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kernel: Kernel: Privilege escalation or denial of service in nf_tables via inverted element activity check

🗓️ 19 May 2026 09:04:01Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 9 Views

Linux kernel nf_tables flaw in nft_map_catchall_activate causes inverted abort check and use-after-free; low-privilege user can DoS.

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Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux10.2aarch64kernel6.12.0-211.7.1.el10_2kernel-6.12.0-211.7.1.el10_2.aarch64.rpm
Red Hat Enterprise Linux10.2ppc64lekernel6.12.0-211.7.1.el10_2kernel-6.12.0-211.7.1.el10_2.ppc64le.rpm
Red Hat Enterprise Linux10.2s390xkernel6.12.0-211.7.1.el10_2kernel-6.12.0-211.7.1.el10_2.s390x.rpm
Red Hat Enterprise Linux10.2x86_64kernel6.12.0-211.7.1.el10_2kernel-6.12.0-211.7.1.el10_2.x86_64.rpm
Red Hat Enterprise Linux10.2aarch64kernel-64k6.12.0-211.7.1.el10_2kernel-64k-6.12.0-211.7.1.el10_2.aarch64.rpm
Red Hat Enterprise Linux10.2aarch64kernel-64k-core6.12.0-211.7.1.el10_2kernel-64k-core-6.12.0-211.7.1.el10_2.aarch64.rpm
Red Hat Enterprise Linux10.2aarch64kernel-64k-debug6.12.0-211.7.1.el10_2kernel-64k-debug-6.12.0-211.7.1.el10_2.aarch64.rpm
Red Hat Enterprise Linux10.2aarch64kernel-64k-debug-core6.12.0-211.7.1.el10_2kernel-64k-debug-core-6.12.0-211.7.1.el10_2.aarch64.rpm
Red Hat Enterprise Linux10.2aarch64kernel-64k-debug-debuginfo6.12.0-211.7.1.el10_2kernel-64k-debug-debuginfo-6.12.0-211.7.1.el10_2.aarch64.rpm
Red Hat Enterprise Linux10.2aarch64kernel-64k-debug-devel6.12.0-211.7.1.el10_2kernel-64k-debug-devel-6.12.0-211.7.1.el10_2.aarch64.rpm
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19 Aug 2026 18:59Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.17.8
EPSS0.00481
SSVC
9