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kernel: net/sched: cls_u32 component reference counter leak if tcf_change_indev() fails

🗓️ 21 Nov 2023 11:50:08Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 14 Views

Double-free in net/sched cls_u32 leaks reference counter on tcf_change_indev failure.

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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8.6aarch64bpftool0:4.18.0-372.80.1.el8_6bpftool-0:4.18.0-372.80.1.el8_6.aarch64.rpm
Red Hat Enterprise Linux8.6ppc64lebpftool0:4.18.0-372.80.1.el8_6bpftool-0:4.18.0-372.80.1.el8_6.ppc64le.rpm
Red Hat Enterprise Linux8.6s390xbpftool0:4.18.0-372.80.1.el8_6bpftool-0:4.18.0-372.80.1.el8_6.s390x.rpm
Red Hat Enterprise Linux8.6x86_64bpftool0:4.18.0-372.80.1.el8_6bpftool-0:4.18.0-372.80.1.el8_6.x86_64.rpm
Red Hat Enterprise Linux8.6aarch64bpftool-debuginfo0:4.18.0-372.80.1.el8_6bpftool-debuginfo-0:4.18.0-372.80.1.el8_6.aarch64.rpm
Red Hat Enterprise Linux8.6ppc64lebpftool-debuginfo0:4.18.0-372.80.1.el8_6bpftool-debuginfo-0:4.18.0-372.80.1.el8_6.ppc64le.rpm
Red Hat Enterprise Linux8.6s390xbpftool-debuginfo0:4.18.0-372.80.1.el8_6bpftool-debuginfo-0:4.18.0-372.80.1.el8_6.s390x.rpm
Red Hat Enterprise Linux8.6x86_64bpftool-debuginfo0:4.18.0-372.80.1.el8_6bpftool-debuginfo-0:4.18.0-372.80.1.el8_6.x86_64.rpm
Red Hat Enterprise Linux8.6aarch64kernel0:4.18.0-372.80.1.el8_6kernel-0:4.18.0-372.80.1.el8_6.aarch64.rpm
Red Hat Enterprise Linux8.6ppc64lekernel0:4.18.0-372.80.1.el8_6kernel-0:4.18.0-372.80.1.el8_6.ppc64le.rpm
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6.6Medium risk
Vulners AI Score6.6
CVSS 3.17.8
EPSS0.00458
SSVC
CWE-415
net schedulercls u32reference countertcf change indevprivilege escalation
14