CVE-2026-23299
Full vulnerability record from the local CVENow database.
Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: purge error queues in socket destructors When TX timestamping is enabled via SO_TIMESTAMPING, SKBs may be queued into sk_error_queue and will stay there until consumed. If userspace never gets to read the timestamps, or if the controller is removed unexpectedly, these SKBs will leak. Fix by adding skb_queue_purge() calls for sk_error_queue in affected bluetooth destructors. RFCOMM does not currently use sk_error_queue.
Severity
MEDIUM
CVSS score
5.5
(v3.1)
Vulnerability status
Analyzed
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2026-03-25 11:16:25.487000
Last modified
2026-11-05 22:18:12.920000
View original CVE JSON
{
"id": "CVE-2026-23299",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2026-03-25T11:16:25.487",
"lastModified": "2026-11-05T22:18:12.920",
"vulnStatus": "Analyzed",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: purge error queues in socket destructors\n\nWhen TX timestamping is enabled via SO_TIMESTAMPING, SKBs may be queued\ninto sk_error_queue and will stay there until consumed. If userspace never\ngets to read the timestamps, or if the controller is removed unexpectedly,\nthese SKBs will leak.\n\nFix by adding skb_queue_purge() calls for sk_error_queue in affected\nbluetooth destructors. RFCOMM does not currently use sk_error_queue."
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nBluetooth: purgar colas de error en destructores de sockets\n\nCuando la marca de tiempo TX está habilitada a través de SO_TIMESTAMPING, los SKB pueden ser encolados en sk_error_queue y permanecerán allí hasta ser consumidos. Si el espacio de usuario nunca llega a leer las marcas de tiempo, o si el controlador es eliminado inesperadamente, estos SKB se filtrarán.\n\nSolución añadiendo llamadas a skb_queue_purge() para sk_error_queue en los destructores de bluetooth afectados. RFCOMM no utiliza actualmente sk_error_queue."
}
],
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "unaffected",
"programFiles": [
"net/bluetooth/hci_sock.c",
"net/bluetooth/iso.c",
"net/bluetooth/l2cap_sock.c",
"net/bluetooth/sco.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "134f4b39df7b77225a80ef585c15d46f964f5e6f",
"lessThan": "2b6c942a526635f5c61d2f000258e620da32d3a7",
"versionType": "git",
"status": "affected"
},
{
"version": "134f4b39df7b77225a80ef585c15d46f964f5e6f",
"lessThan": "3de7c10a950b36affc692d8bd2ac713852580e56",
"versionType": "git",
"status": "affected"
},
{
"version": "134f4b39df7b77225a80ef585c15d46f964f5e6f",
"lessThan": "21e4271e65094172aadd5beb8caea95dd0fbf6d7",
"versionType": "git",
"status": "affected"
}
]
},
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "affected",
"programFiles": [
"net/bluetooth/hci_sock.c",
"net/bluetooth/iso.c",
"net/bluetooth/l2cap_sock.c",
"net/bluetooth/sco.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "6.15",
"status": "affected"
},
{
"version": "0",
"lessThan": "6.15",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.18.17",
"lessThanOrEqual": "6.18.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.19.7",
"lessThanOrEqual": "6.19.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "7.0",
"lessThanOrEqual": "*",
"versionType": "original_commit_for_fix",
"status": "unaffected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Primary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-11-05T21:25:59.052559Z",
"id": "CVE-2026-23299",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Primary",
"description": [
{
"lang": "en",
"value": "CWE-772"
}
]
}
],
"configurations": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.15",
"versionEndExcluding": "6.18.17",
"matchCriteriaId": "7B6E9607-896D-4A84-B5CB-3311EB1230BD"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.19",
"versionEndExcluding": "6.19.7",
"matchCriteriaId": "69245D10-0B71-485E-80C3-A64F077004D3"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*",
"matchCriteriaId": "F253B622-8837-4245-BCE5-A7BF8FC76A16"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/21e4271e65094172aadd5beb8caea95dd0fbf6d7",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
]
},
{
"url": "https://git.kernel.org/stable/c/2b6c942a526635f5c61d2f000258e620da32d3a7",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
]
},
{
"url": "https://git.kernel.org/stable/c/3de7c10a950b36affc692d8bd2ac713852580e56",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
]
}
]
}