What’s Vulnerable › Vulnerabilities

CVE-2024-47666: scsi: pm80xx: Set phy->enable_completion only when we wait for it

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-10-09 · updated 2026-06-17
• Weakness: CWE-416

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 After 300 ms the pm8001_phy_control() function returns and the passed enable_completion stack address is no longer valid.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.

Affected products

• Linux kernel: before 6.6.51; from 6.7 before 6.10.10 — fixed in 6.10.10, 6.6.51

How to fix

Upgrade to a fixed version: Linux kernel 6.10.10, 6.6.51. Check the vendor advisory for mitigations.

References

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

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