Skip to main content
VulnerabilityPublished Updated

CVE-2026-43129: Linux kernel · ima: verify the previous kernel's IMA buffer lies in addressable RAM

Affects Linux kernelSource CVE Database V5

0
Compare

Not known to be exploited · fixed in f11d7d088f5ed54b31c6735854c12845eb60eb4a : update Linux kernel when convenient.

Data as of 30 Oct 2026, 12:48 UTC

Severity
Medium

Rated Medium by Threat Radar's AI analysis · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none
Patch
Available – fixed in f11d7d088f5ed54b31c6735854c12845eb60eb4a, 43308106a1762b72f3b20a44b75b2df5cb25b77b, 5366ec7d2f793ce703c403d7fd4c25a3db365b9d +3

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 6 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ b69a2afd5afce9bf6d56e349d6ab592c916e20f2, < f11d7d088f5ed54b31c6735854c12845eb60eb4a
Fixed in
  • f11d7d088f5ed54b31c6735854c12845eb60eb4a
LinuxLinuxAffected
  • ≥ b69a2afd5afce9bf6d56e349d6ab592c916e20f2, < 43308106a1762b72f3b20a44b75b2df5cb25b77b
Fixed in
  • 43308106a1762b72f3b20a44b75b2df5cb25b77b
LinuxLinuxAffected
  • ≥ b69a2afd5afce9bf6d56e349d6ab592c916e20f2, < 5366ec7d2f793ce703c403d7fd4c25a3db365b9d
Fixed in
  • 5366ec7d2f793ce703c403d7fd4c25a3db365b9d
LinuxLinuxAffected
  • ≥ b69a2afd5afce9bf6d56e349d6ab592c916e20f2, < 10d1c75ed4382a8e79874379caa2ead8952734f9
Fixed in
  • 10d1c75ed4382a8e79874379caa2ead8952734f9
LinuxLinuxAffected
  • ≥ b69a2afd5afce9bf6d56e349d6ab592c916e20f2, < 9e1f51c1ad57cc76a0e8b5eb27038f8973fff4fa
Fixed in
  • 9e1f51c1ad57cc76a0e8b5eb27038f8973fff4fa
LinuxLinuxAffected
  • ≥ b69a2afd5afce9bf6d56e349d6ab592c916e20f2, < 5bfa1941ec40d5bed68f3e3f22ea13aff9c6d67a
Fixed in
  • 5bfa1941ec40d5bed68f3e3f22ea13aff9c6d67a

AI-suggested

This vulnerability has been fixed in the Linux kernel version 6.0. Users and administrators should update to the fixed kernel version or later to prevent this issue. No additional mitigation steps are required beyond applying the official patch.

Description

A vulnerability in the Linux kernel's Integrity Measurement Architecture (IMA) was fixed to ensure that the previous kernel's IMA buffer lies within addressable RAM when booting a second-stage kernel via kexec with memory limits. Without this check, the kernel could encounter a page fault accessing an invalid memory address during early restore on x86_64 systems.

References

Community reviews

Loading reviews…