Vulnerability CVE-2021-47137
Published: 2024-03-25

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.

 References:
https://git.kernel.org/stable/c/8bb1077448d43a871ed667520763e3b9f9b7975d
https://git.kernel.org/stable/c/5ac72351655f8b033a2935646f53b7465c903418
https://git.kernel.org/stable/c/46dd4abced3cb2c912916f4a5353e0927db0c4a2
https://git.kernel.org/stable/c/c7718ee96dbc2f9c5fc3b578abdf296dd44b9c20
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