CVE-2026-46188 (GCVE-0-2026-46188)
Vulnerability from cvelistv5
Published
2026-05-28 09:36
Modified
2026-06-14 18:01
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: octeon_ep_vf: add NULL check for napi_build_skb() napi_build_skb() can return NULL on allocation failure. In __octep_vf_oq_process_rx(), the result is used directly without a NULL check in both the single-buffer and multi-fragment paths, leading to a NULL pointer dereference. Add NULL checks after both napi_build_skb() calls, properly advancing descriptors and consuming remaining fragments on failure.
References
Impacted products
Vendor Product Version
Linux Linux Version: 1cd3b407977c3ab1d2ddc26cb7113e7fb1509cd1
Version: 1cd3b407977c3ab1d2ddc26cb7113e7fb1509cd1
Version: 1cd3b407977c3ab1d2ddc26cb7113e7fb1509cd1
Version: 1cd3b407977c3ab1d2ddc26cb7113e7fb1509cd1
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{
  "containers": {
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/marvell/octeon_ep_vf/octep_vf_rx.c"
          ],
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          "product": "Linux",
          "programFiles": [
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "version": "6.9"
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              "version": "0",
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      "cpeApplicability": [
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              "cpeMatch": [
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              ],
              "negate": false,
              "operator": "OR"
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          ]
        }
      ],
      "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-14T18:01:19.185Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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          "url": "https://git.kernel.org/stable/c/60246cdd4c515ea7d920cddf48932efcb990773e"
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        },
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        },
        {
          "url": "https://git.kernel.org/stable/c/dd66b42854705e4e4ee7f14d260f86c578bed3e3"
        }
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      "title": "octeon_ep_vf: add NULL check for napi_build_skb()",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-46188",
    "datePublished": "2026-05-28T09:36:42.251Z",
    "dateReserved": "2026-05-13T15:03:33.104Z",
    "dateUpdated": "2026-06-14T18:01:19.185Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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