What’s Vulnerable › Vulnerabilities

CVE-2021-47193: scsi: pm80xx: Fix memory leak during rmmod

• 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: 2024-04-10 · updated 2026-06-17
• Weakness: CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: pm80xx: Fix memory leak during rmmod Driver failed to release all memory allocated. This would lead to memory leak during driver removal. Properly free memory when the module is removed.

Affected products

• Linux kernel: before 5.15.5 — fixed in 5.15.5

How to fix

Upgrade to a fixed version: Linux kernel 5.15.5. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/0c4398f2ee030d5753f6b0ad83f0ed9077851d9a
• https://git.kernel.org/stable/c/269a4311b15f68d24e816f43f123888f241ed13d
• https://git.kernel.org/stable/c/51e6ed83bb4ade7c360551fa4ae55c4eacea354b
• https://git.kernel.org/stable/c/269a4311b15f68d24e816f43f123888f241ed13d
• https://git.kernel.org/stable/c/51e6ed83bb4ade7c360551fa4ae55c4eacea354b
• https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html

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