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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2022-49549 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: x86/MCE/AMD: Fix memory leak when threshold_create_bank() fails In mce_threshold_create_device(), if threshold_create_bank() fails, the previously allocated threshold banks array @bp will be leaked because the call to mce_threshold_remove_device() will not free it. This happens because mce_threshold_remove_device() fetches the pointer through the threshold_banks per-CPU variable but bp is written there only after the bank creation is successful, and not before, when threshold_create_bank() fails. Add a helper which unwinds all the bank creation work previously done and pass into it the previously allocated threshold banks array for freeing. [ bp: Massage. ]


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://git.kernel.org/stable/c/396b8e7ab2a99ddac57d3522b3da5e58cb608d37 Patch 
https://git.kernel.org/stable/c/9708f1956eeb70c86943e0bc62fa3b0101b59616 Patch 
https://git.kernel.org/stable/c/b4acb8e7f1594607bc9017ef0aacb40b24a003d6 Patch 
https://git.kernel.org/stable/c/cc0dd4456f9573bf8af9b4d8754433918e809e1e Patch 
https://git.kernel.org/stable/c/e5f28623ceb103e13fc3d7bd45edf9818b227fd0 Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-401 Missing Release of Memory after Effective Lifetime cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2022-49549
NVD Published Date:
02/26/2025
NVD Last Modified:
03/10/2025
Source:
kernel.org