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-$5k0.00

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. It is suggested to upgrade the affected component.

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. The best possible mitigation is suggested to be upgrading to the latest version.

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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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

EPSS Score: 🔒
EPSS Percentile: 🔒

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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