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CVE-2021-47022

mt76: mt7615: fix memleak when mt7615_unregister_device()

MEDIUM
5.5
CVSS Score
Published: February 28, 2024 at 08:13 AM 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: mt76: mt7615: fix memleak when mt7615_unregister_device() mt7615_tx_token_put() should get call before mt76_free_pending_txwi().

Affected

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

Linux Kernel· Linux
95%
5.10.21 ≤ v < 5.10.375.11.4 ≤ v < 5.11.215.12 ≤ v < 5.12.45.12 ≤ v < 5.131aca6c30d4b655a4fd29c4ad66985b60def88eed5.10.215.11.45.12a6275e934605646ef81b02d8d1164f21343149c9aec5719681405af21102c2407b01f83ed19e9833
Vendor states this is fixed in 107bcbb219ac84d885ac63b25246f8d33212bc47 (fixed)
Vendor states this is fixed in 4fa28c807da54c1d720b3cc12e48eb9bea1e2c8f (fixed)
Vendor states this is fixed in 6c5b2b0c6e5a6ce2d8f9f85b8b72bfad60eaa506 (fixed)
Vendor states this is fixed in 8ab31da7b89f71c4c2defcca989fab7b42f87d71 (fixed)
Vendor states this is fixed in 5.10.37 (unaffected)
Vendor states this is fixed in 5.11.21 (unaffected)
Vendor states this is fixed in 5.12 (unaffected)
Vendor states this is fixed in 5.12.4 (unaffected)
Vendor states this is fixed in 5.13 (unaffected)

References (4)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/107bcbb219ac84d885ac63b25246f8d33212bc47
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/4fa28c807da54c1d720b3cc12e48eb9bea1e2c8f
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/6c5b2b0c6e5a6ce2d8f9f85b8b72bfad60eaa506
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/8ab31da7b89f71c4c2defcca989fab7b42f87d71

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

StatusANALYZED
CWE
CWE-401

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