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kernel: ip6_tunnel: clear skb2->cb[] in ip4ip6_err()

🗓️ 12 Jun 2026 19:50:15Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 13 Views

Kernel Internet Protocol version six tunnel error handling flaw enables buffer overflow, crash.

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Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux10aarch64kernel6.12.0-212.10.el10nvkernel-6.12.0-212.10.el10nv.aarch64.rpm
Red Hat Enterprise Linux10aarch64kernel-64k6.12.0-212.10.el10nvkernel-64k-6.12.0-212.10.el10nv.aarch64.rpm
Red Hat Enterprise Linux10aarch64kernel-64k-core6.12.0-212.10.el10nvkernel-64k-core-6.12.0-212.10.el10nv.aarch64.rpm
Red Hat Enterprise Linux10aarch64kernel-64k-debug6.12.0-212.10.el10nvkernel-64k-debug-6.12.0-212.10.el10nv.aarch64.rpm
Red Hat Enterprise Linux10aarch64kernel-64k-debug-core6.12.0-212.10.el10nvkernel-64k-debug-core-6.12.0-212.10.el10nv.aarch64.rpm
Red Hat Enterprise Linux10aarch64kernel-64k-debug-debuginfo6.12.0-212.10.el10nvkernel-64k-debug-debuginfo-6.12.0-212.10.el10nv.aarch64.rpm
Red Hat Enterprise Linux10aarch64kernel-64k-debug-modules6.12.0-212.10.el10nvkernel-64k-debug-modules-6.12.0-212.10.el10nv.aarch64.rpm
Red Hat Enterprise Linux10aarch64kernel-64k-debug-modules-core6.12.0-212.10.el10nvkernel-64k-debug-modules-core-6.12.0-212.10.el10nv.aarch64.rpm
Red Hat Enterprise Linux10aarch64kernel-64k-debug-modules-extra6.12.0-212.10.el10nvkernel-64k-debug-modules-extra-6.12.0-212.10.el10nv.aarch64.rpm
Red Hat Enterprise Linux10aarch64kernel-64k-debuginfo6.12.0-212.10.el10nvkernel-64k-debuginfo-6.12.0-212.10.el10nv.aarch64.rpm
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17 Jul 2026 16:41Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.19.8
EPSS0.00563
13