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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2022-48933 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: fix memory leak during stateful obj update stateful objects can be updated from the control plane. The transaction logic allocates a temporary object for this purpose. The ->init function was called for this object, so plain kfree() leaks resources. We must call ->destroy function of the object. nft_obj_destroy does this, but it also decrements the module refcount, but the update path doesn't increment it. To avoid special-casing the update object release, do module_get for the update case too and release it via nft_obj_destroy().


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/34bb90e407e3288f610558beaae54ecaa32b11c4 Patch 
https://git.kernel.org/stable/c/53026346a94c43f35c32b18804041bc483271d87 Patch 
https://git.kernel.org/stable/c/7e9880e81d3fd6a43c202f205717485290432826 Patch 
https://git.kernel.org/stable/c/dad3bdeef45f81a6e90204bcc85360bb76eccec7 Patch 
https://git.kernel.org/stable/c/e96e204ee6fa46702f6c94c3c69a09e69e0eac52 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-2022-48933
NVD Published Date:
08/22/2024
NVD Last Modified:
08/22/2024
Source:
kernel.org