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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2024-41055 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: mm: prevent derefencing NULL ptr in pfn_section_valid() Commit 5ec8e8ea8b77 ("mm/sparsemem: fix race in accessing memory_section->usage") changed pfn_section_valid() to add a READ_ONCE() call around "ms->usage" to fix a race with section_deactivate() where ms->usage can be cleared. The READ_ONCE() call, by itself, is not enough to prevent NULL pointer dereference. We need to check its value before dereferencing it.


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/0100aeb8a12d51950418e685f879cc80cb8e5982 Patch 
https://git.kernel.org/stable/c/797323d1cf92d09b7a017cfec576d9babf99cde7 Patch 
https://git.kernel.org/stable/c/82f0b6f041fad768c28b4ad05a683065412c226e Patch 
https://git.kernel.org/stable/c/941e816185661bf2b44b488565d09444ae316509 Patch 
https://git.kernel.org/stable/c/adccdf702b4ea913ded5ff512239e382d7473b63 Patch 
https://git.kernel.org/stable/c/bc17f2377818dca643a74499c3f5333500c90503 Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-476 NULL Pointer Dereference 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-2024-41055
NVD Published Date:
07/29/2024
NVD Last Modified:
08/22/2024
Source:
kernel.org