CVE-2021-47193

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.

CVSS Metrics

• v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Trends

Current EPSS score: 0.01%• Percentile: 1%

Techniques & Countermeasures

• CWE-401•Missing Release of Memory after Effective Lifetime

  The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.

Affected Systems

• linux•linux

  ≥ 5a141315ed7c2647fa4518570c4941a02588b466, < 0c4398f2ee030d5753f6b0ad83f0ed9077851d9a | ≥ 5a141315ed7c2647fa4518570c4941a02588b466, < 269a4311b15f68d24e816f43f123888f241ed13d | ≥ 5a141315ed7c2647fa4518570c4941a02588b466, < 51e6ed83bb4ade7c360551fa4ae55c4eacea354b | 5.10

• linux•linux_kernel

  < 5.15.5

References (4)

• https://git.kernel.org/stable/c/0c4398f2ee030d5753f6b0ad83f0ed9077851d9a
• 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