CVE-2008-7256: n/a vulnerability

CVE-2008-7256: mm/shmem.c in the Linux kernel before 2.6.28-rc8, when strict overcommit is enabled and CONFIG_SECURITY is...

mm/shmem.c in the Linux kernel before 2.6.28-rc8, when strict overcommit is enabled and CONFIG_SECURITY is disabled, does not properly handle the export of shmemfs objects by knfsd, which allows attackers to cause a denial of service (NULL pointer dereference and knfsd crash) or possibly have unspecified other impact via unknown vectors. NOTE: this vulnerability exists because of an incomplete fix for CVE-2010-1643.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 11:56 UTC (UTC+00:00)

Security readout for executives and security teams

This is an old Linux kernel flaw that can crash the kernel NFS daemon in a narrow configuration. Exposure depends on strict memory overcommit, CONFIG_SECURITY being disabled, and knfsd exporting shmemfs objects. The confirmed impact is denial of service; sources only mention possible unspecified other impact. Most modern systems are unlikely to be exposed. Relevant exposure is legacy Linux 2.6-era kernels or vendor backports with NFS server use, strict overcommit enabled, CONFIG_SECURITY disabled, and shmemfs objects exported through knfsd. Prioritize validation if legacy Linux NFS servers still support business-critical services. For current supported kernels, urgency is low unless inventory shows this specific configuration. Mitigation focus: Identify any Linux kernels older than 2.6.28-rc8 or related vendor backports.; Apply vendor kernel updates that include the upstream shmem/nfsd overcommit fix.; Avoid exporting shmemfs-backed objects through knfsd on potentially affected systems..

Prepared: Jun 28, 2026, 02:49 UTC (UTC+00:00)

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

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jun 3, 2010, 14:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0CVSS vectors

0Timeline events

0ADP providers

3Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://bugzilla.redhat.com/show_bug.cgi?id=595970CVE reference · x_refsource_CONFIRM
kernel-shmem-dos(59224)CVE reference · vdb-entry, x_refsource_XF

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

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Weakness

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