{
  "threat_severity" : "Moderate",
  "public_date" : "2026-05-27T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: Bluetooth: hci_event: fix potential UAF in SSP passkey handlers",
    "id" : "2482181",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2482181"
  },
  "cvss3" : {
    "cvss3_base_score" : "7.1",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-413",
  "details" : [ "In the Linux kernel, the following vulnerability has been resolved:\nBluetooth: hci_event: fix potential UAF in SSP passkey handlers\nhci_conn lookup and field access must be covered by hdev lock in\nhci_user_passkey_notify_evt() and hci_keypress_notify_evt(), otherwise\nthe connection can be freed concurrently.\nExtend the hci_dev_lock critical section to cover all conn usage in both\nhandlers.\nKeep the existing keypress notification behavior unchanged by routing\nthe early exits through a common unlock path.", "A flaw was found in the Linux kernel's Bluetooth subsystem. This vulnerability, a Use-After-Free (UAF), exists within the Secure Simple Pairing (SSP) passkey handlers. It occurs when `hci_conn` lookup and field access are performed without proper locking, allowing a connection to be freed concurrently. This could potentially enable a local attacker to cause a denial of service or execute arbitrary code." ],
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 10",
    "release_date" : "2026-06-20T00:00:00Z",
    "advisory" : "RHSA-2026:27288",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10.2",
    "package" : "kernel-0:6.12.0-211.26.1.el10_2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2026-06-16T00:00:00Z",
    "advisory" : "RHSA-2026:26428",
    "cpe" : "cpe:/a:redhat:enterprise_linux:8::nfv",
    "package" : "kernel-rt-0:4.18.0-553.134.1.rt7.475.el8_10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2026-06-16T00:00:00Z",
    "advisory" : "RHSA-2026:26427",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8",
    "package" : "kernel-0:4.18.0-553.134.1.el8_10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2026-06-22T00:00:00Z",
    "advisory" : "RHSA-2026:27789",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-687.17.1.el9_8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2026-06-22T00:00:00Z",
    "advisory" : "RHSA-2026:27789",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-687.17.1.el9_8"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Under investigation",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2026-46056\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-46056\nhttps://lore.kernel.org/linux-cve-announce/2026052754-CVE-2026-46056-0ff1@gregkh/T" ],
  "name" : "CVE-2026-46056",
  "csaw" : false
}