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kernel: net: use dst_dev_rcu() in sk_setup_caps()

🗓️ 10 Feb 2026 02:06:00Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 3 Views

Kernel fix applies read copy update protection for dst device in setup_caps and gso_max_size, plus MTU forward paths; ip4 hoplimit may use it.

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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8.10x86_64kernel-rt4.18.0-553.104.1.rt7.445.el8_10kernel-rt-4.18.0-553.104.1.rt7.445.el8_10.x86_64.rpm
Red Hat Enterprise Linux8.10x86_64kernel-rt-core4.18.0-553.104.1.rt7.445.el8_10kernel-rt-core-4.18.0-553.104.1.rt7.445.el8_10.x86_64.rpm
Red Hat Enterprise Linux8.10x86_64kernel-rt-debug4.18.0-553.104.1.rt7.445.el8_10kernel-rt-debug-4.18.0-553.104.1.rt7.445.el8_10.x86_64.rpm
Red Hat Enterprise Linux8.10x86_64kernel-rt-debug-core4.18.0-553.104.1.rt7.445.el8_10kernel-rt-debug-core-4.18.0-553.104.1.rt7.445.el8_10.x86_64.rpm
Red Hat Enterprise Linux8.10x86_64kernel-rt-debug-debuginfo4.18.0-553.104.1.rt7.445.el8_10kernel-rt-debug-debuginfo-4.18.0-553.104.1.rt7.445.el8_10.x86_64.rpm
Red Hat Enterprise Linux8.10x86_64kernel-rt-debug-devel4.18.0-553.104.1.rt7.445.el8_10kernel-rt-debug-devel-4.18.0-553.104.1.rt7.445.el8_10.x86_64.rpm
Red Hat Enterprise Linux8.10x86_64kernel-rt-debug-kvm4.18.0-553.104.1.rt7.445.el8_10kernel-rt-debug-kvm-4.18.0-553.104.1.rt7.445.el8_10.x86_64.rpm
Red Hat Enterprise Linux8.10x86_64kernel-rt-debug-modules4.18.0-553.104.1.rt7.445.el8_10kernel-rt-debug-modules-4.18.0-553.104.1.rt7.445.el8_10.x86_64.rpm
Red Hat Enterprise Linux8.10x86_64kernel-rt-debug-modules-extra4.18.0-553.104.1.rt7.445.el8_10kernel-rt-debug-modules-extra-4.18.0-553.104.1.rt7.445.el8_10.x86_64.rpm
Red Hat Enterprise Linux8.10x86_64kernel-rt-debuginfo4.18.0-553.104.1.rt7.445.el8_10kernel-rt-debuginfo-4.18.0-553.104.1.rt7.445.el8_10.x86_64.rpm
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30 Jul 2026 08:37Current
5.7Medium risk
Vulners AI Score5.7
CVSS 3.17.8
EPSS0.00188
SSVC
CWE-416
read copy updatedst device rcumtu forward
3