FKIE_CVE-2026-68328

Vulnerability from fkie_nvd - Published: 2026-08-10 13:20 - Updated: 2026-08-19 17:20
Severity
Summary
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0dbd85a8cc35c14bd26e686fa5fae8c64a7958ae
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/18737a48acc87e4cbe41d6fea9a3f44eae490e24
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3b1d4fc3b73ea6faf008a0996ce6190c6e43efc3
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/423523f96a681428ce6e214eaf47f0d8242319de
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6dbd428119cb1fd1b73cf6968c711f4ea964dc8b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a61b4db34a753bdf5c9e77a7f3d3dddd41dcfacc
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a7dc30b6828c3a30252892827b12b676749f250f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cfa119aa781c4044dab5b4c1e5864600f53a26bc
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/netronome/nfp/nfpcore/nfp_resource.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "18737a48acc87e4cbe41d6fea9a3f44eae490e24",
              "status": "affected",
              "version": "f01a2161577d31b14581e0db3bbbdfa963f145b6",
              "versionType": "git"
            },
            {
              "lessThan": "423523f96a681428ce6e214eaf47f0d8242319de",
              "status": "affected",
              "version": "f01a2161577d31b14581e0db3bbbdfa963f145b6",
              "versionType": "git"
            },
            {
              "lessThan": "0dbd85a8cc35c14bd26e686fa5fae8c64a7958ae",
              "status": "affected",
              "version": "f01a2161577d31b14581e0db3bbbdfa963f145b6",
              "versionType": "git"
            },
            {
              "lessThan": "6dbd428119cb1fd1b73cf6968c711f4ea964dc8b",
              "status": "affected",
              "version": "f01a2161577d31b14581e0db3bbbdfa963f145b6",
              "versionType": "git"
            },
            {
              "lessThan": "cfa119aa781c4044dab5b4c1e5864600f53a26bc",
              "status": "affected",
              "version": "f01a2161577d31b14581e0db3bbbdfa963f145b6",
              "versionType": "git"
            },
            {
              "lessThan": "3b1d4fc3b73ea6faf008a0996ce6190c6e43efc3",
              "status": "affected",
              "version": "f01a2161577d31b14581e0db3bbbdfa963f145b6",
              "versionType": "git"
            },
            {
              "lessThan": "a7dc30b6828c3a30252892827b12b676749f250f",
              "status": "affected",
              "version": "f01a2161577d31b14581e0db3bbbdfa963f145b6",
              "versionType": "git"
            },
            {
              "lessThan": "a61b4db34a753bdf5c9e77a7f3d3dddd41dcfacc",
              "status": "affected",
              "version": "f01a2161577d31b14581e0db3bbbdfa963f145b6",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/netronome/nfp/nfpcore/nfp_resource.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.11"
            },
            {
              "lessThan": "4.11",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.265",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.216",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.183",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.148",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.101",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.42",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfp: Check resource mutex allocation\n\nnfp_cpp_resource_find() allocates a CPP mutex handle for the matching\nresource-table entry and then reports success.  nfp_resource_try_acquire()\nimmediately passes that handle to nfp_cpp_mutex_trylock().\n\nHowever, nfp_cpp_mutex_alloc() returns NULL on failure.  If that happens\nfor a matching table entry, the resource lookup still returns success and\nthe following trylock dereferences a NULL mutex pointer while opening the\nresource.\n\nnfp_resource_acquire() already treats failure to allocate the table mutex\nas -ENOMEM.  Do the same for the resource mutex and fail the lookup before\npublishing the rest of the resource handle.\n\nThis issue was found by a static analysis checker and confirmed by\nmanual source review."
    }
  ],
  "id": "CVE-2026-68328",
  "lastModified": "2026-08-19T17:20:43.130",
  "metrics": {},
  "published": "2026-08-10T13:20:23.040",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/0dbd85a8cc35c14bd26e686fa5fae8c64a7958ae"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/18737a48acc87e4cbe41d6fea9a3f44eae490e24"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3b1d4fc3b73ea6faf008a0996ce6190c6e43efc3"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/423523f96a681428ce6e214eaf47f0d8242319de"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6dbd428119cb1fd1b73cf6968c711f4ea964dc8b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a61b4db34a753bdf5c9e77a7f3d3dddd41dcfacc"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a7dc30b6828c3a30252892827b12b676749f250f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/cfa119aa781c4044dab5b4c1e5864600f53a26bc"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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