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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2024-57892 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix slab-use-after-free due to dangling pointer dqi_priv When mounting ocfs2 and then remounting it as read-only, a slab-use-after-free occurs after the user uses a syscall to quota_getnextquota. Specifically, sb_dqinfo(sb, type)->dqi_priv is the dangling pointer. During the remounting process, the pointer dqi_priv is freed but is never set as null leaving it to be accessed. Additionally, the read-only option for remounting sets the DQUOT_SUSPENDED flag instead of setting the DQUOT_USAGE_ENABLED flags. Moreover, later in the process of getting the next quota, the function ocfs2_get_next_id is called and only checks the quota usage flags and not the quota suspended flags. To fix this, I set dqi_priv to null when it is freed after remounting with read-only and put a check for DQUOT_SUSPENDED in ocfs2_get_next_id. [[email protected]: coding-style cleanups]


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/2d431192486367eee03cc28d0b53b97dafcb8e63 kernel.org Patch 
https://git.kernel.org/stable/c/2e3d203b1adede46bbba049e497765d67865be18 kernel.org Patch 
https://git.kernel.org/stable/c/58f9e20e2a7602e1dd649a1ec4790077c251cb6c kernel.org
https://git.kernel.org/stable/c/5f3fd772d152229d94602bca243fbb658068a597 kernel.org Patch 
https://git.kernel.org/stable/c/8ff6f635a08c30559ded0c110c7ce03ba7747d11 kernel.org
https://git.kernel.org/stable/c/ba950a02d8d23811aa1120affd3adedcfac6153d kernel.org Patch 
https://git.kernel.org/stable/c/f44e6d70c100614c211703f065cad448050e4a0e kernel.org
https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html CVE
https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html CVE

Weakness Enumeration

CWE-ID CWE Name Source
CWE-416 Use After Free cwe source acceptance level NIST   CISA-ADP  

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Change History

7 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2024-57892
NVD Published Date:
01/15/2025
NVD Last Modified:
11/03/2025
Source:
kernel.org