nfp: Check resource mutex allocation

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-68328
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-10 13:20:23 UTC
Updated2026-08-10 13:20:23 UTC
DescriptionIn 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.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected f01a2161577d31b14581e0db3bbbdfa963f145b6 6dbd428119cb1fd1b73cf6968c711f4ea964dc8b git Not specified
CNA Linux Linux affected f01a2161577d31b14581e0db3bbbdfa963f145b6 cfa119aa781c4044dab5b4c1e5864600f53a26bc git Not specified
CNA Linux Linux affected f01a2161577d31b14581e0db3bbbdfa963f145b6 3b1d4fc3b73ea6faf008a0996ce6190c6e43efc3 git Not specified
CNA Linux Linux affected f01a2161577d31b14581e0db3bbbdfa963f145b6 a7dc30b6828c3a30252892827b12b676749f250f git Not specified
CNA Linux Linux affected f01a2161577d31b14581e0db3bbbdfa963f145b6 a61b4db34a753bdf5c9e77a7f3d3dddd41dcfacc git Not specified
CNA Linux Linux affected 4.11 Not specified
CNA Linux Linux unaffected 4.11 semver Not specified
CNA Linux Linux unaffected 6.6.148 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.101 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.42 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.6 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2-rc5 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/6dbd428119cb1fd1b73cf6968c711f4ea964dc8b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/a61b4db34a753bdf5c9e77a7f3d3dddd41dcfacc 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/a7dc30b6828c3a30252892827b12b676749f250f 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/3b1d4fc3b73ea6faf008a0996ce6190c6e43efc3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/cfa119aa781c4044dab5b4c1e5864600f53a26bc 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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