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

CVE-2024-47666
5.5MEDIUM

Key Information

Vendor
Linux
Status
Linux
Vendor
CVE Published:
9 October 2024

Badges

👾 Exploit Exists📰 News Worthy

Summary

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 After 300 ms the pm8001_phy_control() function returns and the passed enable_completion stack address is no longer valid.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

Linux < 7b1d779647af

Linux < 1da177e4c3f4

Linux < 1da177e4c3f4

News Articles

favicon imageprophaze.com

CVE-2024-47666 : LINUX KERNEL UP TO 6.6.50/6.10.9 PM80XX PM8001_PHY_CONTROL STACK-BASED OVERFLOW - Cloud WAF

CVE-2024-47666 : 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...

1 month ago

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • 👾

    Exploit exists.

  • First article discovered by prophaze.com

  • Vulnerability published.

Collectors

NVD DatabaseMitre Database1 News Article(s)
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