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kernel: mptcp: fix slab-use-after-free in __inet_lookup_established

🗓️ 16 Jun 2026 18:39:11Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 9 Views

Kernel MPTCP fix for slab use-after-free in __inet_lookup_established; faulty IPv6 subflow handling.

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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8.10x86_64kernel-rt4.18.0-553.134.1.rt7.475.el8_10kernel-rt-4.18.0-553.134.1.rt7.475.el8_10.x86_64.rpm
Red Hat Enterprise Linux8.10x86_64kernel-rt-core4.18.0-553.134.1.rt7.475.el8_10kernel-rt-core-4.18.0-553.134.1.rt7.475.el8_10.x86_64.rpm
Red Hat Enterprise Linux8.10x86_64kernel-rt-debug4.18.0-553.134.1.rt7.475.el8_10kernel-rt-debug-4.18.0-553.134.1.rt7.475.el8_10.x86_64.rpm
Red Hat Enterprise Linux8.10x86_64kernel-rt-debug-core4.18.0-553.134.1.rt7.475.el8_10kernel-rt-debug-core-4.18.0-553.134.1.rt7.475.el8_10.x86_64.rpm
Red Hat Enterprise Linux8.10x86_64kernel-rt-debug-debuginfo4.18.0-553.134.1.rt7.475.el8_10kernel-rt-debug-debuginfo-4.18.0-553.134.1.rt7.475.el8_10.x86_64.rpm
Red Hat Enterprise Linux8.10x86_64kernel-rt-debug-devel4.18.0-553.134.1.rt7.475.el8_10kernel-rt-debug-devel-4.18.0-553.134.1.rt7.475.el8_10.x86_64.rpm
Red Hat Enterprise Linux8.10x86_64kernel-rt-debug-kvm4.18.0-553.134.1.rt7.475.el8_10kernel-rt-debug-kvm-4.18.0-553.134.1.rt7.475.el8_10.x86_64.rpm
Red Hat Enterprise Linux8.10x86_64kernel-rt-debug-modules4.18.0-553.134.1.rt7.475.el8_10kernel-rt-debug-modules-4.18.0-553.134.1.rt7.475.el8_10.x86_64.rpm
Red Hat Enterprise Linux8.10x86_64kernel-rt-debug-modules-extra4.18.0-553.134.1.rt7.475.el8_10kernel-rt-debug-modules-extra-4.18.0-553.134.1.rt7.475.el8_10.x86_64.rpm
Red Hat Enterprise Linux8.10x86_64kernel-rt-debuginfo4.18.0-553.134.1.rt7.475.el8_10kernel-rt-debuginfo-4.18.0-553.134.1.rt7.475.el8_10.x86_64.rpm
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28 Jul 2026 16:29Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.19.8
EPSS0.00459
9