CVE-2022-50824
Unknown Unknown - Not Provided

Memory Leak in Linux Kernel TPM_TIS Due to Missing ACPI Release

Publication date: 2025-12-30

Last updated on: 2025-12-30

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: tpm: tpm_tis: Add the missed acpi_put_table() to fix memory leak In check_acpi_tpm2(), we get the TPM2 table just to make sure the table is there, not used after the init, so the acpi_put_table() should be added to release the ACPI memory.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2025-12-30
Last Modified
2025-12-30
Generated
2026-07-06
AI Q&A
2025-12-30
EPSS Evaluated
2026-07-05
NVD
CVE-2022-50824
EUVD
EUVD-2022-55874

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-UNKNOWN

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This vulnerability is a memory leak in the Linux kernel's TPM (Trusted Platform Module) driver, specifically in the tpm_tis component. The issue occurs because the function check_acpi_tpm2() retrieves the TPM2 ACPI table to verify its presence but fails to release the ACPI memory afterwards by missing a call to acpi_put_table(). This causes a memory leak.

Impact Analysis

The memory leak caused by this vulnerability can lead to inefficient memory usage in the system, potentially degrading system performance or stability over time if the leaked memory accumulates.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2022-50824. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart