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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2024-40984 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: ACPICA: Revert "ACPICA: avoid Info: mapping multiple BARs. Your kernel is fine." Undo the modifications made in commit d410ee5109a1 ("ACPICA: avoid "Info: mapping multiple BARs. Your kernel is fine.""). The initial purpose of this commit was to stop memory mappings for operation regions from overlapping page boundaries, as it can trigger warnings if different page attributes are present. However, it was found that when this situation arises, mapping continues until the boundary's end, but there is still an attempt to read/write the entire length of the map, leading to a NULL pointer deference. For example, if a four-byte mapping request is made but only one byte is mapped because it hits the current page boundary's end, a four-byte read/write attempt is still made, resulting in a NULL pointer deference. Instead, map the entire length, as the ACPI specification does not mandate that it must be within the same page boundary. It is permissible for it to be mapped across different regions.


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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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/434c6b924e1f4c219aab2d9e05fe79c5364e37d3 CVE, kernel.org Patch 
https://git.kernel.org/stable/c/435ecc978c3d5d0c4e172ec5b956dc1904061d98 CVE, kernel.org Patch 
https://git.kernel.org/stable/c/6eca23100e9030725f69c1babacd58803f29ec8d CVE, kernel.org Patch 
https://git.kernel.org/stable/c/a83e1385b780d41307433ddbc86e3c528db031f0 CVE, kernel.org Patch 
https://git.kernel.org/stable/c/ae465109d82f4fb03c5adbe85f2d6a6a3d59124c CVE, kernel.org Patch 
https://git.kernel.org/stable/c/dc5017c57f5eee80020c73ff8b67ba7f9fd08b1f CVE, kernel.org Patch 
https://git.kernel.org/stable/c/ddc1f5f124479360a1fd43f73be950781d172239 CVE, kernel.org Patch 
https://git.kernel.org/stable/c/e21a4c9129c72fa54dd00f5ebf71219b41d43c04 CVE, kernel.org 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

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2024-40984
NVD Published Date:
07/12/2024
NVD Last Modified:
03/06/2025
Source:
kernel.org