CVE-2021-47064
lowpriority · track · 0EPSS 0.008 · 55 %ileDEEURUUSEPSS · scored 2026-10-27
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 2.3–5.3
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (54)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2024-0527Linux Kernel: Mehrere SchwachstellenDeutsch2024-02-29csaf · cert_bundDE
Ein lokaler Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um einen Denial of Service Zustand zu verursachen und einen nicht näher spezifizierten Angriff durchzuführen.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (12)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/cve-2021-47064cnnvd
- https://cxsecurity.com/cveshow/CVE-2021-47064/cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2021-47064cnnvd
- https://www.kernel.org/Patchcnnvd
- https://git.kernel.org/stable/c/91b9548d413fda488ea853cd1b9f59b572db3a0cenisa_euvd
- https://git.kernel.org/stable/c/9b68ce2856dadc0e1cb6fd21fbeb850da49efd08enisa_euvd
- https://git.kernel.org/stable/c/9fa26701cd1fc4d932d431971efc5746325bdfceenisa_euvd
- https://git.kernel.org/stable/c/b4403cee6400c5f679e9c4a82b91d61aa961eccfenisa_euvd
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