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kernel: GSM multiplexing race condition leads to privilege escalation

🗓️ 21 Feb 2024 00:33:59Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 4 Views

A race condition in the Linux kernel's mobile communications multiplexor can cause a use-after-free on a device control block during restart, enabling local privilege escalation.

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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8.6aarch64bpftool0:4.18.0-372.93.1.el8_6bpftool-0:4.18.0-372.93.1.el8_6.aarch64.rpm
Red Hat Enterprise Linux8.6ppc64lebpftool0:4.18.0-372.93.1.el8_6bpftool-0:4.18.0-372.93.1.el8_6.ppc64le.rpm
Red Hat Enterprise Linux8.6s390xbpftool0:4.18.0-372.93.1.el8_6bpftool-0:4.18.0-372.93.1.el8_6.s390x.rpm
Red Hat Enterprise Linux8.6x86_64bpftool0:4.18.0-372.93.1.el8_6bpftool-0:4.18.0-372.93.1.el8_6.x86_64.rpm
Red Hat Enterprise Linux8.6aarch64bpftool-debuginfo0:4.18.0-372.93.1.el8_6bpftool-debuginfo-0:4.18.0-372.93.1.el8_6.aarch64.rpm
Red Hat Enterprise Linux8.6ppc64lebpftool-debuginfo0:4.18.0-372.93.1.el8_6bpftool-debuginfo-0:4.18.0-372.93.1.el8_6.ppc64le.rpm
Red Hat Enterprise Linux8.6s390xbpftool-debuginfo0:4.18.0-372.93.1.el8_6bpftool-debuginfo-0:4.18.0-372.93.1.el8_6.s390x.rpm
Red Hat Enterprise Linux8.6x86_64bpftool-debuginfo0:4.18.0-372.93.1.el8_6bpftool-debuginfo-0:4.18.0-372.93.1.el8_6.x86_64.rpm
Red Hat Enterprise Linux8.6aarch64kernel0:4.18.0-372.93.1.el8_6kernel-0:4.18.0-372.93.1.el8_6.aarch64.rpm
Red Hat Enterprise Linux8.6ppc64lekernel0:4.18.0-372.93.1.el8_6kernel-0:4.18.0-372.93.1.el8_6.ppc64le.rpm
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03 Jul 2026 02:31Current
6.9Medium risk
Vulners AI Score6.9
CVSS 3.17
EPSS0.00767
CWE-366
linux kernelrace conditionprivilege escalationuse after freemobile communicationsmultiplexordevice control blockrestart
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