Name: CVE-2021-47064: Missing Release of Memory after Effective Lifetime
Creator: Rapid7
Published: 2024-02-29T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2021-47064, CVSS 5.3, EPSS 0.00768

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

CVSS Details

CVSS 3.1 Base Score: 5.3
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Debian	—	Upgrade linux	Jul 30, 2024	Feb 29, 2024
Redhat_linux	—	No solution exists	Jul 9, 2025	Feb 29, 2024

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CVSS Details

Covered by Rapid7

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