block, bfq: fix uaf for bfqq in bfq_exit_icq_bfqq (Linux Linux)
En bref
- Source
- NVD
- EPSS
- EPSS 0.17 % · centile 6 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- Linux
- Statut NVD
- Modified
Rechercher sur…
Description
In the Linux kernel, the following vulnerability has been resolved: block, bfq: fix uaf for bfqq in bfq_exit_icq_bfqq Commit 64dc8c732f5c ("block, bfq: fix possible uaf for 'bfqq->bic'") will access 'bic->bfqq' in bic_set_bfqq(), however, bfq_exit_icq_bfqq() can free bfqq first, and then call bic_set_bfqq(), which will cause uaf. Fix the problem by moving bfq_exit_bfqq() behind bic_set_bfqq().
Faiblesses (CWE)
- CWE-416 — Utilisation après libération
Références
- https://git.kernel.org/stable/c/1425f1bb5df5239021fd09ebc2a5e8070e705d36
- https://git.kernel.org/stable/c/7949b0df3dd9f4817ed4a4e989fa9ee81df6205f
- https://git.kernel.org/stable/c/cfe5b38c37720313eff0dec5517442c7ab3c9a20
- https://git.kernel.org/stable/c/1ed959fef5b1c6f1a7a3fbea543698c30ebd6678
- https://git.kernel.org/stable/c/246cf66e300b76099b5dbd3fdd39e9a5dbc53f02
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 | Linux |
| 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 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary) |
| 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) |
Références européennes
- ENISA EUVD · EUVD-2022-55526
- GCVE · GCVE-0-2022-50329
Avis du CERT-FR
- CERTFR-2026-AVI-0195 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0170 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0921 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0895 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Configurations affectées (CPE NVD)
cpe:2.3:o:linux:linux_kernel:5.15.86:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.0.16:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.1.2:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.2:rc1:*:*:*:*:*:*
Produits affectés
| Produit | Versions |
|---|---|
| Linux · Linux | affected 5533742c7cb1bc9b1f0bf401cc397d44a3a9e07a < 1425f1bb5df5239021fd09ebc2a5e8070e705d36 ; affected 094f3d9314d67691cb21ba091c1b528f6e3c4893 < 7949b0df3dd9f4817ed4a4e989fa9ee81df6205f ; affected b22fd72bfebda3956efc4431b60ddfc0a51e03e0 < cfe5b38c37720313eff0dec5517442c7ab3c9a20 ; affected 761564d93c8265f65543acf0a576b32d66bfa26a < 1ed959fef5b1c6f1a7a3fbea543698c30ebd6678 ; affected 64dc8c732f5c2b406cc752e6aaa1bd5471159cab < 246cf66e300b76099b5dbd3fdd39e9a5dbc53f02 |
| Linux · Linux | affected 5.15.86 < 5.15.87 ; affected 6.0.16 < 6.0.17 ; affected 6.1.2 < 6.1.3 |
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 |