{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-46188", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-13T15:03:33.104Z", "datePublished": "2026-05-28T09:36:42.251Z", "dateUpdated": "2026-05-28T09:36:42.251Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-28T09:36:42.251Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nocteon_ep_vf: add NULL check for napi_build_skb()\n\nnapi_build_skb() can return NULL on allocation failure. In\n__octep_vf_oq_process_rx(), the result is used directly without a NULL\ncheck in both the single-buffer and multi-fragment paths, leading to a\nNULL pointer dereference.\n\nAdd NULL checks after both napi_build_skb() calls, properly advancing\ndescriptors and consuming remaining fragments on failure."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/marvell/octeon_ep_vf/octep_vf_rx.c"], "versions": [{"version": "1cd3b407977c3ab1d2ddc26cb7113e7fb1509cd1", "lessThan": "60246cdd4c515ea7d920cddf48932efcb990773e", "status": "affected", "versionType": "git"}, {"version": "1cd3b407977c3ab1d2ddc26cb7113e7fb1509cd1", "lessThan": "b0f4711b426a06fb4c4be85c36b9f5588d5140d3", "status": "affected", "versionType": "git"}, {"version": "1cd3b407977c3ab1d2ddc26cb7113e7fb1509cd1", "lessThan": "6fef6640bbf360e254cc0174365ed30ce3a07572", "status": "affected", "versionType": "git"}, {"version": "1cd3b407977c3ab1d2ddc26cb7113e7fb1509cd1", "lessThan": "dd66b42854705e4e4ee7f14d260f86c578bed3e3", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/marvell/octeon_ep_vf/octep_vf_rx.c"], "versions": [{"version": "6.9", "status": "affected"}, {"version": "0", "lessThan": "6.9", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.88", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.30", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.7", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1-rc1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "6.12.88"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "6.18.30"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "7.0.7"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "7.1-rc1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/60246cdd4c515ea7d920cddf48932efcb990773e"}, {"url": "https://git.kernel.org/stable/c/b0f4711b426a06fb4c4be85c36b9f5588d5140d3"}, {"url": "https://git.kernel.org/stable/c/6fef6640bbf360e254cc0174365ed30ce3a07572"}, {"url": "https://git.kernel.org/stable/c/dd66b42854705e4e4ee7f14d260f86c578bed3e3"}], "title": "octeon_ep_vf: add NULL check for napi_build_skb()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nocteon_ep_vf: add NULL check for napi_build_skb()\n\nnapi_build_skb() can return NULL on allocation failure. In\n__octep_vf_oq_process_rx(), the result is used directly without a NULL\ncheck in both the single-buffer and multi-fragment paths, leading to a\nNULL pointer dereference.\n\nAdd NULL checks after both napi_build_skb() calls, properly advancing\ndescriptors and consuming remaining fragments on failure."}], "id": "CVE-2026-46188", "lastModified": "2026-05-28T13:44:01.663", "metrics": {}, "published": "2026-05-28T10:16:34.440", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/60246cdd4c515ea7d920cddf48932efcb990773e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6fef6640bbf360e254cc0174365ed30ce3a07572"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b0f4711b426a06fb4c4be85c36b9f5588d5140d3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/dd66b42854705e4e4ee7f14d260f86c578bed3e3"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{}

{"created": "2026-05-28T12:15:21.821302+00:00", "title": "NULL Pointer Dereference in octeon_ep_vf Receive Path Causes Kernel Crash", "updated": "2026-05-28T12:15:21.821314+00:00", "vendors": [], "weaknesses": ["CWE-476"]}