{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "f984b51e0779a6dd30feedc41404013ca54e5d05"
            },
            {
              "fixed": "faaf95135184208ee3ac6f33175c8d1800669dfc"
            },
            {
              "fixed": "201a01102c529772168181190cb084471082cf5c"
            },
            {
              "fixed": "8464427e1c177809a9488a97dfa2807d9dcf323b"
            },
            {
              "fixed": "724cd84b0546c07806840fa658714488553d13a2"
            },
            {
              "fixed": "144f29e85702234b23d2a62abf723e6a17eb5427"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.6.27"
            },
            {
              "fixed": "6.6.148"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.101"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.42"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68176.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Fix mmiotrace possible NULL dereferencing of hiter-\u003edev\n\nIf the mmio_pipe_open() fails to find a PCI device, the hiter-\u003edev\nwill be assigned to NULL. The mmiotrace read() function dereferences the\nhiter-\u003edev if hiter exists.\n\nChange the test of the read to not only check hiter being NULL, but also\nthe hiter-\u003edev before dereferencing it.",
  "id": "CVE-2026-68176",
  "modified": "2026-08-12T03:51:42.575104755Z",
  "published": "2026-08-10T11:59:47.298Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/144f29e85702234b23d2a62abf723e6a17eb5427"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/201a01102c529772168181190cb084471082cf5c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/724cd84b0546c07806840fa658714488553d13a2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8464427e1c177809a9488a97dfa2807d9dcf323b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/faaf95135184208ee3ac6f33175c8d1800669dfc"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68176.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68176"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "tracing: Fix mmiotrace possible NULL dereferencing of hiter-\u003edev"
}