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kernel: dm log: fix out-of-bounds write due to region_count overflow

🗓️ 12 Aug 2026 00:46:42Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 8 Views

Integer overflow in Linux dm log truncates 64-bit to 32-bit, causing out-of-bounds write and kernel crash (DoS).

Related
Packages
Refs
ReporterTitlePublishedViews
Family
nessus
Tenable Nessus		Amazon Linux 2023 : bpftool6.18, kernel6.18, kernel6.18-devel (ALAS2023-2026-1866)
22 Jun 202600:00
–nessus
nessus
Tenable Nessus		Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2026-1882)
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		Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.10-2026-123 (ALASKERNEL-5.10-2026-123)
22 Jun 202600:00
–nessus
nessus
Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.15-2026-107 (ALASKERNEL-5.15-2026-107)
22 Jun 202600:00
–nessus
nessus
Tenable Nessus		AlmaLinux 10 : kernel (ALSA-2026:45114)
31 Jul 202600:00
–nessus
nessus
Tenable Nessus		AlmaLinux 8 : kernel (ALSA-2026:45115)
24 Jul 202600:00
–nessus
nessus
Tenable Nessus		AlmaLinux 8 : kernel-rt (ALSA-2026:45116)
24 Jul 202600:00
–nessus
nessus
Tenable Nessus		AlmaLinux 9 : kernel (ALSA-2026:45192)
31 Jul 202600:00
–nessus
nessus
Tenable Nessus		Debian dla-4664 : ata-modules-5.10.0-43-armmp-di - security update
3 Jul 202600:00
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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8.6x86_64bpftool4.18.0-372.206.1.el8_6bpftool-4.18.0-372.206.1.el8_6.x86_64.rpm
Red Hat Enterprise Linux8.6x86_64bpftool-debuginfo4.18.0-372.206.1.el8_6bpftool-debuginfo-4.18.0-372.206.1.el8_6.x86_64.rpm
Red Hat Enterprise Linux8.6x86_64kernel4.18.0-372.206.1.el8_6kernel-4.18.0-372.206.1.el8_6.x86_64.rpm
Red Hat Enterprise Linux8.6noarchkernel-abi-stablelists4.18.0-372.206.1.el8_6kernel-abi-stablelists-4.18.0-372.206.1.el8_6.noarch.rpm
Red Hat Enterprise Linux8.6x86_64kernel-core4.18.0-372.206.1.el8_6kernel-core-4.18.0-372.206.1.el8_6.x86_64.rpm
Red Hat Enterprise Linux8.6x86_64kernel-debug4.18.0-372.206.1.el8_6kernel-debug-4.18.0-372.206.1.el8_6.x86_64.rpm
Red Hat Enterprise Linux8.6x86_64kernel-debug-core4.18.0-372.206.1.el8_6kernel-debug-core-4.18.0-372.206.1.el8_6.x86_64.rpm
Red Hat Enterprise Linux8.6x86_64kernel-debug-debuginfo4.18.0-372.206.1.el8_6kernel-debug-debuginfo-4.18.0-372.206.1.el8_6.x86_64.rpm
Red Hat Enterprise Linux8.6x86_64kernel-debug-devel4.18.0-372.206.1.el8_6kernel-debug-devel-4.18.0-372.206.1.el8_6.x86_64.rpm
Red Hat Enterprise Linux8.6x86_64kernel-debug-modules4.18.0-372.206.1.el8_6kernel-debug-modules-4.18.0-372.206.1.el8_6.x86_64.rpm
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26 Aug 2026 22:04Current
5.3Medium risk
Vulners AI Score5.3
CVSS 3.16.3 - 7.8
EPSS0.0014
CWE-190
Linux Kerneldevice-mapperinteger overflowout-of-bounds writeDenial of Service
8