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kernel: ipv6: icmp: clear skb2->cb[] in ip6_err_gen_icmpv6_unreach()

🗓️ 04 Jun 2026 15:52:35Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 14 Views

Kernel IPv6 ICMP error handling flaw allows memory corruption and disclosure or denial via crafted IPv4 ICMP CIPSO.

Related
Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8.8ppc64lebpftool4.18.0-477.145.1.el8_8bpftool-4.18.0-477.145.1.el8_8.ppc64le.rpm
Red Hat Enterprise Linux8.8x86_64bpftool4.18.0-477.145.1.el8_8bpftool-4.18.0-477.145.1.el8_8.x86_64.rpm
Red Hat Enterprise Linux8.8ppc64lebpftool-debuginfo4.18.0-477.145.1.el8_8bpftool-debuginfo-4.18.0-477.145.1.el8_8.ppc64le.rpm
Red Hat Enterprise Linux8.8x86_64bpftool-debuginfo4.18.0-477.145.1.el8_8bpftool-debuginfo-4.18.0-477.145.1.el8_8.x86_64.rpm
Red Hat Enterprise Linux8.8ppc64lekernel4.18.0-477.145.1.el8_8kernel-4.18.0-477.145.1.el8_8.ppc64le.rpm
Red Hat Enterprise Linux8.8x86_64kernel4.18.0-477.145.1.el8_8kernel-4.18.0-477.145.1.el8_8.x86_64.rpm
Red Hat Enterprise Linux8.8noarchkernel-abi-stablelists4.18.0-477.145.1.el8_8kernel-abi-stablelists-4.18.0-477.145.1.el8_8.noarch.rpm
Red Hat Enterprise Linux8.8ppc64lekernel-core4.18.0-477.145.1.el8_8kernel-core-4.18.0-477.145.1.el8_8.ppc64le.rpm
Red Hat Enterprise Linux8.8x86_64kernel-core4.18.0-477.145.1.el8_8kernel-core-4.18.0-477.145.1.el8_8.x86_64.rpm
Red Hat Enterprise Linux8.8ppc64lekernel-debug4.18.0-477.145.1.el8_8kernel-debug-4.18.0-477.145.1.el8_8.ppc64le.rpm
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17 Jul 2026 16:41Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.19.8
EPSS0.00255
14