CVE-2026-68328

Local kernel crash via unchecked mutex allocation

Published Aug 10, 2026 · Updated Aug 10, 2026

NULL-pointer dereference in affected Linux kernel releases from 4.11 allows local users to crash the kernel during NFP resource opening. nfp_cpp_resource_find() reports success after nfp_cpp_mutex_alloc() returns NULL, so nfp_resource_try_acquire() passes that handle to nfp_cpp_mutex_trylock(). Exploitation requires local privileges, supported Netronome or Corigine NFP hardware, and failure of the resource-mutex allocation.

CVSS severity5.5
Medium
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL-pointer dereference in affected Linux kernel releases from 4.11 allows local users to crash the kernel during NFP resource opening. nfp_cpp_resource_find() reports success after nfp_cpp_mutex_alloc() returns NULL, so nfp_resource_try_acquire() passes that handle to nfp_cpp_mutex_trylock(). Exploitation requires local privileges, supported Netronome or Corigine NFP hardware, and failure of the resource-mutex allocation.

The record

CVE
CVE-2026-68328
Published
Aug 10, 2026
Updated
Aug 10, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.11
  2. Affected versionversion=f01a2161577d31b14581e0db3bbbdfa963f145b6 <3b1d4fc3b73ea6faf008a0996ce6190c6e43efc3
  3. Affected versionversion=f01a2161577d31b14581e0db3bbbdfa963f145b6 <6dbd428119cb1fd1b73cf6968c711f4ea964dc8b
  4. Affected versionversion=f01a2161577d31b14581e0db3bbbdfa963f145b6 <a61b4db34a753bdf5c9e77a7f3d3dddd41dcfacc
  5. Affected versionversion=f01a2161577d31b14581e0db3bbbdfa963f145b6 <a7dc30b6828c3a30252892827b12b676749f250f
  6. Affected versionversion=f01a2161577d31b14581e0db3bbbdfa963f145b6 <cfa119aa781c4044dab5b4c1e5864600f53a26bc

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.11; version=f01a2161577d31b14581e0db3bbbdfa963f145b6 <3b1d4fc3b73ea6faf008a0996ce6190c6e43efc3; version=f01a2161577d31b14581e0db3bbbdfa963f145b6 <6dbd428119cb1fd1b73cf6968c711f4ea964dc8b; version=f01a2161577d31b14581e0db3bbbdfa963f145b6 <a61b4db34a753bdf5c9e77a7f3d3dddd41dcfacc; version=f01a2161577d31b14581e0db3bbbdfa963f145b6 <a7dc30b6828c3a30252892827b12b676749f250f; version=f01a2161577d31b14581e0db3bbbdfa963f145b6 <cfa119aa781c4044dab5b4c1e5864600f53a26bc

Published CVSS scores

4.7Amazon LinuxCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5Oracle LinuxCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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