CVE-2024-57892
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2024-57892
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-57892.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2024-57892
- Downstream
- Related
- Published
- 2025-01-15T13:05:44.635Z
- Modified
- 2025-11-28T02:34:55.710622Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- ocfs2: fix slab-use-after-free due to dangling pointer dqi_priv
- Details
-
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 quotagetnextquota. Specifically, sbdqinfo(sb, type)->dqi_priv is the dangling pointer.
During the remounting process, the pointer dqipriv is freed but is never set as null leaving it to be accessed. Additionally, the read-only option for remounting sets the DQUOTSUSPENDED flag instead of setting the DQUOTUSAGEENABLED flags. Moreover, later in the process of getting the next quota, the function ocfs2getnext_id is called and only checks the quota usage flags and not the quota suspended flags.
To fix this, I set dqipriv to null when it is freed after remounting with read-only and put a check for DQUOTSUSPENDED in ocfs2getnext_id.
[akpm@linux-foundation.org: coding-style cleanups]
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/57xxx/CVE-2024-57892.json" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/2d431192486367eee03cc28d0b53b97dafcb8e63
- https://git.kernel.org/stable/c/2e3d203b1adede46bbba049e497765d67865be18
- https://git.kernel.org/stable/c/58f9e20e2a7602e1dd649a1ec4790077c251cb6c
- https://git.kernel.org/stable/c/5f3fd772d152229d94602bca243fbb658068a597
- https://git.kernel.org/stable/c/8ff6f635a08c30559ded0c110c7ce03ba7747d11
- https://git.kernel.org/stable/c/ba950a02d8d23811aa1120affd3adedcfac6153d
- https://git.kernel.org/stable/c/f44e6d70c100614c211703f065cad448050e4a0e
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/57xxx/CVE-2024-57892.json
- https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
- https://nvd.nist.gov/vuln/detail/CVE-2024-57892
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced8f9e8f5fcc059a3cba87ce837c88316797ef3645Fixed58f9e20e2a7602e1dd649a1ec4790077c251cb6cFixed8ff6f635a08c30559ded0c110c7ce03ba7747d11Fixedf44e6d70c100614c211703f065cad448050e4a0eFixed2d431192486367eee03cc28d0b53b97dafcb8e63Fixed2e3d203b1adede46bbba049e497765d67865be18Fixedba950a02d8d23811aa1120affd3adedcfac6153dFixed5f3fd772d152229d94602bca243fbb658068a597
Linux / Kernel
Package
- Name
- Kernel
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced4.6.0Fixed5.4.290
- Type
- ECOSYSTEM
- Events
-
Introduced5.5.0Fixed5.10.234
- Type
- ECOSYSTEM
- Events
-
Introduced5.11.0Fixed5.15.177
- Type
- ECOSYSTEM
- Events
-
Introduced5.16.0Fixed6.1.125
- Type
- ECOSYSTEM
- Events
-
Introduced6.2.0Fixed6.6.70
- Type
- ECOSYSTEM
- Events
-
Introduced6.7.0Fixed6.12.9