PT-2026-44263 · Linux · Linux Kernel

Published 2026-05-28 · Updated 2026-06-04 · CVE-2026-46140

Positive Technologies (AI Summary)

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

Description An issue exists in the Bluetooth btmtk component where the btmtk usb hci wmt sync() function casts WMT event response SKB data to struct btmtk hci wmt evt (7 bytes) and struct btmtk hci wmt evt funcc (9 bytes) without verifying if the SKB contains sufficient data. A short firmware response can lead to out-of-bounds reads from the SKB tailroom.

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

Related Identifiers

CVE-2026-46140

OPENSUSE-SU-2026:10954-1

Affected Products

Linux Kernel

References · 288

• https://osv.dev/vulnerability/UBUNTU-CVE-2026-46140 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-46140 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-46140 · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2026:10954-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-46140 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-46140 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-46140 · Security Note
• https://osv.dev/vulnerability/BELL-CVE-2026-46140 · Vendor Advisory
• https://suse.com/security/cve/CVE-2026-45839 · Note
• https://suse.com/security/cve/CVE-2026-46227 · Note
• https://suse.com/security/cve/CVE-2026-46066 · Note
• https://suse.com/security/cve/CVE-2026-46136 · Note
• https://suse.com/security/cve/CVE-2026-46111 · Note
• https://suse.com/security/cve/CVE-2026-46006 · Note
• https://suse.com/security/cve/CVE-2026-46028 · Note