GHSA-23G6-RFFG-7F3P
Vulnerability from github – Published: 2025-12-08 03:31 – Updated: 2025-12-08 03:31In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: MGMT: Fix OOB access in parse_adv_monitor_pattern()
In the parse_adv_monitor_pattern() function, the value of the 'length' variable is currently limited to HCI_MAX_EXT_AD_LENGTH(251). The size of the 'value' array in the mgmt_adv_pattern structure is 31. If the value of 'pattern[i].length' is set in the user space and exceeds 31, the 'patterns[i].value' array can be accessed out of bound when copied.
Increasing the size of the 'value' array in the 'mgmt_adv_pattern' structure will break the userspace. Considering this, and to avoid OOB access revert the limits for 'offset' and 'length' back to the value of HCI_MAX_AD_LENGTH.
Found by InfoTeCS on behalf of Linux Verification Center (linuxtesting.org) with SVACE.
{
"affected": [],
"aliases": [
"CVE-2025-40294"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-12-08T01:16:01Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: MGMT: Fix OOB access in parse_adv_monitor_pattern()\n\nIn the parse_adv_monitor_pattern() function, the value of\nthe \u0027length\u0027 variable is currently limited to HCI_MAX_EXT_AD_LENGTH(251).\nThe size of the \u0027value\u0027 array in the mgmt_adv_pattern structure is 31.\nIf the value of \u0027pattern[i].length\u0027 is set in the user space\nand exceeds 31, the \u0027patterns[i].value\u0027 array can be accessed\nout of bound when copied.\n\nIncreasing the size of the \u0027value\u0027 array in\nthe \u0027mgmt_adv_pattern\u0027 structure will break the userspace.\nConsidering this, and to avoid OOB access revert the limits for \u0027offset\u0027\nand \u0027length\u0027 back to the value of HCI_MAX_AD_LENGTH.\n\nFound by InfoTeCS on behalf of Linux Verification Center\n(linuxtesting.org) with SVACE.",
"id": "GHSA-23g6-rffg-7f3p",
"modified": "2025-12-08T03:31:00Z",
"published": "2025-12-08T03:31:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-40294"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3a50d59b3781bc3a4e96533612509546a4c309a7"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/4b7d4aa5399b5a64caee639275615c63c008540d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5f7350ff2b179764a4f40ba4161b60b8aaef857b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8d59fba49362c65332395789fd82771f1028d87e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/96616530f524a0a76248cd44201de0a9e8526190"
}
],
"schema_version": "1.4.0",
"severity": []
}
Sightings
| Author | Source | Type | Date |
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