{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "4be423572da1f4c11f45168e3fafda870ddac9f8"
            },
            {
              "fixed": "17e1aae19a06d9f6da4b46d54fa2aeab77ec0c69"
            },
            {
              "fixed": "a8d5370eef00eca132a292b1901c9914c817e385"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "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-2026-74403.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: ccp - Check for page allocation failure correctly in TIO\n\nSashiko notes:\n\n\u003e if __snp_alloc_firmware_pages() returns NULL under memory pressure, is it\n\u003e safe to pass it directly to page_address()?\n\u003e\n\u003e On architectures without HASHED_PAGE_VIRTUAL, page_address(NULL) might\n\u003e compute a deterministic but invalid, non-zero virtual address. The\n\u003e subsequent if (tio_status) check would then evaluate to true, and\n\u003e sev_tsm_init_locked() would dereference the invalid pointer.\n\nIndeed, page_address(NULL) will return non-NULL garbage here. Fix this by\nchecking the page allocation itself for NULL, not the resulting virtual\naddress.",
  "id": "CVE-2026-74403",
  "modified": "2026-08-16T03:30:59.652818740Z",
  "published": "2026-08-15T05:59:13.399Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/17e1aae19a06d9f6da4b46d54fa2aeab77ec0c69"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a8d5370eef00eca132a292b1901c9914c817e385"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74403.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-74403"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "crypto: ccp - Check for page allocation failure correctly in TIO"
}