CVE-2021-47137
Critical
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.
SeverityCritical
CVSS9.8
Exploit probability—
Product
Linux Kernel
PublishedMar 25, 2024
First seenMar 25, 2024
Weakness typeCWE-770Allocation of resources without limits
How to fix
Update
- linux linux_kernel5.4.124, 5.10.42, 5.12.9 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 4.20 ≤ v < 5.4.124, 5.5 ≤ v < 5.10.42, 5.11 ≤ v < 5.12.9, 5.13 | 5.4.124, 5.10.42, 5.12.9 |
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