CVE-2011-2918: The Performance Events subsystem in the Linux kernel before 3.1 does not properly handle event overflows as...

Security readout for executives and security teams

CVE-2011-2918 is a Linux kernel availability flaw. On kernels before 3.1, a local user could run a crafted application that triggers a Performance Events overflow bug and hangs the system. This is not described as remote code execution or data theft. Exposure is most relevant to Linux systems running kernels before 3.1 or vendor kernels missing the referenced fix. Risk is higher on multi-user systems, shared hosting, build hosts, research systems, or other environments where untrusted local users can execute applications. Treat this as a contained but real availability risk. It is old and local-only, but affected shared Linux systems could be hung by an authorized or compromised local user. Prioritize patch confirmation on legacy and multi-tenant assets. Mitigation focus: Upgrade to Linux kernel 3.1 or a vendor-supported kernel containing the referenced fix.; Check distribution advisories for backported fixes in older supported kernel packages.; Prioritize shared or multi-user Linux systems where untrusted users can run code..

Prepared

Jun 24, 2026, 12:34 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.