CVE-2011-4086

MediumCVSS 4.9/10Last modified Jun 16, 2026

Description

The journal_unmap_buffer function in fs/jbd2/transaction.c in the Linux kernel before 3.3.1 does not properly handle the _Delay and _Unwritten buffer head states, which allows local users to cause a denial of service (system crash) by leveraging the presence of an ext4 filesystem that was mounted with a journal.

Metrics

CVSS 2.0 4.9/10AV:L/AC:L/Au:N/C:N/I:N/A:C

Weakness enumeration

CWE-119

Affected software

No affected versions have been published.

Timeline

Published
Jul 3, 2012
Last modified
Jun 16, 2026
NVD status
Modified

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