PT-2026-36583 · Linux · Linux Kernel

Published 2026-05-02 · Updated 2026-05-26 · CVE-2026-43058

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/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 An issue exists in the vidtv component where the functions vidtv ts null write into() and vidtv ts pcr write into() accept argument structs by value. This behavior causes Memory Sanitizer (MSAN)—a tool used to detect reads of uninitialized memory—to report uninit-value warnings due to the stack copy of the struct and its associated metadata.

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-2026-43058

ECHO-CD05-4199-7F7A

OPENSUSE-SU-2026:10793-1

Affected Products

Linux Kernel

References · 62

• https://osv.dev/vulnerability/ROOT-OS-UBUNTU-2204-CVE-2026-43058 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-43058 · Vendor Advisory
• https://git.kernel.org/stable/c/1b2820c8a9887981634020db19f1a2425558b88e · Patch
• https://git.kernel.org/stable/c/be57e52e27c7cbfb400a8f255e475cbcff242baa · Patch
• https://git.kernel.org/stable/c/57b01d945ed68cebe486d495dadc4901a96d3aaa · Patch
• https://git.kernel.org/stable/c/6d75a9ec5bdb8cf8382eaf8f8fe831ba7d58a9d4 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-43058 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-43058 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2026:10793-1 · Vendor Advisory
• https://git.kernel.org/stable/c/5f8e73bde67e931468bc2a1860d78d72f0c6ba41 · Patch
• https://cve.org/CVERecord?id=CVE-2026-43058 · Security Note
• https://git.kernel.org/stable/c/e3957eb26a3d570aefc6bb184fa8b8a1e9a4e508 · Patch
• https://osv.dev/vulnerability/BELL-CVE-2026-43058 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-43058 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-43058 · Security Note