CVE-2026-68351

wifi: carl9170: bound memcpy length in cmd callback to prevent OOB read

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Source
NVD
EPSS
EPSS 0.22 % · centile 13 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Received

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: carl9170: bound memcpy length in cmd callback to prevent OOB read When the firmware sends a command response with a length mismatch, carl9170_cmd_callback() logs the mismatch and calls carl9170_restart() but then falls through to memcpy(ar->readbuf, buffer + 4, len - 4). Since len comes from the firmware and can exceed ar->readlen, this copies more data than the readbuf was allocated for. Bound the memcpy to min(len - 4, ar->readlen) so that the response is still completed -- avoiding repeated restarts from queued garbage -- while preventing an overread past the response buffer.

Références

Références européennes

Avis du CERT-FR

Produits affectés

ProduitVersions
Linux · Linuxaffected a84fab3cbfdc427e7d366f1cc844f27b2084c26c < 38e240996a6a78c94ab07d461fd66e361d55c3c4 ; affected a84fab3cbfdc427e7d366f1cc844f27b2084c26c < 2d05c321d27624c413c950278d2dc8e0f44a8950 ; affected a84fab3cbfdc427e7d366f1cc844f27b2084c26c < 525036b20ef01d814a7fcd0567d123992e4479fa ; affected a84fab3cbfdc427e7d366f1cc844f27b2084c26c < f74e34e66379e487a09009a4f2d42470051672bd ; affected a84fab3cbfdc427e7d366f1cc844f27b2084c26c < 500c36649f270de05a56591fcc1aaaa36687958e ; affected a84fab3cbfdc427e7d366f1cc844f27b2084c26c < 9aee949c68dc6dccbc54333537b109c53fe2079f
Linux · Linuxaffected 2.6.37 ; unaffected 0 < 2.6.37 ; unaffected 5.10.265 ≤ 5.10.* ; unaffected 5.15.216 ≤ 5.15.* ; unaffected 6.1.183 ≤ 6.1.* ; unaffected 6.6.148 ≤ 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