CVE-2026-68328
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.
Affected versions
Linux kernel versions
4.11
and later are affected. Fixed in
5.10.265,
5.15.216,
6.1.183,
6.6.148,
6.12.101,
6.18.42,
7.1.6,
7.2
and their respective stable series.
References
8 totalFrequently asked questions
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What is CVE-2026-68328?
CVE-2026-68328 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 4.11 onward and has been patched in 5.10.265, 5.15.216, 6.1.183 and others. CVE-2026-68328 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-68328?
Yes. CVE-2026-68328 has been patched. Fixed versions include 5.10.265, 5.15.216, 6.1.183 and others. If you are running Linux kernel 4.11 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-68328 actively exploited?
No. CVE-2026-68328 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.