ocfs2: fix slab-use-after-free due to dangling pointer dqi_priv (Linux Linux)
En bref
- Source
- NVD
- EPSS
- EPSS 0.22 % · centile 13 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- Linux
- Statut NVD
- Modified
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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. [akpm@linux-foundation.org: coding-style cleanups]
Faiblesses (CWE)
- CWE-416 — Utilisation après libération
Références
- https://git.kernel.org/stable/c/58f9e20e2a7602e1dd649a1ec4790077c251cb6c
- https://git.kernel.org/stable/c/8ff6f635a08c30559ded0c110c7ce03ba7747d11
- https://git.kernel.org/stable/c/f44e6d70c100614c211703f065cad448050e4a0e
- https://git.kernel.org/stable/c/2d431192486367eee03cc28d0b53b97dafcb8e63
- https://git.kernel.org/stable/c/2e3d203b1adede46bbba049e497765d67865be18
- https://git.kernel.org/stable/c/ba950a02d8d23811aa1120affd3adedcfac6153d
- https://git.kernel.org/stable/c/5f3fd772d152229d94602bca243fbb658068a597
- https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | CISA-ADP |
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary) |
Références européennes
- ENISA EUVD · EUVD-2024-53795
- GCVE · GCVE-0-2024-57892
Avis du CERT-FR
- CERTFR-2025-AVI-0366 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0349 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0308 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0276 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0254 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0184 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0151 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0134 — Multiples vulnérabilités dans le noyau Linux de Debian · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0133 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0088 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Configurations affectées (CPE NVD)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.6 < 6.1.125cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.2 < 6.6.70cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.7 < 6.12.9cpe:2.3:o:linux:linux_kernel:6.13:rc1:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.13:rc2:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.13:rc3:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.13:rc4:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.13:rc5:*:*:*:*:*:*
Produits affectés
| Produit | Versions |
|---|---|
| Linux · Linux | affected 8f9e8f5fcc059a3cba87ce837c88316797ef3645 < 58f9e20e2a7602e1dd649a1ec4790077c251cb6c ; affected 8f9e8f5fcc059a3cba87ce837c88316797ef3645 < 8ff6f635a08c30559ded0c110c7ce03ba7747d11 ; affected 8f9e8f5fcc059a3cba87ce837c88316797ef3645 < f44e6d70c100614c211703f065cad448050e4a0e ; affected 8f9e8f5fcc059a3cba87ce837c88316797ef3645 < 2d431192486367eee03cc28d0b53b97dafcb8e63 ; affected 8f9e8f5fcc059a3cba87ce837c88316797ef3645 < 2e3d203b1adede46bbba049e497765d67865be18 ; affected 8f9e8f5fcc059a3cba87ce837c88316797ef3645 < ba950a02d8d23811aa1120affd3adedcfac6153d |
| Linux · Linux | affected 4.6 ; unaffected 0 < 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.* |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |