In the Linux kernel, the following vulnerability has been resolved:

mt76: fix potential DMA mapping leak

With buf uninitialized in mt76_dma_tx_queue_skb_raw, its field skip_unmap
could potentially inherit a non-zero value from stack garbage.
If this happens, it will cause DMA mappings for MCU command frames to not be
unmapped after completion
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Tue, 08 Apr 2025 15:30:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
Weaknesses CWE-401
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel

Thu, 07 Nov 2024 21:15:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 2.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N'}

cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'}


Mon, 04 Nov 2024 13:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2025-05-04T07:03:27.593Z

Reserved: 2024-02-29T22:33:44.295Z

Link: CVE-2021-47064

cve-icon Vulnrichment

Updated: 2024-08-04T05:24:39.820Z

cve-icon NVD

Status : Analyzed

Published: 2024-02-29T23:15:07.947

Modified: 2025-04-08T15:10:02.877

Link: CVE-2021-47064

cve-icon Redhat

Severity : Low

Publid Date: 2024-02-29T00:00:00Z

Links: CVE-2021-47064 - Bugzilla

cve-icon OpenCVE Enrichment

No data.