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kernel: Linux kernel: Use-After-Free vulnerability in ATM subsystem

🗓️ 08 Apr 2026 00:16:20Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 7 Views

Linux kernel ATM UAF enables local privilege escalation or DoS via /proc/net/atm/lec due to improper dev_put.

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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux9.2x86_64kernel-rt5.14.0-284.164.1.rt14.449.el9_2kernel-rt-5.14.0-284.164.1.rt14.449.el9_2.x86_64.rpm
Red Hat Enterprise Linux9.2x86_64kernel-rt-core5.14.0-284.164.1.rt14.449.el9_2kernel-rt-core-5.14.0-284.164.1.rt14.449.el9_2.x86_64.rpm
Red Hat Enterprise Linux9.2x86_64kernel-rt-debug5.14.0-284.164.1.rt14.449.el9_2kernel-rt-debug-5.14.0-284.164.1.rt14.449.el9_2.x86_64.rpm
Red Hat Enterprise Linux9.2x86_64kernel-rt-debug-core5.14.0-284.164.1.rt14.449.el9_2kernel-rt-debug-core-5.14.0-284.164.1.rt14.449.el9_2.x86_64.rpm
Red Hat Enterprise Linux9.2x86_64kernel-rt-debug-debuginfo5.14.0-284.164.1.rt14.449.el9_2kernel-rt-debug-debuginfo-5.14.0-284.164.1.rt14.449.el9_2.x86_64.rpm
Red Hat Enterprise Linux9.2x86_64kernel-rt-debug-devel5.14.0-284.164.1.rt14.449.el9_2kernel-rt-debug-devel-5.14.0-284.164.1.rt14.449.el9_2.x86_64.rpm
Red Hat Enterprise Linux9.2x86_64kernel-rt-debug-kvm5.14.0-284.164.1.rt14.449.el9_2kernel-rt-debug-kvm-5.14.0-284.164.1.rt14.449.el9_2.x86_64.rpm
Red Hat Enterprise Linux9.2x86_64kernel-rt-debug-modules5.14.0-284.164.1.rt14.449.el9_2kernel-rt-debug-modules-5.14.0-284.164.1.rt14.449.el9_2.x86_64.rpm
Red Hat Enterprise Linux9.2x86_64kernel-rt-debug-modules-core5.14.0-284.164.1.rt14.449.el9_2kernel-rt-debug-modules-core-5.14.0-284.164.1.rt14.449.el9_2.x86_64.rpm
Red Hat Enterprise Linux9.2x86_64kernel-rt-debug-modules-extra5.14.0-284.164.1.rt14.449.el9_2kernel-rt-debug-modules-extra-5.14.0-284.164.1.rt14.449.el9_2.x86_64.rpm
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