{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2023-54210", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-12-30T12:06:44.500Z", "datePublished": "2025-12-30T12:11:08.682Z", "dateUpdated": "2025-12-30T12:11:08.682Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-12-30T12:11:08.682Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_sync: Avoid use-after-free in dbg for hci_remove_adv_monitor()\n\nKASAN reports that there's a use-after-free in\nhci_remove_adv_monitor(). Trawling through the disassembly, you can\nsee that the complaint is from the access in bt_dev_dbg() under the\nHCI_ADV_MONITOR_EXT_MSFT case. The problem case happens because\nmsft_remove_monitor() can end up freeing the monitor\nstructure. Specifically:\n hci_remove_adv_monitor() ->\n msft_remove_monitor() ->\n msft_remove_monitor_sync() ->\n msft_le_cancel_monitor_advertisement_cb() ->\n hci_free_adv_monitor()\n\nLet's fix the problem by just stashing the relevant data when it's\nstill valid."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/bluetooth/hci_core.c"], "versions": [{"version": "7cf5c2978f23fdbb2dd7b4e8b07e362ae2d8211c", "lessThan": "0d4d6b083da9b033ddccef72d77f373c819ae3ea", "status": "affected", "versionType": "git"}, {"version": "7cf5c2978f23fdbb2dd7b4e8b07e362ae2d8211c", "lessThan": "bf00c2c8f6254f44ac041aa9a311ae9e0caf692b", "status": "affected", "versionType": "git"}, {"version": "7cf5c2978f23fdbb2dd7b4e8b07e362ae2d8211c", "lessThan": "de6dfcefd107667ce2dbedf4d9337f5ed557a4a1", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/bluetooth/hci_core.c"], "versions": [{"version": "6.0", "status": "affected"}, {"version": "0", "lessThan": "6.0", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.42", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.4.7", "lessThanOrEqual": "6.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.5", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.1.42"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.4.7"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.5"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/0d4d6b083da9b033ddccef72d77f373c819ae3ea"}, {"url": "https://git.kernel.org/stable/c/bf00c2c8f6254f44ac041aa9a311ae9e0caf692b"}, {"url": "https://git.kernel.org/stable/c/de6dfcefd107667ce2dbedf4d9337f5ed557a4a1"}], "title": "Bluetooth: hci_sync: Avoid use-after-free in dbg for hci_remove_adv_monitor()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_sync: Avoid use-after-free in dbg for hci_remove_adv_monitor()\n\nKASAN reports that there's a use-after-free in\nhci_remove_adv_monitor(). Trawling through the disassembly, you can\nsee that the complaint is from the access in bt_dev_dbg() under the\nHCI_ADV_MONITOR_EXT_MSFT case. The problem case happens because\nmsft_remove_monitor() can end up freeing the monitor\nstructure. Specifically:\n hci_remove_adv_monitor() ->\n msft_remove_monitor() ->\n msft_remove_monitor_sync() ->\n msft_le_cancel_monitor_advertisement_cb() ->\n hci_free_adv_monitor()\n\nLet's fix the problem by just stashing the relevant data when it's\nstill valid."}], "id": "CVE-2023-54210", "lastModified": "2025-12-31T20:43:05.160", "metrics": {}, "published": "2025-12-30T13:16:09.197", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0d4d6b083da9b033ddccef72d77f373c819ae3ea"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/bf00c2c8f6254f44ac041aa9a311ae9e0caf692b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/de6dfcefd107667ce2dbedf4d9337f5ed557a4a1"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: Bluetooth: hci_sync: Avoid use-after-free in dbg for hci_remove_adv_monitor()", "id": "2426229", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2426229"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "details": ["No description is available for this CVE."], "name": "CVE-2023-54210", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Under investigation", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-12-30T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-54210\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-54210\nhttps://lore.kernel.org/linux-cve-announce/2025123024-CVE-2023-54210-7a73@gregkh/T"], "threat_severity": "Important"}

{}