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kernel: jbd2: unmapped buffer with _Unwritten or _Delay flags set can lead to DoS

🗓️ 15 May 2012 20:55:00Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 2 Views

Linux kernel jbd2 unmapped buffers with _Unwritten or _Delay flags can cause denial of service on file systems using a journal.

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Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux6i686kernel0:2.6.32-220.17.1.el6kernel-0:2.6.32-220.17.1.el6.i686.rpm
Red Hat Enterprise Linux6ppc64kernel0:2.6.32-220.17.1.el6kernel-0:2.6.32-220.17.1.el6.ppc64.rpm
Red Hat Enterprise Linux6s390xkernel0:2.6.32-220.17.1.el6kernel-0:2.6.32-220.17.1.el6.s390x.rpm
Red Hat Enterprise Linux6x86_64kernel0:2.6.32-220.17.1.el6kernel-0:2.6.32-220.17.1.el6.x86_64.rpm
Red Hat Enterprise Linux6ppc64kernel-bootwrapper0:2.6.32-220.17.1.el6kernel-bootwrapper-0:2.6.32-220.17.1.el6.ppc64.rpm
Red Hat Enterprise Linux6i686kernel-debug0:2.6.32-220.17.1.el6kernel-debug-0:2.6.32-220.17.1.el6.i686.rpm
Red Hat Enterprise Linux6ppc64kernel-debug0:2.6.32-220.17.1.el6kernel-debug-0:2.6.32-220.17.1.el6.ppc64.rpm
Red Hat Enterprise Linux6s390xkernel-debug0:2.6.32-220.17.1.el6kernel-debug-0:2.6.32-220.17.1.el6.s390x.rpm
Red Hat Enterprise Linux6x86_64kernel-debug0:2.6.32-220.17.1.el6kernel-debug-0:2.6.32-220.17.1.el6.x86_64.rpm
Red Hat Enterprise Linux6i686kernel-debug-debuginfo0:2.6.32-220.17.1.el6kernel-debug-debuginfo-0:2.6.32-220.17.1.el6.i686.rpm
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21 Nov 2025 17:40Current
5.9Medium risk
Vulners AI Score5.9
CVSS 24.9
EPSS0.00391
2