{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-46267",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-46267"
  ],
  "published": "2026-06-03T15:49:47Z",
  "summary": "nfc: hci: shdlc: Stop timers and work before freeing context",
  "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.",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.1.47-1+rpt4"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-2712",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v6",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7l",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v8",
            "binary_version": "1:6.1.47-1+rpt4"
          }
        ]
      },
      "database_specific": {
        "per_version": {
          "1:6.1.47-1+rpt4": {
            "linux_commit": "655fc658a15ae7a6f37103754adb39ba52a9a14e",
            "upstream_version": "6.1.47",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.1.165",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-46267"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/c60f41022eaad2a1dafecd3ae6f249a3bd6d4b6e"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/a24a676329d40481b2331bfa1418a679577dfd3a"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/77eef9f2eef045c3c37a3df82d3e661afb866b98"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/cf70cedce327833296ebe6043364d1e44b76a2ab"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/276820278e9717cc7d4bb32381892dd3ddf418d4"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/1cb97b1225450af3f7b728777929ba50c6a58ced"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/c9efde1e537baed7648a94022b43836a348a074f"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-06-03T15:49:47Z"
  }
}