CVE-2021-47529

iwlwifi: Fix memory leaks in error handling path

MEDIUM
5.5
CVSS Score
Published: May 24, 2024 at 03:09 PM UTC
Updated: June 17, 2026 at 04:17 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: iwlwifi: Fix memory leaks in error handling path Should an error occur (invalid TLV len or memory allocation failure), the memory already allocated in 'reduce_power_data' should be freed before returning, otherwise it is leaking.

Affected

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

5.14 ≤ v < 5.15.75.14 ≤ v < 5.165.149dad325f9d57508b154f0bebbc341a8528e5729c
Vendor states this is fixed in 4768935c25403ba96e7a745645df24a51a774b7e (fixed)
Vendor states this is fixed in a571bc28326d9f3e13f5f2d9cda2883e0631b0ce (fixed)
Vendor states this is fixed in 5.14 (unaffected)
Vendor states this is fixed in 5.15.7 (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:

References (2)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/4768935c25403ba96e7a745645df24a51a774b7e
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/a571bc28326d9f3e13f5f2d9cda2883e0631b0ce

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

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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