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kernel: RDMA/umem: Fix double dma_buf_unpin in failure path

🗓️ 01 Jul 2026 09:48:13Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 33 Views

A flaw in Direct Memory Access kernel component allows double unpin of a dma_buf in pinning failure path, risking DoS.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB		CVE-2026-43128
6 May 202611:27
–attackerkb
Tenable Nessus		Amazon Linux 2023 : bpftool6.12, kernel6.12, kernel6.12-devel (ALAS2023-2026-1543)
7 Apr 202600:00
–nessus
Tenable Nessus		Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2026-1544)
7 Apr 202600:00
–nessus
Tenable Nessus		Amazon Linux 2023 : bpftool6.18, kernel6.18, kernel6.18-devel (ALAS2023-2026-1702)
20 May 202600:00
–nessus
Tenable Nessus		AlmaLinux 10 : kernel (ALSA-2026:19569)
8 Jun 202600:00
–nessus
Tenable Nessus		MiracleLinux 9 : kernel-5.14.0-687.10.1.el9_8 (AXSA:2026-1231:47)
10 Jul 202600:00
–nessus
Tenable Nessus		openSUSE 16: cluster-md-kmp-64kb / cluster-md-kmp-azure / cluster-md-kmp-default / etc (openSUSE-SU-2026:21388-1)
24 Jul 202600:00
–nessus
Tenable Nessus		Oracle Linux 9 : kernel (ELSA-2026-19568)
1 Jul 202600:00
–nessus
Tenable Nessus		Oracle Linux 10 : kernel (ELSA-2026-19569)
23 Jul 202600:00
–nessus
Tenable Nessus		Oracle Linux 10 / 9 : Unbreakable Enterprise kernel (ELSA-2026-50372)
6 Jul 202600:00
–nessus
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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux9.6aarch64kernel5.14.0-570.125.1.el9_6kernel-5.14.0-570.125.1.el9_6.aarch64.rpm
Red Hat Enterprise Linux9.6ppc64lekernel5.14.0-570.125.1.el9_6kernel-5.14.0-570.125.1.el9_6.ppc64le.rpm
Red Hat Enterprise Linux9.6s390xkernel5.14.0-570.125.1.el9_6kernel-5.14.0-570.125.1.el9_6.s390x.rpm
Red Hat Enterprise Linux9.6x86_64kernel5.14.0-570.125.1.el9_6kernel-5.14.0-570.125.1.el9_6.x86_64.rpm
Red Hat Enterprise Linux9.6aarch64kernel-64k5.14.0-570.125.1.el9_6kernel-64k-5.14.0-570.125.1.el9_6.aarch64.rpm
Red Hat Enterprise Linux9.6aarch64kernel-64k-core5.14.0-570.125.1.el9_6kernel-64k-core-5.14.0-570.125.1.el9_6.aarch64.rpm
Red Hat Enterprise Linux9.6aarch64kernel-64k-debug5.14.0-570.125.1.el9_6kernel-64k-debug-5.14.0-570.125.1.el9_6.aarch64.rpm
Red Hat Enterprise Linux9.6aarch64kernel-64k-debug-core5.14.0-570.125.1.el9_6kernel-64k-debug-core-5.14.0-570.125.1.el9_6.aarch64.rpm
Red Hat Enterprise Linux9.6aarch64kernel-64k-debug-debuginfo5.14.0-570.125.1.el9_6kernel-64k-debug-debuginfo-5.14.0-570.125.1.el9_6.aarch64.rpm
Red Hat Enterprise Linux9.6aarch64kernel-64k-debug-devel5.14.0-570.125.1.el9_6kernel-64k-debug-devel-5.14.0-570.125.1.el9_6.aarch64.rpm
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23 Jul 2026 09:03Current
7High risk
Vulners AI Score7
CVSS 3.17.8
EPSS0.00139
CWE-911
direct memory accessmemory pinning errordouble unpin flawkernel vulnerability
33