---
id: CVE-2026-80655
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  soc: xilinx: Fix race condition in event registration

  The zynqmp_power driver registers handlers for suspend and subsystem
  restart events using register_event()
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  soc: xilinx: Fix race condition in event registration

  The zynqmp_power driver registers handlers for suspend and subsystem
  restart events using register_event(). Howev…
severity: medium
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= fcf544ac64397776a18246eba5a8ca72a47c4405 <
    e124f7b170337563d78a7a6aa152c897d229bc39
  - >-
    Linux >= fcf544ac64397776a18246eba5a8ca72a47c4405 <
    d349aa118ff5e4cab88424ce1b16e08edd70f8bb
  - >-
    Linux >= fcf544ac64397776a18246eba5a8ca72a47c4405 <
    fb445935338405110baca8f541a2df3b4cb8d712
  - Linux 6.11
published: '2026-08-28'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T11:17:51.440'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-80655'
references:
  - url: 'https://git.kernel.org/stable/c/d349aa118ff5e4cab88424ce1b16e08edd70f8bb'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/e124f7b170337563d78a7a6aa152c897d229bc39'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/fb445935338405110baca8f541a2df3b4cb8d712'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80655.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-80655'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2525385'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-80655'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-80655'
  - url: >-
      https://lore.kernel.org/linux-cve-announce/2026082844-CVE-2026-80655-c437@gregkh/T
  - url: 'https://git.kernel.org/stable/c/07ea9081b8fefb99e2f427e0f0602a5e576cb120'
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
epss: 0.00209
epssPercentile: 0.10927
ingestedAt: '2026-10-15T11:00:41.666Z'
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cvssSource: vendor
cwe:
  - CWE-476
---

## Overview

In the Linux kernel, the following vulnerability has been resolved:

soc: xilinx: Fix race condition in event registration

The zynqmp_power driver registers handlers for suspend and subsystem
restart events using register_event(). However, the work structures
(zynqmp_pm_init_suspend_work and zynqmp_pm_init_restart_work) used by
these handlers were allocated and initialized after the registration
call.

This created a race window where, if the firmware triggered an event
immediately after registration but before allocation, the callback
(suspend_event_callback or subsystem_restart_event_callback) would
dereference a NULL pointer in work_pending(), leading to a crash.

Fix this by allocating and initializing the work structures before
registering the events.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Vendor advisories

- **Red Hat VEX** · Moderate · updated 2026-10-17 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80655.json)