CVE-2021-47180
kernel: NFC: nci: fix memory leak in nci_allocate_device
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · March 25, 2024
Updated · November 21, 2025
Description
A flaw was found in the nfc module in the Linux kernel. The nfcmrvl_disconnect function does not free the hci_dev field in the struct nci_dev, causing a memory leak, potentially impacting system performance and resulting in a denial of service.
Statement
The nfc module is not built in the kernel shipped in Red Hat Enterprise Linux, so it is not affected by this vulnerability.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-401 · Missing Release of Memory after Effective Lifetime