Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-001065)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-001065 advisory. Xen and the Linux kernel through 4.5.x do not properly suppress hugetlbfs support in x86 PV guests, which allows local PV guest OS users to cause a denial of service...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-004308)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-004308 advisory. An issue was discovered in the Linux kernel 5.5 through 5.7.9, as used in Xen through 4.13.x for x86 PV guests. An attacker may be granted the I/O port permissions o...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-414391)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-414391 advisory. The Linux kernel before 5.18.13 lacks a certain clear operation for the block starting symbol .bss. This allows Xen PV guest OS users to cause a denial of service or...

OESA-2022-1844 kernel security update

Security Fixes: The Linux kernel before 5.18.13 lacks a certain clear operation for the block starting symbol .bss. This allows Xen PV guest OS users to cause a denial of service or gain privileges.CVE-2022-36123 In v4l2m2mquerybuf of v4l2-mem2mem.c, there is a possible out of bounds write due to...

The Linux kernel before 5.18.13 lacks a certain clear operation for the block starting symbol (.bss). This allows Xen PV guest OS users to cause a denial of service or gain privileges.

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[SECURITY] [DLA 1531-1] linux-4.9 security update

Package : linux-4.9 Version : 4.9.110-3+deb9u5deb8u1 CVE ID : CVE-2018-6554 CVE-2018-6555 CVE-2018-7755 CVE-2018-9363 CVE-2018-9516 CVE-2018-10902 CVE-2018-10938 CVE-2018-13099 CVE-2018-14609 CVE-2018-14617 CVE-2018-14633 CVE-2018-14678 CVE-2018-14734 CVE-2018-15572 CVE-2018-15594 CVE-2018-16276...

x86: Privilege escalation in PV guests

ISSUE DESCRIPTION The PV pagetable code has fast-paths for making updates to pre-existing pagetable entries, to skip expensive re-validation in safe cases e.g. clearing only Access/Dirty bits. The bits considered safe were too broad, and not actually safe. IMPACT A malicous PV guest administrator...