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

🗓️ 17 Jul 2026 12:55:09Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 7 Views

Linux kernel IPv6 tunnel error handling flaw allows stack overflow from Internet control message version six errors, risking crash or code execution.

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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux7x86_64kernel-rt3.10.0-1160.155.1.rt56.1307.el7kernel-rt-3.10.0-1160.155.1.rt56.1307.el7.x86_64.rpm
Red Hat Enterprise Linux7x86_64kernel-rt-debug3.10.0-1160.155.1.rt56.1307.el7kernel-rt-debug-3.10.0-1160.155.1.rt56.1307.el7.x86_64.rpm
Red Hat Enterprise Linux7x86_64kernel-rt-debug-debuginfo3.10.0-1160.155.1.rt56.1307.el7kernel-rt-debug-debuginfo-3.10.0-1160.155.1.rt56.1307.el7.x86_64.rpm
Red Hat Enterprise Linux7x86_64kernel-rt-debug-devel3.10.0-1160.155.1.rt56.1307.el7kernel-rt-debug-devel-3.10.0-1160.155.1.rt56.1307.el7.x86_64.rpm
Red Hat Enterprise Linux7x86_64kernel-rt-debuginfo3.10.0-1160.155.1.rt56.1307.el7kernel-rt-debuginfo-3.10.0-1160.155.1.rt56.1307.el7.x86_64.rpm
Red Hat Enterprise Linux7x86_64kernel-rt-debuginfo-common-x86_643.10.0-1160.155.1.rt56.1307.el7kernel-rt-debuginfo-common-x86_64-3.10.0-1160.155.1.rt56.1307.el7.x86_64.rpm
Red Hat Enterprise Linux7x86_64kernel-rt-devel3.10.0-1160.155.1.rt56.1307.el7kernel-rt-devel-3.10.0-1160.155.1.rt56.1307.el7.x86_64.rpm
Red Hat Enterprise Linux7noarchkernel-rt-doc3.10.0-1160.155.1.rt56.1307.el7kernel-rt-doc-3.10.0-1160.155.1.rt56.1307.el7.noarch.rpm
Red Hat Enterprise Linux7x86_64kernel-rt-trace3.10.0-1160.155.1.rt56.1307.el7kernel-rt-trace-3.10.0-1160.155.1.rt56.1307.el7.x86_64.rpm
Red Hat Enterprise Linux7x86_64kernel-rt-trace-debuginfo3.10.0-1160.155.1.rt56.1307.el7kernel-rt-trace-debuginfo-3.10.0-1160.155.1.rt56.1307.el7.x86_64.rpm
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