{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "78d901897b3cae06b38f54e48a2378cf9da21175"
            },
            {
              "fixed": "bda487567d0b7b15dfa876511085c0666b9efad5"
            },
            {
              "fixed": "259e6cbb6a097da8ced544ee92a6fbde35aa1338"
            },
            {
              "fixed": "23d42b9a3bcd55b17d3b371544fedc708c2397e9"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "6.17.3"
            },
            {
              "fixed": "6.18"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "982a4d9a2e12b693f684eff943043a607628d871"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.18.0"
            },
            {
              "fixed": "6.18.55"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98492.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: macb: fix dma_alloc_coherent() leak on macb_alloc() error paths\n\nFix 3 leaks in macb_alloc() error paths:\n- Tx buffer allocated but crossing a 4G boundary: Tx leaked.\n- Rx buffer allocation fails: Tx leaked.\n- Rx buffer allocated but crossing a 4G boundary: Tx \u0026 Rx leaked.\n\nThis is because our error handling calls macb_free(bp) which in turn\nfrees the buffers stored in bp-\u003equeues[0], but nothing has been stored\nin there. Fix by storing allocated buffers into bp-\u003equeues[0] ASAP.",
  "id": "CVE-2026-98492",
  "modified": "2026-10-19T02:30:16.437093192Z",
  "published": "2026-10-18T15:16:21.208Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/23d42b9a3bcd55b17d3b371544fedc708c2397e9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/259e6cbb6a097da8ced544ee92a6fbde35aa1338"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bda487567d0b7b15dfa876511085c0666b9efad5"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98492.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98492"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "net: macb: fix dma_alloc_coherent() leak on macb_alloc() error paths"
}