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kernel: futex: Drop CLONE_THREAD requirement for private default hash alloc

🗓️ 24 Jul 2026 11:19:45Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 5 Views

Futex hash allocation drops CLONE_THREAD, causing use-after-free with shared memory across VM clones.

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CVE
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24 Jun 202616:28
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Cvelist
CVE-2026-52973 futex: Drop CLONE_THREAD requirement for private default hash alloc
24 Jun 202616:28
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Debian CVE
CVE-2026-52973
24 Jun 202616:28
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24 Jun 202618:32
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NVD
CVE-2026-52973
24 Jun 202617:17
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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux10.2aarch64kernel6.12.0-211.39.1.el10_2kernel-6.12.0-211.39.1.el10_2.aarch64.rpm
Red Hat Enterprise Linux10.2ppc64lekernel6.12.0-211.39.1.el10_2kernel-6.12.0-211.39.1.el10_2.ppc64le.rpm
Red Hat Enterprise Linux10.2s390xkernel6.12.0-211.39.1.el10_2kernel-6.12.0-211.39.1.el10_2.s390x.rpm
Red Hat Enterprise Linux10.2x86_64kernel6.12.0-211.39.1.el10_2kernel-6.12.0-211.39.1.el10_2.x86_64.rpm
Red Hat Enterprise Linux10.2aarch64kernel-64k6.12.0-211.39.1.el10_2kernel-64k-6.12.0-211.39.1.el10_2.aarch64.rpm
Red Hat Enterprise Linux10.2aarch64kernel-64k-core6.12.0-211.39.1.el10_2kernel-64k-core-6.12.0-211.39.1.el10_2.aarch64.rpm
Red Hat Enterprise Linux10.2aarch64kernel-64k-debug6.12.0-211.39.1.el10_2kernel-64k-debug-6.12.0-211.39.1.el10_2.aarch64.rpm
Red Hat Enterprise Linux10.2aarch64kernel-64k-debug-core6.12.0-211.39.1.el10_2kernel-64k-debug-core-6.12.0-211.39.1.el10_2.aarch64.rpm
Red Hat Enterprise Linux10.2aarch64kernel-64k-debug-debuginfo6.12.0-211.39.1.el10_2kernel-64k-debug-debuginfo-6.12.0-211.39.1.el10_2.aarch64.rpm
Red Hat Enterprise Linux10.2aarch64kernel-64k-debug-devel6.12.0-211.39.1.el10_2kernel-64k-debug-devel-6.12.0-211.39.1.el10_2.aarch64.rpm
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24 Jul 2026 20:37Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.17.8
EPSS0.00147
5