{"id":"CVE-2026-46188","title":"octeon_ep_vf: add NULL check for napi_build_skb()","summary":"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 wi…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 1cd3b407977c3ab1d2ddc26cb7113e7fb1509cd1 < 60246cdd4c515ea7d920cddf48932efcb990773e","Linux >= 1cd3b407977c3ab1d2ddc26cb7113e7fb1509cd1 < b0f4711b426a06fb4c4be85c36b9f5588d5140d3","Linux >= 1cd3b407977c3ab1d2ddc26cb7113e7fb1509cd1 < 6fef6640bbf360e254cc0174365ed30ce3a07572","Linux >= 1cd3b407977c3ab1d2ddc26cb7113e7fb1509cd1 < dd66b42854705e4e4ee7f14d260f86c578bed3e3","Linux 6.9"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-06T16:11:32.078230Z"},"published":"2026-05-28","updated":"2026-11-06","sourceUpdated":"2026-11-06T16:13:43.765Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-46188","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"}],"tags":["cve.org"],"epss":0.00127,"epssPercentile":0.02429,"ingestedAt":"2026-11-06T16:57:43.325Z","slug":"CVE-2026-46188","body":"## Overview\n\nIn 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.\n\n## Affected\n\n- `Linux >= 1cd3b407977c3ab1d2ddc26cb7113e7fb1509cd1 < 60246cdd4c515ea7d920cddf48932efcb990773e`\n- `Linux >= 1cd3b407977c3ab1d2ddc26cb7113e7fb1509cd1 < b0f4711b426a06fb4c4be85c36b9f5588d5140d3`\n- `Linux >= 1cd3b407977c3ab1d2ddc26cb7113e7fb1509cd1 < 6fef6640bbf360e254cc0174365ed30ce3a07572`\n- `Linux >= 1cd3b407977c3ab1d2ddc26cb7113e7fb1509cd1 < dd66b42854705e4e4ee7f14d260f86c578bed3e3`\n- `Linux 6.9`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}