PT-2026-37411 · Linux · Linux Kernel

Yiming Qian · Published 2026-05-06 · Updated 2026-05-07 · CVE-2026-43101

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/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 potential NULL pointer dereference exists in the Linux kernel within the IPv6 IOAM (In-situ Operations, Administration, and Maintenance) component. The issue occurs in the ioam6 fill trace data() function because the return value of in6 dev get() is not properly checked for NULL. This can lead to system instability or crashes.

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

Related Identifiers

CVE-2026-43101

Affected Products

Linux Kernel

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2026-43101 · Security Note
• https://twitter.com/windowsforum/status/2052323442163106225 · Twitter Post
• https://git.kernel.org/stable/c/3719c234fa94c37c955b1ecd3742ef280ec135e6 · Note
• https://git.kernel.org/stable/c/4e65a8b8daa18d63255ec58964dd192c7fdd9f8b · Note
• https://git.kernel.org/stable/c/4198aab6f000b4febb18ea820fea20634dd789c7 · Note