net_sched: skbprio: Remove overly strict queue assertions (Linux Linux)

CVE-2025-38637
MEDIUM 5.5

En bref

Source
NVD
EPSS
EPSS 0.33 % · centile 26 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: net_sched: skbprio: Remove overly strict queue assertions In the current implementation, skbprio enqueue/dequeue contains an assertion that fails under certain conditions when SKBPRIO is used as a child qdisc under TBF with specific parameters. The failure occurs because TBF sometimes peeks at packets in the child qdisc without actually dequeuing them when tokens are unavailable. This peek operation creates a discrepancy between the parent and child qdisc queue length counters. When TBF later receives a high-priority packet, SKBPRIO's queue length may show a different value than what's reflected in its internal priority queue tracking, triggering the assertion. The fix removes this overly strict assertions in SKBPRIO, they are not necessary at all.

Faiblesses (CWE)

  • CWE-617 — Assertion atteignable

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:HNVD · nvd@nist.gov (Primary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected aea5f654e6b78a0c976f7a25950155932c77a53f < 7abc8318ce0712182bf0783dcfdd9a6a8331160e ; affected aea5f654e6b78a0c976f7a25950155932c77a53f < 1284733bab736e598341f1d3f3b94e2a322864a8 ; affected aea5f654e6b78a0c976f7a25950155932c77a53f < 32ee79682315e6d3c99947b3f38b078a09a66919 ; affected aea5f654e6b78a0c976f7a25950155932c77a53f < 1dcc144c322a8d526b791135604c0663f1af9d85 ; affected aea5f654e6b78a0c976f7a25950155932c77a53f < 864ca690ff135078d374bd565b9872f161c614bc ; affected aea5f654e6b78a0c976f7a25950155932c77a53f < 2f35b7673a3aa3d09b3eb05811669622ebaa98ca
Linux · Linuxaffected 4.19 ; unaffected 0 < 4.19 ; unaffected 5.4.292 ≤ 5.4.* ; unaffected 5.10.236 ≤ 5.10.* ; unaffected 5.15.180 ≤ 5.15.* ; unaffected 6.1.134 ≤ 6.1.*

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