CVE-2021-47518

kernel: nfc: fix potential NULL pointer deref in nfc_genl_dump_ses_done

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Severity

Low

Red Hat Product Security

4.7

CVSS 3.1

Review impact separately from score.

Published · May 24, 2024

Updated · November 21, 2025

Description

In the Linux kernel, the following vulnerability has been resolved:

nfc: fix potential NULL pointer deref in nfc_genl_dump_ses_done

The done() netlink callback nfc_genl_dump_ses_done() should check if received argument is non-NULL, because its allocation could fail earlier in dumpit() (nfc_genl_dump_ses()).

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 · 4.7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-476 · NULL Pointer Dereference