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kernel: net: sched: UAF via missing handler for TC_ACT_CONSUMED in tcf_qevent_handle

🗓️ 31 Jul 2026 18:18:17Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 3 Views

Linux kernel traffic control flaw: tcf_qevent_handle mishandles consumed socket buffer, causing use after free.

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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8.10aarch64bpftool4.18.0-553.150.1.el8_10bpftool-4.18.0-553.150.1.el8_10.aarch64.rpm
Red Hat Enterprise Linux8.10ppc64lebpftool4.18.0-553.150.1.el8_10bpftool-4.18.0-553.150.1.el8_10.ppc64le.rpm
Red Hat Enterprise Linux8.10s390xbpftool4.18.0-553.150.1.el8_10bpftool-4.18.0-553.150.1.el8_10.s390x.rpm
Red Hat Enterprise Linux8.10x86_64bpftool4.18.0-553.150.1.el8_10bpftool-4.18.0-553.150.1.el8_10.x86_64.rpm
Red Hat Enterprise Linux8.10aarch64bpftool-debuginfo4.18.0-553.150.1.el8_10bpftool-debuginfo-4.18.0-553.150.1.el8_10.aarch64.rpm
Red Hat Enterprise Linux8.10ppc64lebpftool-debuginfo4.18.0-553.150.1.el8_10bpftool-debuginfo-4.18.0-553.150.1.el8_10.ppc64le.rpm
Red Hat Enterprise Linux8.10s390xbpftool-debuginfo4.18.0-553.150.1.el8_10bpftool-debuginfo-4.18.0-553.150.1.el8_10.s390x.rpm
Red Hat Enterprise Linux8.10x86_64bpftool-debuginfo4.18.0-553.150.1.el8_10bpftool-debuginfo-4.18.0-553.150.1.el8_10.x86_64.rpm
Red Hat Enterprise Linux8.10aarch64kernel4.18.0-553.150.1.el8_10kernel-4.18.0-553.150.1.el8_10.aarch64.rpm
Red Hat Enterprise Linux8.10ppc64lekernel4.18.0-553.150.1.el8_10kernel-4.18.0-553.150.1.el8_10.ppc64le.rpm
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01 Aug 2026 02:26Current
6Medium risk
Vulners AI Score6
CVSS 3.19.8
EPSS0.00509
3