{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "0cfdd8f92cac01afbb12e4500514036a2b78756b"
            },
            {
              "fixed": "257cdf0c5ced9c0fba8aba501d94b0a5fcef2086"
            },
            {
              "fixed": "22546729b96fc873b23065dc49e3d73c45cfb874"
            },
            {
              "fixed": "5eedbfd82c2884e0010fdfb3c9446a6ebcadb691"
            },
            {
              "fixed": "f0858e1d5624bb120b198f2a8528f97a9b0ae069"
            },
            {
              "fixed": "6180a296ca65b08a81914805cbc0f78da5f10a1f"
            },
            {
              "fixed": "ea0b5d0fe96356dce38f98375a57c52a04e13712"
            },
            {
              "fixed": "83bcf9228b0501694fb2589ed1d142855a2887f2"
            },
            {
              "fixed": "5a8db80f721deee8e916c2cfdee78decda02ce4f"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.11.0"
            },
            {
              "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": "6.6.140"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.86"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.27"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46027.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/smc: avoid early lgr access in smc_clc_wait_msg\n\nA CLC decline can be received while the handshake is still in an early\nstage, before the connection has been associated with a link group.\n\nThe decline handling in smc_clc_wait_msg() updates link-group level sync\nstate for first-contact declines, but that state only exists after link\ngroup setup has completed. Guard the link-group update accordingly and\nkeep the per-socket peer diagnosis handling unchanged.\n\nThis preserves the existing sync_err handling for established link-group\ncontexts and avoids touching link-group state before it is available.",
  "id": "CVE-2026-46027",
  "modified": "2026-07-15T01:48:58.419560041Z",
  "published": "2026-05-27T12:56:35.628Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/22546729b96fc873b23065dc49e3d73c45cfb874"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/257cdf0c5ced9c0fba8aba501d94b0a5fcef2086"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5a8db80f721deee8e916c2cfdee78decda02ce4f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5eedbfd82c2884e0010fdfb3c9446a6ebcadb691"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6180a296ca65b08a81914805cbc0f78da5f10a1f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/83bcf9228b0501694fb2589ed1d142855a2887f2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ea0b5d0fe96356dce38f98375a57c52a04e13712"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f0858e1d5624bb120b198f2a8528f97a9b0ae069"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46027.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46027"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "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/smc: avoid early lgr access in smc_clc_wait_msg"
}