CVE-2026-68328
nfp: Check resource mutex allocation
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.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| Linux Linux |
≥ f01a2161577d31b14581e0db3bbbdfa963f145b6; < 18737a48acc87e4cbe41d6fea9a3f44eae490e24 (affected, git) ≥ f01a2161577d31b14581e0db3bbbdfa963f145b6; < 423523f96a681428ce6e214eaf47f0d8242319de (affected, git) ≥ f01a2161577d31b14581e0db3bbbdfa963f145b6; < 0dbd85a8cc35c14bd26e686fa5fae8c64a7958ae (affected, git) ≥ f01a2161577d31b14581e0db3bbbdfa963f145b6; < 6dbd428119cb1fd1b73cf6968c711f4ea964dc8b (affected, git) ≥ f01a2161577d31b14581e0db3bbbdfa963f145b6; < cfa119aa781c4044dab5b4c1e5864600f53a26bc (affected, git) ≥ f01a2161577d31b14581e0db3bbbdfa963f145b6; < 3b1d4fc3b73ea6faf008a0996ce6190c6e43efc3 (affected, git) ≥ f01a2161577d31b14581e0db3bbbdfa963f145b6; < a7dc30b6828c3a30252892827b12b676749f250f (affected, git) ≥ f01a2161577d31b14581e0db3bbbdfa963f145b6; < a61b4db34a753bdf5c9e77a7f3d3dddd41dcfacc (affected, git) Other versions: unaffected |
CNA: Linux |
| Linux Linux |
4.11 (affected) ≥ 0; < 4.11 (unaffected, semver) ≥ 5.10.265; ≤ 5.10.* (unaffected, semver) ≥ 5.15.216; ≤ 5.15.* (unaffected, semver) ≥ 6.1.183; ≤ 6.1.* (unaffected, semver) ≥ 6.6.148; ≤ 6.6.* (unaffected, semver) ≥ 6.12.101; ≤ 6.12.* (unaffected, semver) ≥ 6.18.42; ≤ 6.18.* (unaffected, semver) ≥ 7.1.6; ≤ 7.1.* (unaffected, semver) ≥ 7.2; ≤ * (unaffected, original_commit_for_fix) Other versions: affected |
CNA: Linux |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
No CVSS assessment reported. An unscored record is not a low-severity determination.
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://git.kernel.org/stable/c/18737a48acc87e4cbe41d6fea9a3f44eae490e24CNA: Linux
- https://git.kernel.org/stable/c/423523f96a681428ce6e214eaf47f0d8242319deCNA: Linux
- https://git.kernel.org/stable/c/0dbd85a8cc35c14bd26e686fa5fae8c64a7958aeCNA: Linux
- https://git.kernel.org/stable/c/6dbd428119cb1fd1b73cf6968c711f4ea964dc8bCNA: Linux
- https://git.kernel.org/stable/c/cfa119aa781c4044dab5b4c1e5864600f53a26bcCNA: Linux
- https://git.kernel.org/stable/c/3b1d4fc3b73ea6faf008a0996ce6190c6e43efc3CNA: Linux
- https://git.kernel.org/stable/c/a7dc30b6828c3a30252892827b12b676749f250fCNA: Linux
- https://git.kernel.org/stable/c/a61b4db34a753bdf5c9e77a7f3d3dddd41dcfaccCNA: Linux
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