netfilter: nfnetlink_log: wait for rcu grace period before freeing pernet state (Linux Linux)
En bref
- Source
- NVD
- EPSS
- EPSS 0.13 % · centile 3 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- Linux
- Statut NVD
- Received
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Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlink_log: wait for rcu grace period before freeing pernet state sashiko reports: "nfnl_log_net_exit() calls nf_log_unset(), which clears the logger pointer without an RCU grace period. Immediately after, ops_free_list() frees the per-net state while concurrent packets might still be executing nf_log_packet() under rcu_read_lock()." Clear the pointer via .pre_exit to make sure rcu readers have completed before pernet storage is free'd. The change in nf_log_syslog.c is only done for consistency: it doesn't use pernet data.
Références
- https://git.kernel.org/stable/c/ba2e246aa294f9acd86194ea87fb6834ed0a37ac
- https://git.kernel.org/stable/c/5570d6c8b320dbcc602617ee08c27ce752fed65a
- https://git.kernel.org/stable/c/3b9aa62d78ce80de47af2db472ff452398755213
- https://git.kernel.org/stable/c/f4461654374576e9d5d0245fd534c46ad8509051
- https://git.kernel.org/stable/c/dc20050b6b12ca58066715d088e1a537535d938d
- https://git.kernel.org/stable/c/33d1469b0124cc0baaea7a2032123b77a81e0940
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) |
Références européennes
- ENISA EUVD · EUVD-2026-86167
- GCVE · GCVE-0-2026-93288
Avis du CERT-FR
- CERTFR-2026-AVI-1431 — Multiples vulnérabilités dans le noyau Linux de Red Hat · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1385 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1375 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1373 — Multiples vulnérabilités dans les produits Red Hat · 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 c83fa19603bdaeef17b815713dbbe3230c8a34ee < ba2e246aa294f9acd86194ea87fb6834ed0a37ac ; affected c83fa19603bdaeef17b815713dbbe3230c8a34ee < 5570d6c8b320dbcc602617ee08c27ce752fed65a ; affected c83fa19603bdaeef17b815713dbbe3230c8a34ee < 3b9aa62d78ce80de47af2db472ff452398755213 ; affected c83fa19603bdaeef17b815713dbbe3230c8a34ee < f4461654374576e9d5d0245fd534c46ad8509051 ; affected c83fa19603bdaeef17b815713dbbe3230c8a34ee < dc20050b6b12ca58066715d088e1a537535d938d ; affected c83fa19603bdaeef17b815713dbbe3230c8a34ee < 33d1469b0124cc0baaea7a2032123b77a81e0940 |
| Linux · Linux | affected 4.12 ; unaffected 0 < 4.12 ; unaffected 5.15.222 ≤ 5.15.* ; unaffected 6.1.189 ≤ 6.1.* ; unaffected 6.6.158 ≤ 6.6.* ; unaffected 6.12.111 ≤ 6.12.* |
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 |