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openSUSE Xen Moderate Mem Leak and TLB Flushing Issues 2026-4088

openSUSE Xen Moderate Mem Leak and TLB Flushing Issues 2026-4088

Linuxsecurity LinuxSecurity Advisories September 9, 2026

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This update for xen fixes the following issues:

* CVE-2026-62437: x86: DMs may cause mem leak by IRQ binding (bsc#1276838).

* CVE-2026-79602: x86: improper handling of HVM emulation return codes

* CVE-2026-79603: unconditionally do TLB flushing ahead of page scrubbing

## Special Instructions and Notes:

* Please reboot the system after installing this update.

## Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like

YaST online_update or "zypper patch".

Alternatively you can run the command listed for your product:

zypper in -t patch SUSE-2026-4088=1

* SUSE Linux Enterprise Micro for Rancher 5.3

zypper in -t patch SUSE-SLE-Micro-5.3-2026-4088=1

* SUSE Linux Enterprise Micro 5.3

zypper in -t patch SUSE-SLE-Micro-5.3-2026-4088=1

* SUSE Linux Enterprise Micro for Rancher 5.4

zypper in -t patch SUSE-SLE-Micro-5.4-2026-4088=1

* SUSE Linux Enterprise Micro 5.4

zypper in -t patch SUSE-SLE-Micro-5.4-2026-4088=1

* openSUSE Leap 15.4 (x86_64)

* xen-libs-32bit-4.16.7_14-150400.4.92.1

* xen-tools-debuginfo-4.16.7_14-150400.4.92.1

* xen-tools-4.16.7_14-150400.4.92.1

* xen-libs-32bit-debuginfo-4.16.7_14-150400.4.92.1

* xen-4.16.7_14-150400.4.92.1

* xen-doc-html-4.16.7_14-150400.4.92.1

* openSUSE Leap 15.4 (i586 x86_64)

* xen-debugsource-4.16.7_14-150400.4.92.1

* xen-tools-domU-4.16.7_14-150400.4.92.1

* xen-tools-domU-debuginfo-4.16.7_14-150400.4.92.1

* xen-libs-debuginfo-4.16.7_14-150400.4.92.1

* xen-devel-4.16.7_14-150400.4.92.1

* xen-libs-4.16.7_14-150400.4.92.1

* openSUSE Leap 15.4 (noarch)

* xen-tools-xendomains-wait-disk-4.16.7_14-150400.4.92.1

* SUSE Linux Enterprise Micro for Rancher 5.3 (x86_64)

* xen-debugsource-4.16.7_14-150400.4.92.1

* xen-libs-debuginfo-4.16.7_14-150400.4.92.1

* xen-libs-4.16.7_14-150400.4.92.1

* SUSE Linux Enterprise Micro 5.3 (x86_64)

* xen-debugsource-4.16.7_14-150400.4.92.1

* xen-libs-debuginfo-4.16.7_14-150400.4.92.1

* xen-libs-4.16.7_14-150400.4.92.1

* SUSE Linux Enterprise Micro for...

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