CVE-2011-3638: n/a vulnerability

CVE-2011-3638: fs/ext4/extents.c in the Linux kernel before 3.0 does not mark a modified extent as dirty in certain cases...

fs/ext4/extents.c in the Linux kernel before 3.0 does not mark a modified extent as dirty in certain cases of extent splitting, which allows local users to cause a denial of service (system crash) via vectors involving ext4 umount and mount operations.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 23:37 UTC (UTC+00:00)

Security readout for executives and security teams

This is an old Linux kernel ext4 filesystem bug. A local user could trigger a crash on affected systems through specific ext4 filesystem behavior around mounting and unmounting. The provided sources describe denial of service, not remote compromise or data theft. Exposure is likely limited to systems running Linux kernels before 3.0 or vendor kernels missing the referenced ext4 fix, especially where untrusted local users can interact with ext4-mounted filesystems. Treat as a targeted legacy-system availability risk. It should not outrank remotely exploitable vulnerabilities, but unpatched shared Linux hosts should be remediated because a local user could crash the system. Mitigation focus: Upgrade to Linux kernel 3.0 or a vendor kernel containing the ext4 fix.; Check distribution advisories for backported fixes to older supported kernels.; Prioritize systems with untrusted shell users or shared local access..

Prepared: Jun 15, 2026, 04:24 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: Mar 1, 2013, 11:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

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://github.com/torvalds/linux/commit/667eff35a1f56fa74ce98a0c7c29a40adc1ba4e3CVE reference · x_refsource_CONFIRM
https://bugzilla.redhat.com/show_bug.cgi?id=747942CVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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