Description: Null pointer dereference via keyctl
References:
 https://lkml.org/lkml/2016/11/23/477
 http://seclists.org/fulldisclosure/2016/Nov/76
Notes:
Bugs:
upstream: released (4.9-rc7) [f5527fffff3f002b0a6b376163613b82f69de073]
3.16-upstream-stable: released (3.16.40) [mpi-fix-null-ptr-dereference-in-mpi_powm.patch]
3.2-upstream-stable: N/A "Vulnerable code introduced in 3.3-rc1 with cdec9cb5167ab1113ba9c58e395f664d9d3f9acb"
sid: released (4.8.11-1) [bugfix/all/mpi-Fix-NULL-ptr-dereference-in-mpi_powm-ver-3.patch]
3.16-jessie-security: released (3.16.39-1) [bugfix/all/mpi-fix-null-ptr-dereference-in-mpi_powm-ver-3.patch]
3.2-wheezy-security: N/A "Vulnerable code not present"