PT-2026-38973 · Linux · Linux Kernel

Published 2026-05-08 · Updated 2026-05-08 · CVE-2026-43322

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

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

Description A use-after-free (UAF) issue exists in the Bluetooth component of the Linux kernel. The problem occurs in the le read features complete() function when hci conn is freed after hci le read remote features sync but before le read features complete is executed, as hci conn del and hci cmd sync dequeue fail to prevent this sequence.

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

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

CVE-2026-43322

Affected Products

Linux Kernel

References · 12

• https://git.kernel.org/stable/c/260dc2be643b4a35b27008490c533613e3e53867 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-43322 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2026-43322 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-43322 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-43322 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-43322 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-43322 · Security Note
• https://git.kernel.org/stable/c/035c25007c9e698bef3826070ee34bb6d778020c · Patch
• https://git.kernel.org/linus/035c25007c9e698bef3826070ee34bb6d778020c · Note
• https://twitter.com/vuldb/status/2052756966678904856 · Twitter Post
• https://twitter.com/infoflowcloud/status/2052812483191087462 · Twitter Post
• https://twitter.com/CVEnew/status/2052811060072042951 · Twitter Post