{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "4174c0c331a2aa3322d3b3be532808deb041b37d"
            },
            {
              "fixed": "cef4c5b9aca24651d069adf9462b221df6a2a669"
            },
            {
              "fixed": "0ab482b2195edc000262f0eae1cdcb416b8f335d"
            },
            {
              "fixed": "5f3a13e0bb5ebcc1ca2dfda42ea40b9f3c2be6ea"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.16.0"
            },
            {
              "fixed": "6.18.46"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74741.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ngbe: fix NULL pointer dereference in non-MSI-X interrupt enabling\n\nIn non-MSI-X mode (such as legacy INTx or single MSI), wx-\u003emsix_entry is\nnot allocated or initialized. Calling NGBE_INTR_MISC(wx) dereferences\nwx-\u003emsix_entry-\u003eentry, leading to a NULL pointer dereference crash.\n\nThis issue was introduced by fixing the IRQ vector when the number of\nVFs is 7. Fix the issue by explicitly checking `pdev-\u003emsix_enabled` to\ndetermine the correct vector index.\n\nAdditionally, as a side fix, set the interrupt mask to BIT(0) for the\nnon-MSI-X fallback. In MSI/INTx mode, the MISC and queue interrupts\nshare vector 0, and the WX_PX_MISC_IVAR register is only valid in the\nMSI-X case. Thus, BIT(0) is the correct mask for the miscellaneous cause\nwhen MSI-X is disabled.",
  "id": "CVE-2026-74741",
  "modified": "2026-08-28T03:30:43.308157525Z",
  "published": "2026-08-26T14:36:52.937Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0ab482b2195edc000262f0eae1cdcb416b8f335d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5f3a13e0bb5ebcc1ca2dfda42ea40b9f3c2be6ea"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cef4c5b9aca24651d069adf9462b221df6a2a669"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74741.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-74741"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "net: ngbe: fix NULL pointer dereference in non-MSI-X interrupt enabling"
}