CVE-2011-2689: The gfs2_fallocate function in fs/gfs2/file.c in the Linux kernel before 3.0-rc1 does not ensure that the s...

Security readout for executives and security teams

CVE-2011-2689 is a Linux kernel GFS2 denial-of-service bug. A local user could cause a kernel BUG and system crash under specific low-free-space allocation conditions. The business risk is availability disruption on systems using GFS2, not remote compromise based on the provided sources. Exposure appears limited to Linux systems running affected kernels with GFS2 in use or available to local users. GFS2 is commonly associated with clustered/shared storage, so general-purpose servers without GFS2 are less likely to be affected. Prioritize remediation on production systems using GFS2, especially clustered storage nodes where crashes could affect service availability. Deprioritize systems without GFS2 exposure after validation. Treat as an availability risk requiring normal patch governance rather than an emergency remote-compromise event. Mitigation focus: Apply vendor kernel updates that include the GFS2 fallocate fix.; For Red Hat systems, review RHSA-2011:1065 applicability.; Upgrade affected kernels to a fixed or vendor-backported version..

Prepared

Jun 27, 2026, 18:09 UTC (UTC+00:00)

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