NFSv4.1: zero referring call lists before decoding (Linux Linux)
En bref
- Source
- NVD
- EPSS
- EPSS 0.68 % · centile 52 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- Linux
- Statut NVD
- Received
Description
In the Linux kernel, the following vulnerability has been resolved: NFSv4.1: zero referring call lists before decoding decode_cb_sequence_args() allocates csa_rclists with kmalloc_objs(), so each referring_call_list starts uninitialized. decode_rc_list() assigns rcl_refcalls only when rcl_nrefcalls is nonzero. A valid list with zero referring calls therefore leaves the pointer uninitialized, and nfs4_callback_sequence() later passes stale slab contents to kfree(). Allocate csa_rclists with kzalloc_objs() so every rcl_refcalls member is NULL from the beginning, including valid empty referring call lists.
Références
- https://git.kernel.org/stable/c/810f6b3a29ac96fdc16909132b31627dae6824c2
- https://git.kernel.org/stable/c/ed54460caf5b5aa65ec03c9a6032d831f39f19f5
- https://git.kernel.org/stable/c/7510a5b9edec9d9536a4e69f10edfb2592e6cf7f
- https://git.kernel.org/stable/c/f4d23937e1c41995c2f54af26c89b5e48a41c299
- https://git.kernel.org/stable/c/f31f3c042e024aef437cda42f0424ae8d4594b6c
- https://git.kernel.org/stable/c/8fa4804fe62ca4155a2d8fc2789d630376cbf2fc
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | CRITICAL 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | Linux |
| CVSS 3.1 | CRITICAL 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | NVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary) |
Références européennes
- ENISA EUVD · EUVD-2026-81697
- GCVE · GCVE-0-2026-90104
Avis du CERT-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
Produits affectés
| Produit | Versions |
|---|---|
| Linux · Linux | affected 4aece6a19cf7f474f15eb861ba74db4479884ce3 < 810f6b3a29ac96fdc16909132b31627dae6824c2 ; affected 4aece6a19cf7f474f15eb861ba74db4479884ce3 < ed54460caf5b5aa65ec03c9a6032d831f39f19f5 ; affected 4aece6a19cf7f474f15eb861ba74db4479884ce3 < 7510a5b9edec9d9536a4e69f10edfb2592e6cf7f ; affected 4aece6a19cf7f474f15eb861ba74db4479884ce3 < f4d23937e1c41995c2f54af26c89b5e48a41c299 ; affected 4aece6a19cf7f474f15eb861ba74db4479884ce3 < f31f3c042e024aef437cda42f0424ae8d4594b6c ; affected 4aece6a19cf7f474f15eb861ba74db4479884ce3 < 8fa4804fe62ca4155a2d8fc2789d630376cbf2fc |
| Linux · Linux | affected 2.6.31 ; unaffected 0 < 2.6.31 ; unaffected 6.1.191 ≤ 6.1.* ; unaffected 6.6.160 ≤ 6.6.* ; unaffected 6.12.114 ≤ 6.12.* ; unaffected 6.18.57 ≤ 6.18.* |
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 |