Several vulnerabilities have been discovered in the Linux kernel that may lead to a denial of service, privilege escalation or a leak of sensitive data. The Common Vulnerabilities and Exposures project identifies the following problems: Jan Kratochvil reported a local denial of service vulnerability in the ptrace interface for the s390 architecture. Local users can trigger an invalid pointer dereference, leading to a system panic. Eugene Teo reported a lack of capability checks in the kernel driver for Granch SBNI12 leased line adapters (sbni), allowing local users to perform privileged operations. Olaf Kirch discovered an issue with the i915 driver that may allow local users to cause memory corruption by use of an ioctl with insufficient privilege restrictions. Eugene Teo discovered two issues in the SCTP subsystem which allow local users to obtain access to sensitive memory when the SCTP-AUTH extension is enabled.