CVE-2021-47009

MediumCVSS 5.5/10Last modified Jun 17, 2026

Description

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

KEYS: trusted: Fix memory leak on object td

Two error return paths are neglecting to free allocated object td, causing a memory leak. Fix this by returning via the error return path that securely kfree's td.

Fixes clang scan-build warning: security/keys/trusted-keys/trusted_tpm1.c:496:10: warning: Potential memory leak [unix.Malloc]

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-401

Affected software

VendorProductVersions
LinuxLinux>= 9d83cc1a1e7f494aedee2aa108e801d11525fccf, < 31c9a4b24d86cbb36ff0d7a085725a3b4f0138c8; >= 8cfc8d62942105e5df4a20a15b24da077a6b24ef, < 1c4031014106aff48e1e686e40101c31eab5d44c; >= 5df16caada3fba3b21cb09b85cdedf99507f4ec1, < 3e24fbd37e72e8a67b74991970fecc82d14f57af; >= 5df16caada3fba3b21cb09b85cdedf99507f4ec1, < 83a775d5f9bfda95b1c295f95a3a041a40c7f321; >= 5.10.20, < 5.10.38; >= 5.11.3, < 5.11.22
LinuxLinux5.12

References

Timeline

Published
Feb 28, 2024
Last modified
Jun 17, 2026
NVD status
Analyzed

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CVE-2021-47009: Medium severity, CVSS 5.5 | Vulnix