ALSA: usb-mixer: us16x08: validate meter packet indices (Linux Linux)

CVE-2025-68783
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En bref

Source
NVD
EPSS
EPSS 0.21 % · centile 11 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Deferred

Description

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-mixer: us16x08: validate meter packet indices get_meter_levels_from_urb() parses the 64-byte meter packets sent by the device and fills the per-channel arrays meter_level[], comp_level[] and master_level[] in struct snd_us16x08_meter_store. Currently the function derives the channel index directly from the meter packet (MUB2(meter_urb, s) - 1) and uses it to index those arrays without validating the range. If the packet contains a negative or out-of-range channel number, the driver may write past the end of these arrays. Introduce a local channel variable and validate it before updating the arrays. We reject negative indices, limit meter_level[] and comp_level[] to SND_US16X08_MAX_CHANNELS, and guard master_level[] updates with ARRAY_SIZE(master_level).

Références

Références européennes

Avis du CERT-FR

Produits affectés

ProduitVersions
Linux · Linuxaffected d2bb390a2081a36ffe906724d2848d846f2aeb29 < 53461710a95e15ac1f6542450943a492ecf8e550 ; affected d2bb390a2081a36ffe906724d2848d846f2aeb29 < 2168866396bd28ec4f3c8da0fbc7d08b5bd4f053 ; affected d2bb390a2081a36ffe906724d2848d846f2aeb29 < cde47f4ccad6751ac36b7471572ddf38ee91870c ; affected d2bb390a2081a36ffe906724d2848d846f2aeb29 < 2f21a7cbaaa93926f5be15bc095b9c57c35748d9 ; affected d2bb390a2081a36ffe906724d2848d846f2aeb29 < a8ad320efb663be30b794e3dd3e829301c0d0ed3 ; affected d2bb390a2081a36ffe906724d2848d846f2aeb29 < eaa95228b8a56c4880a182c0350d67922b22408f
Linux · Linuxaffected 4.11 ; unaffected 0 < 4.11 ; unaffected 5.10.248 ≤ 5.10.* ; unaffected 5.15.198 ≤ 5.15.* ; unaffected 6.1.160 ≤ 6.1.* ; unaffected 6.6.120 ≤ 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