linux — security advisory
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: Avoid use-after-free in dbg for hci_add_adv_monitor() KSAN reports use-after-free in hci_add_adv_monitor(). While adding an adv monitor, hci_add_adv_monitor() calls -> msft_add_monitor_pattern() calls -> msft_add_monitor_sync() calls -> msft_le_monitor_advertisement_cb() calls in an error case -> hci_free_adv_monitor() which frees the *moniter. This is referenced by bt_dev_dbg() in hci_add_adv_monitor(). Fix the bt_dev_dbg() by using handle instead of monitor->handle.
- Products
- linux
- Affected versions
- 6.1.27-1, 6.1.37-1, 6.1.38-1, 6.1.38-2, 6.1.38-2~bpo11+1, 6.1.38-3, 6.1.38-4, 6.1.38-4~bpo11+1, 6.1.52-1, 6.1.55-1~bpo11+1
- Fixed versions
- 6.1.55-1, 6.5.3-1
- CVEs
- CVE-2023-53828
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 16:09 UTC · Revision 1
Source evidence
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: Avoid use-after-free in dbg for hci_add_adv_monitor() KSAN reports use-after-free in hci_add_adv_monitor(). While adding an adv monitor, hci_add_adv_monitor() calls -> msft_add_monitor_pattern() calls -> msft_add_monitor_sync() calls -> msft_le_monitor_advertisement_cb() calls in an error case -> hci_free_adv_monitor() which frees the *moniter. This is referenced by bt_dev_dbg() in hci_add_adv_monitor(). Fix the bt_dev_dbg() by using handle instead of monitor->handle.
osv:DEBIAN-CVE-2023-53828
linux
Fixed versions: 6.1.55-1
linux
Fixed versions: 6.5.3-1
linux
Fixed versions: 6.5.3-1
Complete source record
{
"id": "05a351157c051e6eb4011e311fabef188993c5a75beabddd9bf0262df89f0d04",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2023-53828",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2023-53828",
"summary": "In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: Avoid use-after-free in dbg for hci_add_adv_monitor() KSAN reports use-after-free in hci_add_adv_monitor(). While adding an adv monitor, hci_add_adv_monitor() calls -> msft_add_monitor_pattern() calls -> msft_add_monitor_sync() calls -> msft_le_monitor_advertisement_cb() calls in an error case -> hci_free_adv_monitor() which frees the *moniter. This is referenced by bt_dev_dbg() in hci_add_adv_monitor(). Fix the bt_dev_dbg() by using handle instead of monitor->handle.",
"evidence": "osv:DEBIAN-CVE-2023-53828",
"products": [
{
"name": {
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"evidence": "/affected/0/package/name"
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"metrics": [
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"affected": [
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"ecosystem": "Debian:12"
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"6.1.38-4~bpo11+1",
"6.1.52-1",
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"database_specific": {
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},
"ecosystem_specific": {
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}
},
{
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{
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],
"package": {
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"purl": "pkg:deb/debian/linux?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-53828.json"
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},
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}
}
],
"modified": "2026-10-26T18:02:48.319792050Z",
"provider": "osv",
"upstream": [
"CVE-2023-53828"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2023-53828"
]
},
"related_cves": [
{
"value": "CVE-2023-53828",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 456854,
"published_at": "2025-12-09T16:17:21.68+00:00"
}