# CVE-2026-90316: drm/omap: dsi: Do not copy isr table

> A use-after-free vulnerability in the Linux kernel's OMAP DSI driver allows attackers to potentially execute code or escalate privileges via race conditions during IRQ handling.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 17 Sep 2026
- **Updated:** 19 Oct 2026
- **Also known as:** AZL-102665, BELL-CVE-2026-90316, DEBIAN-CVE-2026-90316, GHSA-gxgq-hfgr-pjxw, UBUNTU-CVE-2026-90316

## What is CVE-2026-90316?

CVE-2026-90316 is a high-severity use after free vulnerability in Linux, published on 17 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

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

drm/omap: dsi: Do not copy isr table

To be able to unregister stuff from isrs, the corresponding table was
copied.  Nobody seems to unregister stuff that way, so it does not help.
But there are stack-allocated objects passed to these isrs giving chances
of UAF of these objects if irqs are unregistered while they are handled,
so better do not copy that table.

## Which versions are affected by CVE-2026-90316?


## How do I fix CVE-2026-90316?

Apply the vendor's patch.

## Is CVE-2026-90316 being exploited?

There is no known exploitation of CVE-2026-90316 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-90316 and fix it if it is affected.

What it is: CVE-2026-90316 is a high-severity use after free vulnerability in Linux, published on 17 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-90316 in the wild and no public exploit code.

Affected product: Linux. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-90316/ (Markdown: https://insights.sbomify.com/CVE-2026-90316/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-90316
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-90316
- OSV: https://osv.dev/vulnerability/CVE-2026-90316

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-90316/
Summaries are generated and may contain mistakes; the official description above is the record.