CVE-2022-49956: 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: staging: rtl8712: fix use after free bugs _Read/Write_MACREG callbacks are NULL so the read/write_macreg_hdl() functions don't do anything except free the "pcmd" pointer. It results in a use after free. Delete them.

Affected products

• Linux Linux Kernel: from 2.6.37, before 4.9.328 (fixed in 4.9.328); from 4.10, before 4.14.293 (fixed in 4.14.293); from 4.15, before 4.19.258 (fixed in 4.19.258); from 4.20, before 5.4.213 (fixed in 5.4.213); from 5.5, before 5.10.142 (fixed in 5.10.142); from 5.11, before 5.15.66 (fixed in 5.15.66); …

Published 2025-06-18. Last modified 2026-08-04.