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

🗓️ 13 Mar 2024 09:11:23Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 3 Views

Double free in net/sched cls_u32 leaks counters on tcf_change_indev failure, privilege escalation.

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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux9.0x86_64kernel-rt0:5.14.0-70.93.1.rt21.165.el9_0kernel-rt-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64.rpm
Red Hat Enterprise Linux9.0x86_64kernel-rt-core0:5.14.0-70.93.1.rt21.165.el9_0kernel-rt-core-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64.rpm
Red Hat Enterprise Linux9.0x86_64kernel-rt-debug0:5.14.0-70.93.1.rt21.165.el9_0kernel-rt-debug-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64.rpm
Red Hat Enterprise Linux9.0x86_64kernel-rt-debug-core0:5.14.0-70.93.1.rt21.165.el9_0kernel-rt-debug-core-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64.rpm
Red Hat Enterprise Linux9.0x86_64kernel-rt-debug-debuginfo0:5.14.0-70.93.1.rt21.165.el9_0kernel-rt-debug-debuginfo-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64.rpm
Red Hat Enterprise Linux9.0x86_64kernel-rt-debug-devel0:5.14.0-70.93.1.rt21.165.el9_0kernel-rt-debug-devel-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64.rpm
Red Hat Enterprise Linux9.0x86_64kernel-rt-debug-kvm0:5.14.0-70.93.1.rt21.165.el9_0kernel-rt-debug-kvm-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64.rpm
Red Hat Enterprise Linux9.0x86_64kernel-rt-debug-modules0:5.14.0-70.93.1.rt21.165.el9_0kernel-rt-debug-modules-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64.rpm
Red Hat Enterprise Linux9.0x86_64kernel-rt-debug-modules-extra0:5.14.0-70.93.1.rt21.165.el9_0kernel-rt-debug-modules-extra-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64.rpm
Red Hat Enterprise Linux9.0x86_64kernel-rt-debuginfo0:5.14.0-70.93.1.rt21.165.el9_0kernel-rt-debuginfo-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64.rpm
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28 Jun 2026 12:42Current
6.8Medium risk
Vulners AI Score6.8
CVSS 3.17.8
EPSS0.00458
SSVC
CWE-415
kernel vulnerabilitynet schedcls u32reference counterlocal privilege escalation
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