{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "1ababeba4a21f3dba3da3523c670b207fb2feb62"
            },
            {
              "fixed": "0348fa0ada37cef7c6b5ab2a428bb2c6aee784e4"
            },
            {
              "fixed": "83d705d35e583cb1b1eacf196dfe7b77d442018e"
            },
            {
              "fixed": "d1bd8b9edc6752d10f84d28ff64f842401ce336d"
            },
            {
              "fixed": "50352fc103928e10e8729abc79a0d05abef26c4d"
            },
            {
              "fixed": "bc9843c39f9932a8b36efd1d362ea00bb88e4e78"
            },
            {
              "fixed": "c5cedee5d97382176573bbe21e1724e737a5eb64"
            },
            {
              "fixed": "a25853c9feea7bbf31d157ff6e004d2d3b4f7f13"
            },
            {
              "fixed": "06413793526251870e20402c39930804f14d59c0"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.10.0"
            },
            {
              "fixed": "5.10.258"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.209"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.175"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.136"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.83"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.25"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "6.19.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23442.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: add NULL checks for idev in SRv6 paths\n\n__in6_dev_get() can return NULL when the device has no IPv6 configuration\n(e.g. MTU \u003c IPV6_MIN_MTU or after NETDEV_UNREGISTER).\n\nAdd NULL checks for idev returned by __in6_dev_get() in both\nseg6_hmac_validate_skb() and ipv6_srh_rcv() to prevent potential NULL\npointer dereferences.",
  "id": "CVE-2026-23442",
  "modified": "2026-07-27T03:56:23.804754290Z",
  "published": "2026-04-03T15:15:26.851Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0348fa0ada37cef7c6b5ab2a428bb2c6aee784e4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/06413793526251870e20402c39930804f14d59c0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/50352fc103928e10e8729abc79a0d05abef26c4d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/83d705d35e583cb1b1eacf196dfe7b77d442018e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a25853c9feea7bbf31d157ff6e004d2d3b4f7f13"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bc9843c39f9932a8b36efd1d362ea00bb88e4e78"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c5cedee5d97382176573bbe21e1724e737a5eb64"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d1bd8b9edc6752d10f84d28ff64f842401ce336d"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23442.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23442"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "summary": "ipv6: add NULL checks for idev in SRv6 paths"
}