HID: core: Harden s32ton() against conversion to 0 bits (Linux Linux)

CVE-2025-38556
HIGH 7.1

En bref

Source
NVD
EPSS
EPSS 0.17 % · centile 7 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: HID: core: Harden s32ton() against conversion to 0 bits Testing by the syzbot fuzzer showed that the HID core gets a shift-out-of-bounds exception when it tries to convert a 32-bit quantity to a 0-bit quantity. Ideally this should never occur, but there are buggy devices and some might have a report field with size set to zero; we shouldn't reject the report or the device just because of that. Instead, harden the s32ton() routine so that it returns a reasonable result instead of crashing when it is called with the number of bits set to 0 -- the same as what snto32() does.

Faiblesses (CWE)

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 7.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:HNVD · nvd@nist.gov (Primary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected dde5845a529ff753364a6d1aea61180946270bfa < 6cdf6c708717c5c6897d0800a1793e83757c7491 ; affected dde5845a529ff753364a6d1aea61180946270bfa < eeeaba737919bdce9885e2a00ac2912f61a3684d ; affected dde5845a529ff753364a6d1aea61180946270bfa < 3c86548a20d7bc2861aa4de044991a327bebad1a ; affected dde5845a529ff753364a6d1aea61180946270bfa < 810189546cb6c8f36443ed091d91f1f5d2fc2ec7 ; affected dde5845a529ff753364a6d1aea61180946270bfa < d3b504146c111548ab60b6ef7aad00bfb1db05a2 ; affected dde5845a529ff753364a6d1aea61180946270bfa < 8b4a94b1510f6a46ec48494b52ee8f67eb4fc836
Linux · Linuxaffected 2.6.20 ; unaffected 0 < 2.6.20 ; unaffected 5.10.248 ≤ 5.10.* ; unaffected 5.15.198 ≤ 5.15.* ; unaffected 6.1.159 ≤ 6.1.* ; unaffected 6.6.119 ≤ 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