CVE-2021-47311: Linux Kernel

High severity, CVSS 7.8. EPSS: 0.3% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: net: qcom/emac: fix UAF in emac_remove adpt is netdev private data and it cannot be used after free_netdev() call. Using adpt after free_netdev() can cause UAF bug. Fix it by moving free_netdev() at the end of the function.

Affected products

• Linux Linux Kernel: from 4.9, before 4.9.277 (fixed in 4.9.277); from 4.10, before 4.14.241 (fixed in 4.14.241); from 4.15, before 4.19.199 (fixed in 4.19.199); from 4.20, before 5.4.135 (fixed in 5.4.135); from 5.5, before 5.10.53 (fixed in 5.10.53); from 5.11, before 5.13.5 (fixed in 5.13.5); …

Published 2024-05-21. Last modified 2026-06-17.