CVE-2025-40126

sparc: fix accurate exception reporting in copy_{from_to}_user for UltraSPARC

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En bref

Source
NVD
EPSS
EPSS 0.23 % · centile 14 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Deferred

Description

In the Linux kernel, the following vulnerability has been resolved: sparc: fix accurate exception reporting in copy_{from_to}_user for UltraSPARC The referenced commit introduced exception handlers on user-space memory references in copy_from_user and copy_to_user. These handlers return from the respective function and calculate the remaining bytes left to copy using the current register contents. This commit fixes a couple of bad calculations. This will fix the return value of copy_from_user and copy_to_user in the faulting case. The behaviour of memcpy stays unchanged.

Références

Références européennes

Avis du CERT-FR

Produits affectés

ProduitVersions
Linux · Linuxaffected cb736fdbb208eb3420f1a2eb2bfc024a6e9dcada < 0bf3dc3a2156f1c5ddaba4b85d09767874634114 ; affected cb736fdbb208eb3420f1a2eb2bfc024a6e9dcada < 41c18baee66134e6ef786eb075c1b6adb22432b0 ; affected cb736fdbb208eb3420f1a2eb2bfc024a6e9dcada < 59424dc0d0e044b2eb007686a4724ddd91d57db5 ; affected cb736fdbb208eb3420f1a2eb2bfc024a6e9dcada < 9b137f277cc3297044aabd950f589e505d30104c ; affected cb736fdbb208eb3420f1a2eb2bfc024a6e9dcada < 674ff598148a28bae0b5372339de56f2abf0b1d1 ; affected cb736fdbb208eb3420f1a2eb2bfc024a6e9dcada < 7de3a75bbc8465d816336c74d50109e73501efab
Linux · Linuxaffected 4.9 ; unaffected 0 < 4.9 ; unaffected 5.4.301 ≤ 5.4.* ; unaffected 5.10.246 ≤ 5.10.* ; unaffected 5.15.195 ≤ 5.15.* ; unaffected 6.1.156 ≤ 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