VYPR
Unrated severityNVD Advisory· Published Mar 25, 2024· Updated May 4, 2025

net: lantiq: fix memory corruption in RX ring

CVE-2021-47137

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.

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Affected products

45

Patches

Vulnerability mechanics

References

4

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