Updated kernel packages that fix one security issue are now available forRed Hat Enterprise Linux 6.The Red Hat Security Response Team has rated this update as havingimportant security impact. A Common Vulnerability Scoring System base score, which gives a detailed severity rating, is available from theCVE link in the References section. The kernel packages contain the Linux kernel, the core of any Linuxoperating system.This update fixes the following security issue:* A race condition was found in the way the Linux kernel's ptraceimplementation handled PTRACE_SETREGS requests when the debuggee was wokendue to a SIGKILL signal instead of being stopped. A local, unprivilegeduser could use this flaw to escalate their privileges. Users should upgrade to these updated packages, which contain a backportedpatch to correct this issue. The system must be rebooted for this update totake effect.