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OpenAdvisories
Unscored CVE-2023-34320 EUVD-2023-38401GHSA-75hw-9685-7hff

arm: Guests can trigger a deadlock on Cortex-A77

Published Dec 8, 2023 · Updated Nov 4, 2025 · Assigned by XEN

Description

Cortex-A77 cores (r0p0 and r1p0) are affected by erratum 1508412
where software, under certain circumstances, could deadlock a core
due to the execution of either a load to device or non-cacheable memory,
and either a store exclusive or register read of the Physical
Address Register (PAR_EL1) in close proximity.

Affected products

VendorProductAffectedFixed
Xen Xen — —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 xen 4.17.2-1 —
Debian 13 xen 4.17.2-1 —
Debian 12 xen 4.17.2+76-ge1f9cb16e2-1~deb12u1 —
ReleasePackageFixed inAdvisory
Ubuntu 26.10 xen No fix yet —
Ubuntu 26.04 LTS xen No fix yet —
Ubuntu 25.10 xen No fix yet —
Ubuntu 24.04 LTS xen No fix yet —
Ubuntu 22.04 LTS xen No fix yet —
Show 3 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu 20.04 LTS xen No fix yet —
Ubuntu 18.04 LTS xen No fix yet —
Ubuntu 16.04 LTS xen No fix yet —
ReleasePackageFixed inAdvisory
Alpine v3.24 xen 4.17.1-r5 —
Alpine v3.23 xen 4.17.1-r5 —
Alpine v3.22 xen 4.17.1-r5 —
Alpine v3.21 xen 4.17.1-r5 —
Alpine v3.20 xen 4.17.1-r5 —
Show 5 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Alpine v3.19 xen 4.17.1-r5 —
Alpine v3.18 xen 4.17.1-r4 —
Alpine v3.17 xen 4.16.4-r3 —
Alpine v3.16 xen 4.16.4-r3 —
Alpine v3.15 xen 4.15.4-r3 —

Advisories 1

References