PT-2026-34972 · Linux · Linux Kernel

Published 2026-04-24 · Updated 2026-05-06 · CVE-2026-31620

Positive Technologies (AI Summary)

CVSS v3.1

4.6

Medium

Base vector

AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A NULL pointer dereference occurs in the ALSA usx2y driver for the TASCAM US-144MKII device. A malicious USB device can provide a configuration containing bInterfaceNumber=1 without an interface 0. Because USB configuration descriptors do not require sequential interface numbering, the function usb ifnum to if(dev, 0) returns NULL, which is then dereferenced.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2026-31620

OPENSUSE-SU-2026:10703-1

Affected Products

Linux Kernel

References · 73

• https://git.kernel.org/stable/c/09b145c1f1331c40dc955c0024d636f25417cddb · Patch
• https://security-tracker.debian.org/tracker/CVE-2026-31620 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-31620 · Security Note
• https://git.kernel.org/stable/c/fbaf29ce00e7bce683f3faf4f2b326bd0a9e6602 · Patch
• https://osv.dev/vulnerability/openSUSE-SU-2026:10703-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-31620 · Security Note
• https://git.kernel.org/stable/c/d04dd67ab10dc978c6c843c6bd6a2a66a9444f51 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-31620 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-31620 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-31620 · Vendor Advisory
• https://git.kernel.org/stable/c/48bd344e1040b9f2eb512be73c13f5db83efc191 · Patch
• https://suse.com/security/cve/CVE-2026-31627 · Note
• https://suse.com/security/cve/CVE-2026-31588 · Note
• https://suse.com/security/cve/CVE-2026-31597 · Note
• https://suse.com/security/cve/CVE-2026-31582 · Note