CVE-2021-47443: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: NFC: digital: fix possible memory leak in digital_tg_listen_mdaa() 'params' is allocated in digital_tg_listen_mdaa(), but not free when digital_send_cmd() failed, which will cause memory leak. Fix it by freeing 'params' if digital_send_cmd() return failed.

Affected products

• Linux Linux Kernel: from 3.13, before 4.4.290 (fixed in 4.4.290); from 4.5, before 4.9.288 (fixed in 4.9.288); from 4.10, before 4.14.252 (fixed in 4.14.252); from 4.15, before 4.19.213 (fixed in 4.19.213); from 4.20, before 5.4.155 (fixed in 5.4.155); from 5.5, before 5.10.75 (fixed in 5.10.75); …

Published 2024-05-22. Last modified 2026-06-17.