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kernel: net: qrtr: fix refcount saturation and potential UAF in qrtr_port_remove

🗓️ 14 Sep 2026 10:21:24Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 6 Views

Premature refcount decrement in Linux kernel qrtr qrtr_port_remove enabling UAF or DoS.

Related
Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux9.8aarch64kernel5.14.0-687.47.1.el9_8kernel-5.14.0-687.47.1.el9_8.aarch64.rpm
Red Hat Enterprise Linux9.8ppc64lekernel5.14.0-687.47.1.el9_8kernel-5.14.0-687.47.1.el9_8.ppc64le.rpm
Red Hat Enterprise Linux9.8s390xkernel5.14.0-687.47.1.el9_8kernel-5.14.0-687.47.1.el9_8.s390x.rpm
Red Hat Enterprise Linux9.8x86_64kernel5.14.0-687.47.1.el9_8kernel-5.14.0-687.47.1.el9_8.x86_64.rpm
Red Hat Enterprise Linux9.8aarch64kernel-64k5.14.0-687.47.1.el9_8kernel-64k-5.14.0-687.47.1.el9_8.aarch64.rpm
Red Hat Enterprise Linux9.8aarch64kernel-64k-core5.14.0-687.47.1.el9_8kernel-64k-core-5.14.0-687.47.1.el9_8.aarch64.rpm
Red Hat Enterprise Linux9.8aarch64kernel-64k-debug5.14.0-687.47.1.el9_8kernel-64k-debug-5.14.0-687.47.1.el9_8.aarch64.rpm
Red Hat Enterprise Linux9.8aarch64kernel-64k-debug-core5.14.0-687.47.1.el9_8kernel-64k-debug-core-5.14.0-687.47.1.el9_8.aarch64.rpm
Red Hat Enterprise Linux9.8aarch64kernel-64k-debug-debuginfo5.14.0-687.47.1.el9_8kernel-64k-debug-debuginfo-5.14.0-687.47.1.el9_8.aarch64.rpm
Red Hat Enterprise Linux9.8aarch64kernel-64k-debug-devel5.14.0-687.47.1.el9_8kernel-64k-debug-devel-5.14.0-687.47.1.el9_8.aarch64.rpm
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16 Sep 2026 05:43Current
6.8Medium risk
Vulners AI Score6.8
CVSS 3.17.8
EPSS0.00135
6