CVE-2015-8961: The __ext4_journal_stop function in fs/ext4/ext4_jbd2.c in the Linux kernel before 4.3.3 allows local users...

Security readout for executives and security teams

CVE-2015-8961 is a Linux kernel ext4 filesystem flaw. A person or process with local access could potentially crash the system or gain higher privileges. The sources identify Linux kernels before 4.3.3 as affected, but do not provide CVSS scoring or confirmed active exploitation. Exposure is most likely on Linux systems running kernels before 4.3.3 or vendor kernels missing the referenced ext4 fix. Android devices may also be relevant because the Android security bulletin cites this CVE. Distribution backports mean version checks alone may be incomplete. Prioritize patch validation for shared Linux hosts, developer systems, container platforms, and Android fleets. This is not described as remotely exploitable, but local privilege escalation in the kernel can undermine host isolation and should not be left unresolved. Mitigation focus: Apply vendor kernel updates that include the referenced Linux ext4 fix.; For mainline kernels, move to 4.3.3 or later if applicable.; Check Linux distribution advisories for backported fixes..

Prepared

Jun 13, 2026, 13:16 UTC (UTC+00:00)

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