nfsd: add fh_want_write() for early-verified SETATTR in nfsd_proc_setattr() (Linux Linux)
En bref
- Source
- NVD
- EPSS
- EPSS 0.70 % · centile 53 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- Linux
- Statut NVD
- Received
Description
In the Linux kernel, the following vulnerability has been resolved: nfsd: add fh_want_write() for early-verified SETATTR in nfsd_proc_setattr() The BOTH_TIME_SET branch calls fh_verify() early so setattr_prepare() can inspect the dentry. This causes nfsd_setattr() to skip fh_want_write(), so notify_change() runs without a mount write reference. Add the missing fh_want_write() call after the early fh_verify().
Références
- https://git.kernel.org/stable/c/3eec9d791968c177a4a8cda9af5c04f79dae09cb
- https://git.kernel.org/stable/c/9229d824b938f4fb0ea7a5dddade51735e6fe6f9
- https://git.kernel.org/stable/c/2150305134889fb2fc25228d35353bd2f6f29500
- https://git.kernel.org/stable/c/d823bf9285cdf4514873b85ab5a888878dd4e8f4
- https://git.kernel.org/stable/c/15ca3b64a69caa6194bed8f98a20ed90a11c11dd
- https://git.kernel.org/stable/c/533964d420d385e11b08dd4c56c66ef5dcccaf08
- https://git.kernel.org/stable/c/c4a409b86a92815181a8e9395c6bf1696ad19175
- https://git.kernel.org/stable/c/4e475be769aa9f7a2c1ce55a2b8592cfccacddcc
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | CRITICAL 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H | Linux |
| CVSS 3.1 | CRITICAL 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H | NVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary) |
Références européennes
- ENISA EUVD · EUVD-2026-76609
- GCVE · GCVE-0-2026-89697
Avis du CERT-FR
- CERTFR-2026-AVI-1375 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1372 — Multiples vulnérabilités dans les produits SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1335 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1289 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1253 — Multiples vulnérabilités dans le noyau Linux de Debian · cert.ssi.gouv.fr
Produits affectés
| Produit | Versions |
|---|---|
| Linux · Linux | affected cc265089ce1b176dde963c74b53593446ee7f99a < 3eec9d791968c177a4a8cda9af5c04f79dae09cb ; affected cc265089ce1b176dde963c74b53593446ee7f99a < 9229d824b938f4fb0ea7a5dddade51735e6fe6f9 ; affected cc265089ce1b176dde963c74b53593446ee7f99a < 2150305134889fb2fc25228d35353bd2f6f29500 ; affected cc265089ce1b176dde963c74b53593446ee7f99a < d823bf9285cdf4514873b85ab5a888878dd4e8f4 ; affected cc265089ce1b176dde963c74b53593446ee7f99a < 15ca3b64a69caa6194bed8f98a20ed90a11c11dd ; affected cc265089ce1b176dde963c74b53593446ee7f99a < 533964d420d385e11b08dd4c56c66ef5dcccaf08 |
| Linux · Linux | affected 4.2 ; unaffected 0 < 4.2 ; unaffected 5.10.270 ≤ 5.10.* ; unaffected 5.15.221 ≤ 5.15.* ; unaffected 6.1.188 ≤ 6.1.* ; unaffected 6.6.157 ≤ 6.6.* |
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 |