CVE-2025-21980

sched: address a potential NULL pointer dereference in the GRED scheduler.

MEDIUM 5.5

En bref

Source
NVD
EPSS
EPSS 0.19 % · centile 9 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: sched: address a potential NULL pointer dereference in the GRED scheduler. If kzalloc in gred_init returns a NULL pointer, the code follows the error handling path, invoking gred_destroy. This, in turn, calls gred_offload, where memset could receive a NULL pointer as input, potentially leading to a kernel crash. When table->opt is NULL in gred_init(), gred_change_table_def() is not called yet, so it is not necessary to call ->ndo_setup_tc() in gred_offload().

Faiblesses (CWE)

  • CWE-476 — Déréférencement de pointeur nul

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HCISA-ADP
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected f25c0515c521375154c62c72447869f40218c861 < d02c9acd68950a444acda18d514e2b41f846cb7f ; affected f25c0515c521375154c62c72447869f40218c861 < 0f0a152957d64ce45b4c27c687e7d087e8f45079 ; affected f25c0515c521375154c62c72447869f40218c861 < 68896dd50180b38ea552e49a6a00b685321e5769 ; affected f25c0515c521375154c62c72447869f40218c861 < 5f996b4f80c2cef1f9c77275055e7fcba44c9199 ; affected f25c0515c521375154c62c72447869f40218c861 < 115ef44a98220fddfab37a39a19370497cd718b9
Linux · Linuxaffected 5.16 ; unaffected 0 < 5.16 ; unaffected 6.1.132 ≤ 6.1.* ; unaffected 6.6.84 ≤ 6.6.* ; unaffected 6.12.20 ≤ 6.12.* ; unaffected 6.13.8 ≤ 6.13.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD