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kernel: vfio/pci: Check BAR resources before exporting a DMABUF

🗓️ 08 Sep 2026 13:08:03Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 11 Views

DMABUF export in Linux kernel vfio/pci doesn't check BAR resources, enabling info disclosure.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
nessus
Tenable Nessus		AlmaLinux 10 : kernel (ALSA-2026:65334)
11 Sep 202600:00
–nessus
nessus
Tenable Nessus		Rocky Linux 10 [CIQ] Security Update: kernel / kernel-64k / kernel-64k-core / kernel-64k-debug / etc Multiple Vulnerabilities (crlsa-2026_65334)
1 Oct 202600:00
–nessus
nessus
Tenable Nessus		Oracle Linux 10 : ELSA-2026-64775-0: / kernel (ELSA-2026-647750)
10 Sep 202600:00
–nessus
nessus
Tenable Nessus		Oracle Linux 10 : ELSA-2026-65334-0: / kernel (ELSA-2026-653340)
15 Sep 202600:00
–nessus
nessus
Tenable Nessus		RHEL 10 : kernel (RHSA-2026:65334)
8 Sep 202600:00
–nessus
nessus
Tenable Nessus		RockyLinux 10 : kernel (RLSA-2026:65334)
10 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		Linux Distros Unpatched Vulnerability : CVE-2026-64042
20 Jul 202600:00
–nessus
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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux10.2aarch64kernel6.12.0-211.53.1.el10_2kernel-6.12.0-211.53.1.el10_2.aarch64.rpm
Red Hat Enterprise Linux10.2ppc64lekernel6.12.0-211.53.1.el10_2kernel-6.12.0-211.53.1.el10_2.ppc64le.rpm
Red Hat Enterprise Linux10.2s390xkernel6.12.0-211.53.1.el10_2kernel-6.12.0-211.53.1.el10_2.s390x.rpm
Red Hat Enterprise Linux10.2x86_64kernel6.12.0-211.53.1.el10_2kernel-6.12.0-211.53.1.el10_2.x86_64.rpm
Red Hat Enterprise Linux10.2aarch64kernel-64k6.12.0-211.53.1.el10_2kernel-64k-6.12.0-211.53.1.el10_2.aarch64.rpm
Red Hat Enterprise Linux10.2aarch64kernel-64k-core6.12.0-211.53.1.el10_2kernel-64k-core-6.12.0-211.53.1.el10_2.aarch64.rpm
Red Hat Enterprise Linux10.2aarch64kernel-64k-debug6.12.0-211.53.1.el10_2kernel-64k-debug-6.12.0-211.53.1.el10_2.aarch64.rpm
Red Hat Enterprise Linux10.2aarch64kernel-64k-debug-core6.12.0-211.53.1.el10_2kernel-64k-debug-core-6.12.0-211.53.1.el10_2.aarch64.rpm
Red Hat Enterprise Linux10.2aarch64kernel-64k-debug-debuginfo6.12.0-211.53.1.el10_2kernel-64k-debug-debuginfo-6.12.0-211.53.1.el10_2.aarch64.rpm
Red Hat Enterprise Linux10.2aarch64kernel-64k-debug-devel6.12.0-211.53.1.el10_2kernel-64k-debug-devel-6.12.0-211.53.1.el10_2.aarch64.rpm
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01 Oct 2026 23:40Current
7.3High risk
Vulners AI Score7.3
CVSS 3.18.8
EPSS0.00165
CWE-1220
Linux kernelvfio/pciDMABUF exportBAR resourcesinformation disclosurelocal attacker
11