bnxt_en: Fix NULL pointer dereference (Linux Linux)

CVE-2026-53177
MEDIUM 5.5

En bref

Source
NVD
EPSS
EPSS 0.13 % · centile 2 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: bnxt_en: Fix NULL pointer dereference PCIe errors detected by a Root Port or Downstream Port cause error recovery services to run on all subordinate devices regardless of administrative state. The .error_detected() callback, bnxt_io_error_detected(), disables and synchronizes IRQs via bnxt_disable_int_sync(), which calls bnxt_cp_num_to_irq_num() to map completion rings to IRQs using bp->bnapi. Since bp->bnapi is allocated on NIC open and freed on NIC close, PCIe error recovery on a closed NIC can dereference a NULL pointer. Check if bp->bnapi is NULL before disabling and synchronizing IRQs.

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:HNVD · nvd@nist.gov (Primary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected e5811b8c09df9bc80eabc95339fceded23f16289 < 1449177b87f768353909e930a99b902675119b2b ; affected e5811b8c09df9bc80eabc95339fceded23f16289 < 964b1c3eb71afe58bb61c8b984164447e000ae8a ; affected e5811b8c09df9bc80eabc95339fceded23f16289 < 59c5a3e69c7630a811565937e64be70b08436761 ; affected e5811b8c09df9bc80eabc95339fceded23f16289 < 1a418ad0e5e525d1d117dd1601681f75455af320 ; affected e5811b8c09df9bc80eabc95339fceded23f16289 < 08e57d014ea19f303d5d57a849beb846f37788b7 ; affected e5811b8c09df9bc80eabc95339fceded23f16289 < 3884976f87448e269908ae61bd5d62d54ce9c0c7
Linux · Linuxaffected 4.17 ; unaffected 0 < 4.17 ; unaffected 5.10.260 ≤ 5.10.* ; unaffected 5.15.210 ≤ 5.15.* ; unaffected 6.1.176 ≤ 6.1.* ; unaffected 6.6.143 ≤ 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