עברית

Vulnerability Intelligence

CVE-2021-47137

Critical 9.8

Published
Last modified
NVD status
Modified

Description

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.

Affected products

linux: linux kernel

References8

Metrics

CVSS 3.1
9.8 CRITICAL Score source: CNA CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS — exploit probability
1% percentile: 49 · as of 5 November 2026
CWE
CWE-770

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