Linux Kernel up to 7.2-rc4 nfp nfp_cpp_resource_find null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.53

Summaryinfo

A vulnerability marked as very critical has been reported in Linux Kernel up to 6.6.147/6.12.100/6.18.41/7.1.5/7.2-rc4. This issue affects the function nfp_cpp_resource_find of the component nfp. Performing a manipulation results in null pointer dereference. This vulnerability is cataloged as CVE-2026-68328. The attack must be initiated from a local position. There is no exploit available.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.6.147/6.12.100/6.18.41/7.1.5/7.2-rc4. It has been classified as very critical. This affects the function nfp_cpp_resource_find of the component nfp. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: nfp: Check resource mutex allocation nfp_cpp_resource_find() allocates a CPP mutex handle for the matching resource-table entry and then reports success. nfp_resource_try_acquire() immediately passes that handle to nfp_cpp_mutex_trylock(). However, nfp_cpp_mutex_alloc() returns NULL on failure. If that happens for a matching table entry, the resource lookup still returns success and the following trylock dereferences a NULL mutex pointer while opening the resource. nfp_resource_acquire() already treats failure to allocate the table mutex as -ENOMEM. Do the same for the resource mutex and fail the lookup before publishing the rest of the resource handle. This issue was found by a static analysis checker and confirmed by manual source review.

It is possible to read the advisory at git.kernel.org. This vulnerability is uniquely identified as CVE-2026-68328 since 07/30/2026. The exploitability is told to be easy. Attacking locally is a requirement. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/10/2026).

Upgrading to version 6.6.148, 6.12.101, 6.18.42, 7.1.6 or 7.2-rc5 eliminates this vulnerability. Applying the patch 6dbd428119cb1fd1b73cf6968c711f4ea964dc8b/cfa119aa781c4044dab5b4c1e5864600f53a26bc/3b1d4fc3b73ea6faf008a0996ce6190c6e43efc3/a7dc30b6828c3a30252892827b12b676749f250f/a61b4db34a753bdf5c9e77a7f3d3dddd41dcfacc is able to eliminate this problem.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.4

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.6.148/6.12.101/6.18.42/7.1.6/7.2-rc5
Patch: 6dbd428119cb1fd1b73cf6968c711f4ea964dc8b/cfa119aa781c4044dab5b4c1e5864600f53a26bc/3b1d4fc3b73ea6faf008a0996ce6190c6e43efc3/a7dc30b6828c3a30252892827b12b676749f250f/a61b4db34a753bdf5c9e77a7f3d3dddd41dcfacc

Timelineinfo

07/30/2026 CVE reserved
08/10/2026 +11 days Advisory disclosed
08/10/2026 +0 days VulDB entry created
08/10/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-68328 (🔒)
GCVE (CVE): GCVE-0-2026-68328
GCVE (VulDB): GCVE-100-387699

Entryinfo

Created: 08/10/2026 17:48
Changes: 08/10/2026 17:48 (59)
Complete: 🔍
Cache ID: 216::103

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