s390/sclp: Fix SCCB present check (Linux Linux)

CVE-2025-39694
HIGH 7.3

En bref

Source
NVD
EPSS
EPSS 0.17 % · centile 6 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: s390/sclp: Fix SCCB present check Tracing code called by the SCLP interrupt handler contains early exits if the SCCB address associated with an interrupt is NULL. This check is performed after physical to virtual address translation. If the kernel identity mapping does not start at address zero, the resulting virtual address is never zero, so that the NULL checks won't work. Subsequently this may result in incorrect accesses to the first page of the identity mapping. Fix this by introducing a function that handles the NULL case before address translation.

Faiblesses (CWE)

  • CWE-476 — Déréférencement de pointeur nul

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 7.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:HLinux
CVSS 3.1HIGH 7.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)
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 ada1da31ce34248bc97ca8f801f2cf6efa378a81 < aa5073ac1a2a274812f3b04c278992e68ff67cc7 ; affected ada1da31ce34248bc97ca8f801f2cf6efa378a81 < 86c2825791c3836a8f77a954b9c5ebe6fab410c5 ; affected ada1da31ce34248bc97ca8f801f2cf6efa378a81 < 61605c847599fbfdfafe638607841c7d73719081 ; affected ada1da31ce34248bc97ca8f801f2cf6efa378a81 < bf83ae3537359af088d6577812ed93113dfbcb7b ; affected ada1da31ce34248bc97ca8f801f2cf6efa378a81 < 430fa71027b6ac9bb0ce5532b8d0676777d4219a
Linux · Linuxaffected 5.16 ; unaffected 0 < 5.16 ; unaffected 6.1.149 ≤ 6.1.* ; unaffected 6.6.103 ≤ 6.6.* ; unaffected 6.12.44 ≤ 6.12.* ; unaffected 6.16.4 ≤ 6.16.*

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