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kernel: jbd/jbd2: invalid value of first log block leads to oops

🗓️ 10 Jan 2012 20:10:00Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 3 Views

Journaling Block Device in the Linux kernel 2.6 lets local users cause denial of service by using an extended file system image with an invalid log first block value, triggering a kernel oops.

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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux6x86_64kernel-rt0:2.6.33.9-rt31.79.el6rtkernel-rt-0:2.6.33.9-rt31.79.el6rt.x86_64.rpm
Red Hat Enterprise Linux6x86_64kernel-rt-debug0:2.6.33.9-rt31.79.el6rtkernel-rt-debug-0:2.6.33.9-rt31.79.el6rt.x86_64.rpm
Red Hat Enterprise Linux6x86_64kernel-rt-debug-debuginfo0:2.6.33.9-rt31.79.el6rtkernel-rt-debug-debuginfo-0:2.6.33.9-rt31.79.el6rt.x86_64.rpm
Red Hat Enterprise Linux6x86_64kernel-rt-debug-devel0:2.6.33.9-rt31.79.el6rtkernel-rt-debug-devel-0:2.6.33.9-rt31.79.el6rt.x86_64.rpm
Red Hat Enterprise Linux6x86_64kernel-rt-debuginfo0:2.6.33.9-rt31.79.el6rtkernel-rt-debuginfo-0:2.6.33.9-rt31.79.el6rt.x86_64.rpm
Red Hat Enterprise Linux6x86_64kernel-rt-debuginfo-common-x86_640:2.6.33.9-rt31.79.el6rtkernel-rt-debuginfo-common-x86_64-0:2.6.33.9-rt31.79.el6rt.x86_64.rpm
Red Hat Enterprise Linux6x86_64kernel-rt-devel0:2.6.33.9-rt31.79.el6rtkernel-rt-devel-0:2.6.33.9-rt31.79.el6rt.x86_64.rpm
Red Hat Enterprise Linux6anykernel-rt-doc0:2.6.33.9-rt31.79.el6rtkernel-rt-doc-0:2.6.33.9-rt31.79.el6rt.noarch.rpm
Red Hat Enterprise Linux6anykernel-rt-firmware0:2.6.33.9-rt31.79.el6rtkernel-rt-firmware-0:2.6.33.9-rt31.79.el6rt.noarch.rpm
Red Hat Enterprise Linux6x86_64kernel-rt-trace0:2.6.33.9-rt31.79.el6rtkernel-rt-trace-0:2.6.33.9-rt31.79.el6rt.x86_64.rpm
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21 Nov 2025 17:39Current
7.3High risk
Vulners AI Score7.3
CVSS 22.1
EPSS0.00083
3