PT-2026-37603 · Linux · Linux Kernel

Published 2026-05-06 · Updated 2026-05-09 · CVE-2026-43263

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/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 null pointer dereference can occur in the wave5 chips-media component when multiple instances are created and destroyed, leading to frequent interrupts and the removal of decoder structures. This happens because the vpu instance structure, which is shared across all decoder flows, lacks proper lock protection.

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-2026-43263

Affected Products

Linux Kernel

References · 13

• https://nvd.nist.gov/vuln/detail/CVE-2026-43263 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-43263 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-43263 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-43263 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-43263 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2026-43263 · Vendor Advisory
• https://git.kernel.org/stable/c/e66ff2b08e4ee1c4d3b84f24818e5bcc178cc3a4 · Patch
• https://git.kernel.org/stable/c/d12bcf183ec7da4305d848068d15f18044eaf62a · Patch
• https://git.kernel.org/stable/c/ea316b784fe6a61b29131c98cddb24e651b1dcbc · Patch
• https://cve.org/CVERecord?id=CVE-2026-43263 · Security Note
• https://t.me/cveNotify/162790 · Telegram Post
• https://git.kernel.org/linus/e66ff2b08e4ee1c4d3b84f24818e5bcc178cc3a4 · Note
• https://docs.bell-sw.com/security/cves/CVE-2026-43263 · Note