CVE-2025-21715: Linux Kernel

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: net: davicom: fix UAF in dm9000_drv_remove dm is netdev private data and it cannot be used after free_netdev() call. Using dm after free_netdev() can cause UAF bug. Fix it by moving free_netdev() at the end of the function. This is similar to the issue fixed in commit ad297cd2db89 ("net: qcom/emac: fix UAF in emac_remove"). This bug is detected by our static analysis tool.

Affected products

• Linux Linux Kernel: from 4.4.262, before 4.5 (fixed in 4.5); from 4.9.262, before 4.10 (fixed in 4.10); from 4.14.226, before 4.15 (fixed in 4.15); from 4.19.181, before 4.20 (fixed in 4.20); from 5.4.106, before 5.4.291 (fixed in 5.4.291); from 5.10.24, before 5.10.235 (fixed in 5.10.235); …

Published 2025-02-27. Last modified 2026-06-17.