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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2024-39482 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: bcache: fix variable length array abuse in btree_iter btree_iter is used in two ways: either allocated on the stack with a fixed size MAX_BSETS, or from a mempool with a dynamic size based on the specific cache set. Previously, the struct had a fixed-length array of size MAX_BSETS which was indexed out-of-bounds for the dynamically-sized iterators, which causes UBSAN to complain. This patch uses the same approach as in bcachefs's sort_iter and splits the iterator into a btree_iter with a flexible array member and a btree_iter_stack which embeds a btree_iter as well as a fixed-length data array.


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/0c31344e22dd8d6b1394c6e4c41d639015bdc671 Mailing List  Patch 
https://git.kernel.org/stable/c/0c31344e22dd8d6b1394c6e4c41d639015bdc671 Mailing List  Patch 
https://git.kernel.org/stable/c/2c3d7b03b658dc8bfa6112b194b67b92a87e081b Mailing List  Patch 
https://git.kernel.org/stable/c/2c3d7b03b658dc8bfa6112b194b67b92a87e081b Mailing List  Patch 
https://git.kernel.org/stable/c/3a861560ccb35f2a4f0a4b8207fa7c2a35fc7f31 Mailing List  Patch 
https://git.kernel.org/stable/c/3a861560ccb35f2a4f0a4b8207fa7c2a35fc7f31 Mailing List  Patch 
https://git.kernel.org/stable/c/5a1922adc5798b7ec894cd3f197afb6f9591b023 Mailing List  Patch 
https://git.kernel.org/stable/c/5a1922adc5798b7ec894cd3f197afb6f9591b023 Mailing List  Patch 
https://git.kernel.org/stable/c/6479b9f41583b013041943c4602e1ad61cec8148 Mailing List  Patch 
https://git.kernel.org/stable/c/6479b9f41583b013041943c4602e1ad61cec8148 Mailing List  Patch 
https://git.kernel.org/stable/c/934e1e4331859183a861f396d7dfaf33cb5afb02 Mailing List  Patch 
https://git.kernel.org/stable/c/934e1e4331859183a861f396d7dfaf33cb5afb02 Mailing List  Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-770 Allocation of Resources Without Limits or Throttling cwe source acceptance level NIST  

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Change History

4 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2024-39482
NVD Published Date:
07/05/2024
NVD Last Modified:
11/21/2024
Source:
kernel.org