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Linux KernelOperating system · Linux

CVE-2026-46150

HIGH · 7.1 CVSS v3.1 Published 2026-05-28
Fix available
A fix is available. Upgrade to 5.10.258 / 5.15.209 or later.
See remediation →
73/100
Remediation priority · Elevated
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: fanotify: fix false positive on permission events fsnotify_get_mark_safe() may return false for a mark on an unrelated group, which results in bypassing the permission check. Fix by skipping over detached marks that are not in the current group.

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

A detailed technical summary for this CVE is being prepared.

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:>= 4.12, < 5.10.258>= 5.11, < 5.15.209>= 5.16, < 6.1.175>= 6.2, < 6.6.140>= 6.7, < 6.12.88>= 6.13, < 6.18.30>= 6.19, < 7.0.7= 7.1

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
None

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

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 5.10.258 / 5.15.209 / 6.1.175 or later
Fixed in 5.10.2585.15.2096.1.175
Vendor patch git.kernel.org →
Recommended fix High confidence

Linux Kernel 5.10.258 (for 5.10.x), 5.15.209 (for 5.15.x), 6.1.175 (for 6.1.x), or 6.6.140 (for 6.6.x) depending on current branch

  1. Identify the currently running kernel version using 'uname -r'
  2. Determine which version branch the current kernel belongs to (e.g., 5.10.x, 5.15.x, 6.1.x, or 6.6.x)
  3. For kernels in the 5.10.x branch (>= 5.10, < 5.10.258): upgrade to kernel 5.10.258 or later
  4. For kernels in the 5.15.x branch (>= 5.11, < 5.15.209): upgrade to kernel 5.15.209 or later
  5. For kernels in the 6.1.x branch (>= 5.16, < 6.1.175): upgrade to kernel 6.1.175 or later
  6. For kernels in the 6.6.x branch (>= 6.2, < 6.6.140): upgrade to kernel 6.6.140 or later
  7. Use the distribution's package manager to install the updated kernel (e.g., 'apt-get update && apt-get upgrade' for Debian/Ubuntu, 'yum update' for RHEL/CentOS, or 'zypper update' for SUSE)
  8. Reboot the system to load the new kernel
Caveat Kernel upgrades may require reboot and could introduce compatibility issues with custom modules or older drivers; test in staging environment first

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 $1,950. 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-2026-46150 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
  • No spam, self-promotion, credentials, or personal data