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kernel: lsm: hold cred_guard_mutex for lsm_set_self_attr()

🗓️ 15 Sep 2026 08:14:42Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 4 Views

Local privilege escalation in Linux kernel LSM via cred_guard_mutex in lsm_set_self_attr().

Related
Packages
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB		CVE-2026-64111
19 Jul 202615:40
–attackerkb
nessus
Tenable Nessus		Amazon Linux 2023 : bpftool6.18, kernel6.18, kernel6.18-devel (ALAS2023-2026-1881)
22 Jun 202600:00
–nessus
nessus
Tenable Nessus		Amazon Linux 2023 : bpftool6.12, kernel6.12, kernel6.12-devel (ALAS2023-2026-1894)
22 Jun 202600:00
–nessus
nessus
Tenable Nessus		Photon OS 5.0: Linux PHSA-2026-5.0-0864
5 Jun 202600:00
–nessus
nessus
Tenable Nessus		Photon OS 5.0: Linux PHSA-2026-5.0-92-0864
10 Aug 202600:00
–nessus
nessus
Tenable Nessus		RHEL 10 : kernel (RHSA-2026:67471)
15 Sep 202600:00
–nessus
nessus
Tenable Nessus		Ubuntu 24.04 LTS / 26.04 LTS / Pro Realtime 24.04 LTS : Linux kernel (NVIDIA) vulnerabilities (USN-8663-1)
26 Aug 202600:00
–nessus
nessus
Tenable Nessus		Ubuntu 26.04 LTS : Linux kernel (NVIDIA BaseOS) vulnerabilities (USN-8664-1)
26 Aug 202600:00
–nessus
nessus
Tenable Nessus		Ubuntu 24.04 LTS / Pro Realtime 24.04 LTS : Linux kernel (GCP) vulnerabilities (USN-8728-1)
7 Sep 202600:00
–nessus
nessus
Tenable Nessus		Ubuntu 22.04 LTS / 24.04 LTS / Pro Realtime 22.04 LTS / Pro Realtime 24.04 LTS : Linux kernel vulnerabilities (USN-8729-1)
7 Sep 202600:00
–nessus
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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux10.2aarch64kernel6.12.0-211.55.1.el10_2kernel-6.12.0-211.55.1.el10_2.aarch64.rpm
Red Hat Enterprise Linux10.2ppc64lekernel6.12.0-211.55.1.el10_2kernel-6.12.0-211.55.1.el10_2.ppc64le.rpm
Red Hat Enterprise Linux10.2s390xkernel6.12.0-211.55.1.el10_2kernel-6.12.0-211.55.1.el10_2.s390x.rpm
Red Hat Enterprise Linux10.2x86_64kernel6.12.0-211.55.1.el10_2kernel-6.12.0-211.55.1.el10_2.x86_64.rpm
Red Hat Enterprise Linux10.2aarch64kernel-64k6.12.0-211.55.1.el10_2kernel-64k-6.12.0-211.55.1.el10_2.aarch64.rpm
Red Hat Enterprise Linux10.2aarch64kernel-64k-core6.12.0-211.55.1.el10_2kernel-64k-core-6.12.0-211.55.1.el10_2.aarch64.rpm
Red Hat Enterprise Linux10.2aarch64kernel-64k-debug6.12.0-211.55.1.el10_2kernel-64k-debug-6.12.0-211.55.1.el10_2.aarch64.rpm
Red Hat Enterprise Linux10.2aarch64kernel-64k-debug-core6.12.0-211.55.1.el10_2kernel-64k-debug-core-6.12.0-211.55.1.el10_2.aarch64.rpm
Red Hat Enterprise Linux10.2aarch64kernel-64k-debug-debuginfo6.12.0-211.55.1.el10_2kernel-64k-debug-debuginfo-6.12.0-211.55.1.el10_2.aarch64.rpm
Red Hat Enterprise Linux10.2aarch64kernel-64k-debug-devel6.12.0-211.55.1.el10_2kernel-64k-debug-devel-6.12.0-211.55.1.el10_2.aarch64.rpm
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17 Sep 2026 15:02Current
6.8Medium risk
Vulners AI Score6.8
CVSS 3.17.1
EPSS0.00135
CWE-412
Linux kernellsm_set_self_attrcred_guard_mutexprivilege escalationSELinux
4