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CVE-2021-47193

scsi: pm80xx: Fix memory leak during rmmod

MEDIUM
5.5
CVSS Score
Published: April 10, 2024 at 06:56 PM UTC
Updated: June 17, 2026 at 04:16 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
v < 5.15.55.10 ≤ v < 5.10.2415.10 ≤ v < 5.15.55.10 ≤ v < 5.165.105a141315ed7c2647fa4518570c4941a02588b466
Vendor states this is fixed in 0c4398f2ee030d5753f6b0ad83f0ed9077851d9a (fixed)
Vendor states this is fixed in 269a4311b15f68d24e816f43f123888f241ed13d (fixed)
Vendor states this is fixed in 51e6ed83bb4ade7c360551fa4ae55c4eacea354b (fixed)
Vendor states this is fixed in 5.10 (unaffected)
Vendor states this is fixed in 5.10.241 (unaffected)
Vendor states this is fixed in 5.15.5 (unaffected)
Vendor states this is fixed in 5.16 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (4)

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/0c4398f2ee030d5753f6b0ad83f0ed9077851d9a
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/269a4311b15f68d24e816f43f123888f241ed13d
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/51e6ed83bb4ade7c360551fa4ae55c4eacea354b
Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUM[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-401

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