# CVE-2019-19927: Memory corruption in n/a

> A local attacker can trigger a slab-out-of-bounds read in the Linux kernel by mounting a crafted f2fs filesystem image, potentially leading to information disclosure or system crash.

- **Severity:** Medium 6.0 (`CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 31 Dec 2019
- **Updated:** 5 Aug 2024
- **Also known as:** DEBIAN-CVE-2019-19927, GHSA-wwjm-g2hc-3mhm, UBUNTU-CVE-2019-19927

## What is CVE-2019-19927?

CVE-2019-19927 is a medium-severity memory corruption vulnerability in Linux kernel, published on 31 Dec 2019. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

In the Linux kernel 5.0.0-rc7 (as distributed in ubuntu/linux.git on kernel.ubuntu.com), mounting a crafted f2fs filesystem image and performing some operations can lead to slab-out-of-bounds read access in ttm_put_pages in drivers/gpu/drm/ttm/ttm_page_alloc.c. This is related to the vmwgfx or ttm module.

Weakness: CWE-125 (Out-of-bounds Read)

## Which versions are affected by CVE-2019-19927?

It affects 2 products.


Products: Linux kernel, Opensuse Leap.

## How do I fix CVE-2019-19927?

Apply the vendor's patch.

## Is CVE-2019-19927 being exploited?

There is no known exploitation of CVE-2019-19927 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-2019-19927 and fix it if it is affected.

What it is: CVE-2019-19927 is a medium-severity memory corruption vulnerability in Linux kernel, published on 31 Dec 2019. 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-2019-19927 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-2019-19927/ (Markdown: https://insights.sbomify.com/CVE-2019-19927/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-19927
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-19927
- OSV: https://osv.dev/vulnerability/CVE-2019-19927

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-19927/
Summaries are generated and may contain mistakes; the official description above is the record.