netfilter: nat: use kfree_rcu to release ops (Linux Linux)
En bref
- Source
- NVD
- EPSS
- EPSS 0.18 % · centile 8 ()
- 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: netfilter: nat: use kfree_rcu to release ops Florian Westphal says: "Historically this is not an issue, even for normal base hooks: the data path doesn't use the original nf_hook_ops that are used to register the callbacks. However, in v5.14 I added the ability to dump the active netfilter hooks from userspace. This code will peek back into the nf_hook_ops that are available at the tail of the pointer-array blob used by the datapath. The nat hooks are special, because they are called indirectly from the central nat dispatcher hook. They are currently invisible to the nfnl hook dump subsystem though. But once that changes the nat ops structures have to be deferred too." Update nf_nat_register_fn() to deal with partial exposition of the hooks from error path which can be also an issue for nfnetlink_hook.
Faiblesses (CWE)
- CWE-763 — Libération d'un pointeur ou d'une référence invalide
Références
- https://git.kernel.org/stable/c/bf17f1d3b307196d9282c4b1dd8be0d0e5f8e529
- https://git.kernel.org/stable/c/ede973d62d26d9c550269af05366ab9e30fc92ee
- https://git.kernel.org/stable/c/050f98e56782b14677c5bae50800e60775bbf6bb
- https://git.kernel.org/stable/c/32fdd2e38e7435a368d88f5977a7d6585ebc8b0e
- https://git.kernel.org/stable/c/3c7511f38ab511b791196b13ae48bf4973bf7dfd
- https://git.kernel.org/stable/c/6eda0d771f94267f73f57c94630aa47e90957915
- https://access.redhat.com/security/cve/CVE-2026-53000
- https://bugzilla.redhat.com/show_bug.cgi?id=2492273
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53000.json
- https://access.redhat.com/errata/RHSA-2026:55445
- https://access.redhat.com/errata/RHSA-2026:68100
- https://access.redhat.com/errata/RHSA-2026:67720
- https://access.redhat.com/errata/RHSA-2026:64808
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 7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H | redhat-SADP |
| 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 7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c (Secondary) |
Références européennes
- ENISA EUVD · EUVD-2026-38868
- GCVE · GCVE-0-2026-53000
Avis du CERT-FR
- CERTFR-2026-AVI-1252 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1230 — Multiples vulnérabilités dans le noyau Linux de Red Hat · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1229 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1204 — Multiples vulnérabilités dans le noyau Linux de Red Hat · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1203 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1162 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1091 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1066 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1064 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0954 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0926 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
Configurations affectées (CPE NVD)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.14 < 6.18.33cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.19 < 7.0.10cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*
Produits affectés
| Produit | Versions |
|---|---|
| Linux · Linux | affected e2cf17d3774c323ef6dab6e9f7c0cfc5e742afd9 < bf17f1d3b307196d9282c4b1dd8be0d0e5f8e529 ; affected e2cf17d3774c323ef6dab6e9f7c0cfc5e742afd9 < ede973d62d26d9c550269af05366ab9e30fc92ee ; affected e2cf17d3774c323ef6dab6e9f7c0cfc5e742afd9 < 050f98e56782b14677c5bae50800e60775bbf6bb ; affected e2cf17d3774c323ef6dab6e9f7c0cfc5e742afd9 < 32fdd2e38e7435a368d88f5977a7d6585ebc8b0e ; affected e2cf17d3774c323ef6dab6e9f7c0cfc5e742afd9 < 3c7511f38ab511b791196b13ae48bf4973bf7dfd ; affected e2cf17d3774c323ef6dab6e9f7c0cfc5e742afd9 < 6eda0d771f94267f73f57c94630aa47e90957915 |
| Linux · Linux | affected 5.14 ; unaffected 0 < 5.14 ; unaffected 6.1.191 ≤ 6.1.* ; unaffected 6.6.160 ≤ 6.6.* ; unaffected 6.12.114 ≤ 6.12.* ; unaffected 6.18.33 ≤ 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 |