CVE-2024-57892ocfs2: fix slab-use-after-free due to dangling pointer dqi_priv
- 7.8HighCVSS base score
- 0.22%Exploitation in 30 daysEPSS · top 87% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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]
Timeline
ID reserved
By Linux
- 4 days later
· 4 days later
Published
- 16 months later
· 16 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.22% · top 87% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected 8f9e8f5fcc059a3cba87ce837c88316797ef3645 – < 58f9e20e2a7602e1dd649a1ec4790077c251cb6c
- affected 8f9e8f5fcc059a3cba87ce837c88316797ef3645 – < 8ff6f635a08c30559ded0c110c7ce03ba7747d11
- affected 8f9e8f5fcc059a3cba87ce837c88316797ef3645 – < f44e6d70c100614c211703f065cad448050e4a0e
- affected 8f9e8f5fcc059a3cba87ce837c88316797ef3645 – < 2d431192486367eee03cc28d0b53b97dafcb8e63
- affected 8f9e8f5fcc059a3cba87ce837c88316797ef3645 – < 2e3d203b1adede46bbba049e497765d67865be18
- affected 8f9e8f5fcc059a3cba87ce837c88316797ef3645 – < ba950a02d8d23811aa1120affd3adedcfac6153d
- affected 8f9e8f5fcc059a3cba87ce837c88316797ef3645 – < 5f3fd772d152229d94602bca243fbb658068a597
- affected 4.6
- unaffected < 4.6
- unaffected 5.4.290 – ≤ 5.4.*
- unaffected 5.10.234 – ≤ 5.10.*
- unaffected 5.15.177 – ≤ 5.15.*
- unaffected 6.1.125 – ≤ 6.1.*
- unaffected 6.6.70 – ≤ 6.6.*
- unaffected 6.12.9 – ≤ 6.12.*
- unaffected 6.13 – ≤ *
References
References9
- https://git.kernel.org/stable/c/58f9e20e2a7602e1dd649a1ec4790077c251cb6c (opens in a new tab)
- https://git.kernel.org/stable/c/8ff6f635a08c30559ded0c110c7ce03ba7747d11 (opens in a new tab)
- https://git.kernel.org/stable/c/f44e6d70c100614c211703f065cad448050e4a0e (opens in a new tab)
- https://git.kernel.org/stable/c/2d431192486367eee03cc28d0b53b97dafcb8e63 (opens in a new tab)
- https://git.kernel.org/stable/c/2e3d203b1adede46bbba049e497765d67865be18 (opens in a new tab)
- https://git.kernel.org/stable/c/ba950a02d8d23811aa1120affd3adedcfac6153d (opens in a new tab)
- https://git.kernel.org/stable/c/5f3fd772d152229d94602bca243fbb658068a597 (opens in a new tab)
- https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html (opens in a new tab)
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2024-53795 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2024-57892)Record last updated .