012 at 10:59:04PM -0700, Eric W. Biederman wrote: >> >> > The test: >> > >> + if (filp->f_vfsmnt->mnt_root == filp->f_dentry) >> > kicks in and no redirection is performed. >> >> Umm... OK, after the first round of recursion. Unless you bind /something/pts >> on /something. > > Other way round, of course... E.g. > mount --bind /dev /dev/pts > mount --bind /dev /dev/pts/pts > etc. enough times to overflow the kernel stack on recursion. Except of course I gave the wrong explanation. I did the open with O_PATH. Since O_PATH never calls open recursion is impossible. Eric _______________________________________________ Containers mailing list Containers@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/containers
