Cherry-picking 31e62c2 to fix ptrace 'dumpability' which allows to read root-owned files as an unprivileged user (ssh-keysign-pwn).

Daniel Baumannrequested to merge
daniel/linux:debian/7.0/forky into debian/7.0/forky

Cherry-picking 31e62c2 to fix ptrace 'dumpability' which allows to read root-owned files as an unprivileged user (ssh-keysign-pwn).

Signed-off-by: Daniel Baumann daniel@debian.org

Merge request reports