Description: Sending SysRq command via ICMP echo request
References:
 https://bugzilla.redhat.com/show_bug.cgi?id=1327484
 https://lwn.net/Articles/448790/
Notes:
 carnil> This CVE is in effect only when the rt featureset
 carnil> is enabled, and the aptch features/all/rt/ping-sysrq.patch
 carnil> is active.
 bwh> ... and when the feature is enabled by setting a sysctl.  So far
 bwh> as I can see, this is a debug feature that was not meant to be
 bwh> enabled on production systems.
Bugs:
upstream: N/A "Vulnerable code not present"
3.16-upstream-stable: N/A "Vulnerable code not present"
3.2-upstream-stable: N/A "Vulnerable code not present"
sid: N/A "Vulnerable code not present"
3.16-jessie-security: N/A "Vulnerable code not present"
3.2-wheezy-security: ignored "Debug feature works as intended"