{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "4a61cd6687fc6348d08724676d34e38160d6cf9b"
            },
            {
              "fixed": "c60f41022eaad2a1dafecd3ae6f249a3bd6d4b6e"
            },
            {
              "fixed": "a24a676329d40481b2331bfa1418a679577dfd3a"
            },
            {
              "fixed": "77eef9f2eef045c3c37a3df82d3e661afb866b98"
            },
            {
              "fixed": "cf70cedce327833296ebe6043364d1e44b76a2ab"
            },
            {
              "fixed": "276820278e9717cc7d4bb32381892dd3ddf418d4"
            },
            {
              "fixed": "1cb97b1225450af3f7b728777929ba50c6a58ced"
            },
            {
              "fixed": "c9efde1e537baed7648a94022b43836a348a074f"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.7.0"
            },
            {
              "fixed": "5.15.202"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.165"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.128"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.75"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.14"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "6.19.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46267.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: hci: shdlc: Stop timers and work before freeing context\n\nllc_shdlc_deinit() purges SHDLC skb queues and frees the llc_shdlc\nstructure while its timers and state machine work may still be active.\n\nTimer callbacks can schedule sm_work, and sm_work accesses SHDLC state\nand the skb queues. If teardown happens in parallel with a queued/running\nwork item, it can lead to UAF and other shutdown races.\n\nStop all SHDLC timers and cancel sm_work synchronously before purging the\nqueues and freeing the context.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE.",
  "id": "CVE-2026-46267",
  "modified": "2026-07-24T03:57:05.725189340Z",
  "published": "2026-06-03T15:50:09.035Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1cb97b1225450af3f7b728777929ba50c6a58ced"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/276820278e9717cc7d4bb32381892dd3ddf418d4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/77eef9f2eef045c3c37a3df82d3e661afb866b98"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a24a676329d40481b2331bfa1418a679577dfd3a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c60f41022eaad2a1dafecd3ae6f249a3bd6d4b6e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c9efde1e537baed7648a94022b43836a348a074f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cf70cedce327833296ebe6043364d1e44b76a2ab"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46267.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46267"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "summary": "nfc: hci: shdlc: Stop timers and work before freeing context"
}