GHSA-3249-W698-6RQ3
Vulnerability from github – Published: 2026-10-18 18:32 – Updated: 2026-10-18 18:32In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: btintel_pcie: reject oversized TX packets in send_frame()
btintel_pcie_send_frame() eventually copies skb->data into a fixed BTINTEL_PCIE_BUFFER_SIZE (4096) DMA buffer via memcpy() in btintel_pcie_prepare_tx(), with a 4-byte PCIe type header prepended. A user-space process with HCI_CHANNEL_USER access can inject an oversized packet and overflow the buffer.
Reject packets larger than BTINTEL_PCIE_BUFFER_SIZE - BTINTEL_PCIE_HCI_TYPE_LEN on entry.
{
"affected": [],
"aliases": [
"CVE-2026-98730"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-10-18T16:17:26Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: btintel_pcie: reject oversized TX packets in send_frame()\n\nbtintel_pcie_send_frame() eventually copies skb-\u003edata into a fixed\nBTINTEL_PCIE_BUFFER_SIZE (4096) DMA buffer via memcpy() in\nbtintel_pcie_prepare_tx(), with a 4-byte PCIe type header prepended.\nA user-space process with HCI_CHANNEL_USER access can inject an\noversized packet and overflow the buffer.\n\nReject packets larger than\nBTINTEL_PCIE_BUFFER_SIZE - BTINTEL_PCIE_HCI_TYPE_LEN on entry.",
"id": "GHSA-3249-w698-6rq3",
"modified": "2026-10-18T18:32:01Z",
"published": "2026-10-18T18:32:01Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98730"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3d6ba6be9bef13edcd4ad74f7cfdd0c34db4d2bc"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/84df222de86eabed543361025ed54ce838c0b573"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/9806a748f9ab223b733624367b6ddda77fb9450e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f771f96557a4d953a7e4d045870547271e36e819"
}
],
"schema_version": "1.4.0",
"severity": []
}
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