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CVE-2024-47705 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: block: fix potential invalid pointer dereference in blk_add_partition The blk_add_partition() function initially used a single if-condition (IS_ERR(part)) to check for errors when adding a partition. This was modified to handle the specific case of -ENXIO separately, allowing the function to proceed without logging the error in this case. However, this change unintentionally left a path where md_autodetect_dev() could be called without confirming that part is a valid pointer. This commit separates the error handling logic by splitting the initial if-condition, improving code readability and handling specific error scenarios explicitly. The function now distinguishes the general error case from -ENXIO without altering the existing behavior of md_autodetect_dev() calls.


Metrics

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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/26e197b7f9240a4ac301dd0ad520c0c697c2ea7d Patch 
https://git.kernel.org/stable/c/4bc4272e2506941c3f3d4fb8b0c659ee814dcf6f Patch 
https://git.kernel.org/stable/c/64cf2a39202ca2d9df5ee70eb310b6141ce2b8ed Patch 
https://git.kernel.org/stable/c/652039ba477c9a4ab43740cf2cb0d068d53508c2 Patch 
https://git.kernel.org/stable/c/80f5bfbb80ea1615290dbc24f49d3d8c86db58fe Patch 
https://git.kernel.org/stable/c/afe53ea9b378c376101d99d216f13b6256f75189 Patch 
https://git.kernel.org/stable/c/cc4d21d9492db4e534d3e01253cf885c90dd2a8b Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-476 NULL Pointer Dereference cwe source acceptance level NIST  

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Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2024-47705
NVD Published Date:
10/21/2024
NVD Last Modified:
10/24/2024
Source:
kernel.org