{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "36bd28c1cb0dbf48645cfe43159907fb3253b33a"
            },
            {
              "fixed": "7edd4db82f9429591de10be4c904c817f12ba029"
            },
            {
              "fixed": "112490467586146d323cb7230b1d72137e36900c"
            },
            {
              "fixed": "f7aebaee2961bfcb86f282202d3dbd9b69db1a7c"
            },
            {
              "fixed": "4c1b25d85f4c9a0f85f3f8c39988ad266a3f3095"
            },
            {
              "fixed": "05f789fa90d95d5771230e78453cedff2486039d"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.4.0"
            },
            {
              "fixed": "6.6.145"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.97"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.40"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74263.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: wwan: t7xx: check skb_clone in control TX\n\nt7xx_port_ctrl_tx() clones each skb fragment before passing it to the\nport transmit path. The clone is used immediately to set cloned-\u003elen, so\nan skb_clone() failure results in a NULL pointer dereference.\n\nCheck the clone before using it. If previous fragments were already\nqueued, preserve the driver's existing partial-write behavior by\nreturning the number of bytes submitted so far.",
  "id": "CVE-2026-74263",
  "modified": "2026-08-18T03:31:00.447447581Z",
  "published": "2026-08-15T05:57:39.660Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/05f789fa90d95d5771230e78453cedff2486039d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/112490467586146d323cb7230b1d72137e36900c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4c1b25d85f4c9a0f85f3f8c39988ad266a3f3095"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7edd4db82f9429591de10be4c904c817f12ba029"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f7aebaee2961bfcb86f282202d3dbd9b69db1a7c"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74263.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-74263"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "net: wwan: t7xx: check skb_clone in control TX"
}