CVE-2021-47137
highpriority · track · 0EPSS 0.006 · 49 %ileDEEURUUSEPSS · scored 2026-10-27
In the Linux kernel, the following vulnerability has been resolved: net: lantiq: fix memory corruption in RX ring In a situation where memory allocation or dma mapping fails, an invalid address is programmed into the descriptor. This can lead to memory corruption. If the memory allocation fails, DMA should reuse the previous skb and mapping and drop the packet. This patch also increments rx drop counter.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.8–9.8
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (37)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2024-0699Linux-Kernel: Mehrere Schwachstellen ermöglichen Denial of Service und unspezifische AngriffeDeutsch2024-03-24csaf · cert_bundDE
Ein lokaler Angreifer kann mehrere Schwachstellen im Linux-Kernel ausnutzen, um einen Denial-of-Service-Zustand zu erzeugen und einen nicht spezifizierten Angriff durchzuführen.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (15)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/cve-2021-47137cnnvd
- https://cxsecurity.com/cveshow/CVE-2021-47137/cnnvd
- https://git.kernel.org/stable/c/46dd4abced3cb2c912916f4a5353e0927db0c4a2cnnvd
- https://git.kernel.org/stable/c/5ac72351655f8b033a2935646f53b7465c903418cnnvd
- https://git.kernel.org/stable/c/8bb1077448d43a871ed667520763e3b9f9b7975dcnnvd
- https://git.kernel.org/stable/c/c7718ee96dbc2f9c5fc3b578abdf296dd44b9c20cnnvd
- https://vigilance.fr/vulnerability/Linux-kernel-multiple-vulnerabilities-dated-26-03-2024-43867cnnvd
- https://git.kernel.org/stable/c/46dd4abced3cb2c912916f4a5353e0927db0c4a2enisa_euvd
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