{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2023-54038", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-12-24T10:53:46.181Z", "datePublished": "2025-12-24T10:56:04.623Z", "dateUpdated": "2025-12-24T10:56:04.623Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-12-24T10:56:04.623Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_conn: return ERR_PTR instead of NULL when there is no link\n\nhci_connect_sco currently returns NULL when there is no link (i.e. when\nhci_conn_link() returns NULL).\n\nsco_connect() expects an ERR_PTR in case of any error (see line 266 in\nsco.c). Thus, hcon set as NULL passes through to sco_conn_add(), which\ntries to get hcon->hdev, resulting in dereferencing a NULL pointer as\nreported by syzkaller.\n\nThe same issue exists for iso_connect_cis() calling hci_connect_cis().\n\nThus, make hci_connect_sco() and hci_connect_cis() return ERR_PTR\ninstead of NULL."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/bluetooth/hci_conn.c"], "versions": [{"version": "06149746e7203d5ffe2d6faf9799ee36203aa8b8", "lessThan": "357ab53c83a5322437fa434e9a9e3e0bafe6b383", "status": "affected", "versionType": "git"}, {"version": "06149746e7203d5ffe2d6faf9799ee36203aa8b8", "lessThan": "b4066eb04bb67e7ff66e5aaab0db4a753f37eaad", "status": "affected", "versionType": "git"}, {"version": "f72fc94a17d45be98aecfd59c39b5b24a6a342e2", "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_conn.c"], "versions": [{"version": "6.4", "status": "affected"}, {"version": "0", "lessThan": "6.4", "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": "6.4", "versionEndExcluding": "6.4.7"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "6.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.3.8"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/357ab53c83a5322437fa434e9a9e3e0bafe6b383"}, {"url": "https://git.kernel.org/stable/c/b4066eb04bb67e7ff66e5aaab0db4a753f37eaad"}], "title": "Bluetooth: hci_conn: return ERR_PTR instead of NULL when there is no link", "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_conn: return ERR_PTR instead of NULL when there is no link\n\nhci_connect_sco currently returns NULL when there is no link (i.e. when\nhci_conn_link() returns NULL).\n\nsco_connect() expects an ERR_PTR in case of any error (see line 266 in\nsco.c). Thus, hcon set as NULL passes through to sco_conn_add(), which\ntries to get hcon->hdev, resulting in dereferencing a NULL pointer as\nreported by syzkaller.\n\nThe same issue exists for iso_connect_cis() calling hci_connect_cis().\n\nThus, make hci_connect_sco() and hci_connect_cis() return ERR_PTR\ninstead of NULL."}], "id": "CVE-2023-54038", "lastModified": "2025-12-29T15:58:56.260", "metrics": {}, "published": "2025-12-24T11:15:56.793", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/357ab53c83a5322437fa434e9a9e3e0bafe6b383"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b4066eb04bb67e7ff66e5aaab0db4a753f37eaad"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: Bluetooth: hci_conn: return ERR_PTR instead of NULL when there is no link", "id": "2424931", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2424931"}, "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": ["In the Linux kernel, the following vulnerability has been resolved:\nBluetooth: hci_conn: return ERR_PTR instead of NULL when there is no link\nhci_connect_sco currently returns NULL when there is no link (i.e. when\nhci_conn_link() returns NULL).\nsco_connect() expects an ERR_PTR in case of any error (see line 266 in\nsco.c). Thus, hcon set as NULL passes through to sco_conn_add(), which\ntries to get hcon->hdev, resulting in dereferencing a NULL pointer as\nreported by syzkaller.\nThe same issue exists for iso_connect_cis() calling hci_connect_cis().\nThus, make hci_connect_sco() and hci_connect_cis() return ERR_PTR\ninstead of NULL."], "name": "CVE-2023-54038", "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": "2025-12-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-54038\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-54038\nhttps://lore.kernel.org/linux-cve-announce/2025122439-CVE-2023-54038-41bb@gregkh/T"], "threat_severity": "Important"}

{}