From: Eric W. Biederman > Sent: 10 March 2021 19:24 ... > The actual classic chroot escape is. > chdir("/"); > chroot("/somedir"); > chdir("../../../.."); That one is easily checked. I thought something like: chroot("/somedir"); chdir("/somepath"); Friendly process: mvdir("/somedir/some_path", "/bar"); was the actual escape? David - Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK Registration No: 1397386 (Wales)