octeontx2-af: Workaround SQM/PSE stalls by disabling sticky (Linux Linux)

CVE-2026-43296
HIGH 7.5

En bref

Source
NVD
EPSS
EPSS 0.39 % · centile 33 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: octeontx2-af: Workaround SQM/PSE stalls by disabling sticky NIX SQ manager sticky mode is known to cause stalls when multiple SQs share an SMQ and transmit concurrently. Additionally, PSE may deadlock on transitions between sticky and non-sticky transmissions. There is also a credit drop issue observed when certain condition clocks are gated. work around these hardware errata by: - Disabling SQM sticky operation: - Clear TM6 (bit 15) - Clear TM11 (bit 14) - Disabling sticky → non-sticky transition path that can deadlock PSE: - Clear TM5 (bit 23) - Preventing credit drops by keeping the control-flow clock enabled: - Set TM9 (bit 21) These changes are applied via NIX_AF_SQM_DBG_CTL_STATUS. With this configuration the SQM/PSE maintain forward progress under load without credit loss, at the cost of disabling sticky optimizations.

Faiblesses (CWE)

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HLinux
CVSS 3.1HIGH 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected 5d9b976d4480dc0dcfa3719b645636d2f0f9f156 < 9a3fd301329474f449e75f86d8a4f6b9c603fd6c ; affected 5d9b976d4480dc0dcfa3719b645636d2f0f9f156 < d0b3c8a80336029d9356f429151eb27922d80a3c ; affected 5d9b976d4480dc0dcfa3719b645636d2f0f9f156 < 36cc5a5e0178d5fb79e04173b8aa623b0108819a ; affected 5d9b976d4480dc0dcfa3719b645636d2f0f9f156 < d9b549b6951ba178ec14339a031cae65f4e43fe1 ; affected 5d9b976d4480dc0dcfa3719b645636d2f0f9f156 < cec2ceb35ce7bc874c43812bb39200d6cf691b87 ; affected 5d9b976d4480dc0dcfa3719b645636d2f0f9f156 < 8052d0587fb14b85539c3a14a226586c0c3d6b4c
Linux · Linuxaffected 5.5 ; unaffected 0 < 5.5 ; unaffected 5.10.252 ≤ 5.10.* ; unaffected 5.15.202 ≤ 5.15.* ; unaffected 6.1.165 ≤ 6.1.* ; unaffected 6.6.128 ≤ 6.6.*

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