CVE-2026-68328

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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."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/netronome/nfp/nfpcore/nfp_resource.c"], "versions": [{"version": "f01a2161577d31b14581e0db3bbbdfa963f145b6", "lessThan": "18737a48acc87e4cbe41d6fea9a3f44eae490e24", "status": "affected", "versionType": "git"}, {"version": "f01a2161577d31b14581e0db3bbbdfa963f145b6", "lessThan": "423523f96a681428ce6e214eaf47f0d8242319de", "status": "affected", "versionType": "git"}, {"version": "f01a2161577d31b14581e0db3bbbdfa963f145b6", "lessThan": "0dbd85a8cc35c14bd26e686fa5fae8c64a7958ae", "status": "affected", "versionType": "git"}, {"version": "f01a2161577d31b14581e0db3bbbdfa963f145b6", "lessThan": 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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."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.265", "versionStartIncluding": "4.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.216", "versionStartIncluding": "4.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.183", "versionStartIncluding": "4.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.148", "versionStartIncluding": "4.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.12.101", "versionStartIncluding": "4.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.18.42", "versionStartIncluding": "4.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.1.6", "versionStartIncluding": "4.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.2", "versionStartIncluding": "4.11"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-19T16:33:25.716Z"}}}, "cveMetadata": {"cveId": "CVE-2026-68328", "state": "PUBLISHED", "dateUpdated": "2026-11-06T16:55:13.329Z", "dateReserved": "2026-07-30T09:28:09.382Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2026-08-10T12:03:04.560Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

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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": "2026-11-06T17:19:29.243", "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-68328", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-11-06T16:47:23.980421Z", "version": "2.0.3"}}]}, "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"}

{"bugzilla": {"description": "kernel: Linux kernel: nfp driver NULL pointer dereference leads to denial of service", "id": "2513358", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2513358"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.9", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-476", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnfp: Check resource mutex allocation\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().\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.\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.\nThis issue was found by a static analysis checker and confirmed by\nmanual source review.", "A flaw was found in the Linux kernel's nfp driver. When allocating a resource mutex, the `nfp_cpp_mutex_alloc()` function can return a NULL pointer on failure. However, the `nfp_cpp_resource_find()` function might still report success, leading to a subsequent attempt to dereference the NULL pointer by `nfp_resource_try_acquire()`. This can allow a local attacker to cause a system crash, resulting in a denial of service."], "name": "CVE-2026-68328", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:enterprise_linux_nvidia:", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux for NVIDIA 26"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "package_name": "rhcos", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-08-10T12:03:04Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-68328\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-68328\nhttps://git.kernel.org/stable/c/3b1d4fc3b73ea6faf008a0996ce6190c6e43efc3\nhttps://git.kernel.org/stable/c/6dbd428119cb1fd1b73cf6968c711f4ea964dc8b\nhttps://git.kernel.org/stable/c/a61b4db34a753bdf5c9e77a7f3d3dddd41dcfacc\nhttps://git.kernel.org/stable/c/a7dc30b6828c3a30252892827b12b676749f250f\nhttps://git.kernel.org/stable/c/cfa119aa781c4044dab5b4c1e5864600f53a26bc"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[f01a2161577d31b14581e0db3bbbdfa963f145b6,6dbd428119cb1fd1b73cf6968c711f4ea964dc8b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[f01a2161577d31b14581e0db3bbbdfa963f145b6,cfa119aa781c4044dab5b4c1e5864600f53a26bc)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[f01a2161577d31b14581e0db3bbbdfa963f145b6,3b1d4fc3b73ea6faf008a0996ce6190c6e43efc3)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[f01a2161577d31b14581e0db3bbbdfa963f145b6,a7dc30b6828c3a30252892827b12b676749f250f)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[f01a2161577d31b14581e0db3bbbdfa963f145b6,a61b4db34a753bdf5c9e77a7f3d3dddd41dcfacc)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "4.11"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,4.11)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.148,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.101,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.42,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.6,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc5,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-08-10T17:00:03.763152+00:00", "updated": "2026-08-12T18:30:06.249991+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}