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kernel: ext4: fix inconsistency in ext4_fill_flex_info()

🗓️ 13 Nov 2012 15:33:00Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 2 Views

Ext4 fill_flex_info flaw allows remote users to trigger denial of service via large FLEX_BG group size.

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Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux5i686kernel0:2.6.18-308.20.1.el5kernel-0:2.6.18-308.20.1.el5.i686.rpm
Red Hat Enterprise Linux5ia64kernel0:2.6.18-308.20.1.el5kernel-0:2.6.18-308.20.1.el5.ia64.rpm
Red Hat Enterprise Linux5ppc64kernel0:2.6.18-308.20.1.el5kernel-0:2.6.18-308.20.1.el5.ppc64.rpm
Red Hat Enterprise Linux5s390xkernel0:2.6.18-308.20.1.el5kernel-0:2.6.18-308.20.1.el5.s390x.rpm
Red Hat Enterprise Linux5x86_64kernel0:2.6.18-308.20.1.el5kernel-0:2.6.18-308.20.1.el5.x86_64.rpm
Red Hat Enterprise Linux5i686kernel-pae0:2.6.18-308.20.1.el5kernel-PAE-0:2.6.18-308.20.1.el5.i686.rpm
Red Hat Enterprise Linux5i686kernel-pae-debuginfo0:2.6.18-308.20.1.el5kernel-PAE-debuginfo-0:2.6.18-308.20.1.el5.i686.rpm
Red Hat Enterprise Linux5i686kernel-pae-devel0:2.6.18-308.20.1.el5kernel-PAE-devel-0:2.6.18-308.20.1.el5.i686.rpm
Red Hat Enterprise Linux5i686kernel-debug0:2.6.18-308.20.1.el5kernel-debug-0:2.6.18-308.20.1.el5.i686.rpm
Red Hat Enterprise Linux5ia64kernel-debug0:2.6.18-308.20.1.el5kernel-debug-0:2.6.18-308.20.1.el5.ia64.rpm
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21 Nov 2025 17:41Current
7.4High risk
Vulners AI Score7.4
CVSS 27.1
EPSS0.03431
2