GHSA-66XW-2CGJ-6X3V
Vulnerability from github – Published: 2026-10-18 18:31 – Updated: 2026-10-18 18:31In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: hci_sock: reject out-of-range OCF values
The raw HCI socket security filter has 128 OCF bits per supported OGF, but masks the 10-bit OCF with 127 before looking up the command. An unprivileged socket can therefore submit a reserved OCF that aliases an allowlisted command modulo 128.
A conforming controller should reject reserved opcodes. Nevertheless, the security decision must apply to the opcode that will actually be sent, especially since controller-specific behavior is outside the host stack's control.
Reject OCF values that cannot be represented by the security filter instead of aliasing them onto an unrelated command.
{
"affected": [],
"aliases": [
"CVE-2026-98460"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-10-18T16:16:56Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_sock: reject out-of-range OCF values\n\nThe raw HCI socket security filter has 128 OCF bits per supported OGF,\nbut masks the 10-bit OCF with 127 before looking up the command. An\nunprivileged socket can therefore submit a reserved OCF that aliases an\nallowlisted command modulo 128.\n\nA conforming controller should reject reserved opcodes. Nevertheless,\nthe security decision must apply to the opcode that will actually be\nsent, especially since controller-specific behavior is outside the host\nstack\u0027s control.\n\nReject OCF values that cannot be represented by the security filter\ninstead of aliasing them onto an unrelated command.",
"id": "GHSA-66xw-2cgj-6x3v",
"modified": "2026-10-18T18:31:50Z",
"published": "2026-10-18T18:31:49Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98460"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/173457fa3e99ef4188dd0fe63e4dee98d0e441a9"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/320dedad15e8bbaecc8d2d7fd4189defb84caa85"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/47d67ec424e63e61e9eb58633d43a9d58a1852b6"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/598686f5d65b9af2223ed9d22fadba16e09f6ca8"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/68f0bcc4e16e31ff8dbe6ca93116eb70d7b6ac44"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/70b0a27bdde0cb524349c8261202c7c9393cf5e9"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c1fd465ea1c5aef459f9bc3ac602b5353e0f536f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e93fad891c72deb84cae49430163b384ebcc92b1"
}
],
"schema_version": "1.4.0",
"severity": []
}
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