# CVE-2024-53126: vdpa: solidrun: Fix UB bug with devres

> A use-after-free bug in the Linux kernel's SolidRun vDPA driver allows attackers to cause undefined behavior, potentially leading to crashes or code execution.

- **Severity:** High 7.1 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/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:** 4 Dec 2024
- **Updated:** 5 Aug 2026
- **Also known as:** AZL-54129, BELL-CVE-2024-53126, DEBIAN-CVE-2024-53126, GHSA-623v-cr64-76w9, UBUNTU-CVE-2024-53126

## What is CVE-2024-53126?

CVE-2024-53126 is a high-severity use after free vulnerability in Linux kernel, published on 4 Dec 2024. 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:

vdpa: solidrun: Fix UB bug with devres

In psnet_open_pf_bar() and snet_open_vf_bar() a string later passed to
pcim_iomap_regions() is placed on the stack. Neither
pcim_iomap_regions() nor the functions it calls copy that string.

Should the string later ever be used, this, consequently, causes
undefined behavior since the stack frame will by then have disappeared.

Fix the bug by allocating the strings on the heap through
devm_kasprintf().

## Which versions are affected by CVE-2024-53126?

It affects 1 product.


Products: Linux kernel.

## How do I fix CVE-2024-53126?

Apply the vendor's patch.

## Is CVE-2024-53126 being exploited?

There is no known exploitation of CVE-2024-53126 in the wild and no public exploit code.

## Other vulnerabilities in Linux kernel

- [CVE-2026-53266](https://insights.sbomify.com/CVE-2026-53266/): Linux Kernel Out-of-Bounds Write (high 8.8, exploited in the wild)
- [CVE-2013-6282](https://insights.sbomify.com/CVE-2013-6282/): Linux Kernel Improper Input Validation (high 8.8, exploited in the wild)
- [CVE-2022-0185](https://insights.sbomify.com/CVE-2022-0185/): Linux Kernel Heap-Based Buffer Overflow (high 8.4, exploited in the wild)
- [CVE-2013-2094](https://insights.sbomify.com/CVE-2013-2094/): Linux Kernel Privilege Escalation (high 8.4, exploited in the wild)
- [CVE-2026-53362](https://insights.sbomify.com/CVE-2026-53362/): Linux Kernel Unspecified (high 7.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-53126 and fix it if it is affected.

What it is: CVE-2024-53126 is a high-severity use after free vulnerability in Linux kernel, published on 4 Dec 2024. 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-2024-53126 in the wild and no public exploit code.

Affected product: Linux kernel. 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-2024-53126/ (Markdown: https://insights.sbomify.com/CVE-2024-53126/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-53126
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-53126
- OSV: https://osv.dev/vulnerability/CVE-2024-53126

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-53126/
Summaries are generated and may contain mistakes; the official description above is the record.