CVE-2007-3739: mm/mmap.c in the hugetlb kernel, when run on PowerPC systems, does not prevent stack expansion from enterin...

Security readout for executives and security teams

CVE-2007-3739 is an old Linux kernel denial-of-service issue affecting PowerPC systems using hugetlb memory handling. A local user could trigger a kernel OOPS, potentially crashing or disrupting the system. The sources do not show remote exploitation or active exploitation. Exposure is most likely on legacy PowerPC Linux systems with affected kernel versions and local user access. Systems without PowerPC, without affected hugetlb behavior, or without untrusted local users are less likely to be exposed. The bundle lists vendor advisories but no precise affected version matrix. Treat this as a legacy-platform availability risk, not a broad internet-facing emergency. It deserves prompt attention where PowerPC Linux systems still support multiple local users or exposed workloads, but sources do not support emergency escalation for modern non-PowerPC fleets. Mitigation focus: Apply the relevant vendor kernel update for affected distributions.; Review Red Hat, Debian, Ubuntu, and Avaya advisories for product-specific guidance.; Prioritize legacy PowerPC systems that allow local shell or application user access..

Prepared

Jun 29, 2026, 03:38 UTC (UTC+00:00)

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