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Linux KernelOperating system · Linux

CVE-2026-43207

HIGH · 7.8 CVSS v3.1 Published 2026-05-06
Fix available
A fix is available. Upgrade to 5.10.252 / 5.15.202 or later.
See remediation →
80/100
Remediation priority · High
Zero-click Patch available

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
In the Linux kernel, the following vulnerability has been resolved: media: mtk-mdp: Fix error handling in probe function Add mtk_mdp_unregister_m2m_device() on the error handling path to prevent resource leak. Add check for the return value of vpu_get_plat_device() to prevent null pointer dereference. And vpu_get_plat_device() increases the reference count of the returned platform device. Add platform_device_put() to prevent reference leak.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis
How this class of weakness works · CWE-476

The code follows a pointer that is null, crashing the process. An attacker who can reliably trigger it turns the crash into a denial of service. The fix is checking for null before use and handling the failure path gracefully.

General guidance for the null pointer dereference class — the official description and references above are authoritative for this specific CVE. Want a bespoke review and a reviewed fix? Ask our team →

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Linux KernelOperating system
Affected:>= 4.10, < 5.10.252>= 5.11, < 5.15.202>= 5.16, < 6.1.165>= 6.2, < 6.6.128>= 6.7, < 6.12.75>= 6.13, < 6.18.16>= 6.19, < 6.19.6

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 5.10.252 / 5.15.202 / 6.1.165 or later
Fixed in 5.10.2525.15.2026.1.165
Vendor patch git.kernel.org →
Recommended fix High confidence

6.6.128 (or 6.1.165, 5.15.202, or 5.10.252 depending on your current branch)

  1. 1. Identify the currently running Linux kernel version using 'uname -r'
  2. 2. Determine which affected version range your kernel falls into (>= 4.10 and < 5.10.252, >= 5.11 and < 5.15.202, >= 5.16 and < 6.1.165, or >= 6.2 and < 6.6.128)
  3. 3. Upgrade the Linux kernel to the first fixed version in your version branch: 5.10.252, 5.15.202, 6.1.165, or 6.6.128 respectively
  4. 4. For Ubuntu/Debian: run 'sudo apt update && sudo apt upgrade' or install specific kernel package
  5. 5. For RHEL/CentOS: run 'sudo yum update kernel'
  6. 6. For Alpine: update the linux-lts or linux-stable package
  7. 7. Reboot the system to load the new kernel
  8. 8. Verify the kernel version is now at or above the fixed version using 'uname -r'
Caveat Kernel upgrades may require rebooting services and could introduce compatibility issues with out-of-tree kernel modules or proprietary drivers

Generated from the published advisory — verify against the referenced sources before acting.

We can perform the upgrade in your staging environment and verify nothing breaks — typical engagement from $3,200. Get the upgrade done

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-43207 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
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