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.
Advisories
Source ID Title
Debian DSA Debian DSA DSA-2469-1 linux-2.6 security update
EUVD EUVD EUVD-2011-4037 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.
Ubuntu USN Ubuntu USN USN-1431-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-1432-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-1433-1 Linux kernel (Oneiric backport) vulnerabilities
Ubuntu USN Ubuntu USN USN-1440-1 Linux kernel (Natty backport) vulnerabilities
Ubuntu USN Ubuntu USN USN-1445-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-1446-1 Linux kernel (OMAP4) vulnerabilities
Ubuntu USN Ubuntu USN USN-1453-1 Linux kernel (EC2) vulnerabilities
Ubuntu USN Ubuntu USN USN-1454-1 Linux kernel vulnerability
Ubuntu USN Ubuntu USN USN-1458-1 Linux kernel (OMAP4) vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-06T23:53:32.777Z

Reserved: 2011-10-18T00:00:00

Link: CVE-2011-4086

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2012-07-03T16:40:31.020

Modified: 2025-04-11T00:51:21.963

Link: CVE-2011-4086

cve-icon Redhat

Severity : Moderate

Publid Date: 2012-01-25T00:00:00Z

Links: CVE-2011-4086 - Bugzilla

cve-icon OpenCVE Enrichment

No data.