CVE-2025-40172

accel/qaic: Treat remaining == 0 as error in find_and_map_user_pages()

HIGH 7.8

En bref

Source
NVD
EPSS
EPSS 0.15 % · centile 4 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Deferred

Description

In the Linux kernel, the following vulnerability has been resolved: accel/qaic: Treat remaining == 0 as error in find_and_map_user_pages() Currently, if find_and_map_user_pages() takes a DMA xfer request from the user with a length field set to 0, or in a rare case, the host receives QAIC_TRANS_DMA_XFER_CONT from the device where resources->xferred_dma_size is equal to the requested transaction size, the function will return 0 before allocating an sgt or setting the fields of the dma_xfer struct. In that case, encode_addr_size_pairs() will try to access the sgt which will lead to a general protection fault. Return an EINVAL in case the user provides a zero-sized ALP, or the device requests continuation after all of the bytes have been transferred.

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)

Références européennes

Avis du CERT-FR

Produits affectés

ProduitVersions
Linux · Linuxaffected 96d3c1cadedb6ae2e8965e19cd12caa244afbd9c < 48b1d42286bfef7628b1d6c8c28d4e456c90f725 ; affected 96d3c1cadedb6ae2e8965e19cd12caa244afbd9c < 551f1dfbcb7f3e6ed07f9d6c8c1c64337fcd0ede ; affected 96d3c1cadedb6ae2e8965e19cd12caa244afbd9c < 1ab9733d14cc9987cc5dcd1f0ad1f416e302e2e6 ; affected 96d3c1cadedb6ae2e8965e19cd12caa244afbd9c < 11f08c30a3e4157305ba692f1d44cca5fc9a8fca ; affected d410a96e5cb8c1ec7049c83f2edcd8bbfaf5d9b3 ; affected 6.4.12 < 6.5
Linux · Linuxaffected 6.5 ; unaffected 0 < 6.5 ; unaffected 6.6.114 ≤ 6.6.* ; unaffected 6.12.55 ≤ 6.12.* ; unaffected 6.17.5 ≤ 6.17.* ; unaffected 6.18 ≤ *

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