{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-53016", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-03-27T16:40:15.750Z", "datePublished": "2025-03-27T16:43:44.528Z", "dateUpdated": "2025-10-01T17:20:23.878Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T07:47:44.298Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: Fix possible deadlock in rfcomm_sk_state_change\n\nsyzbot reports a possible deadlock in rfcomm_sk_state_change [1].\nWhile rfcomm_sock_connect acquires the sk lock and waits for\nthe rfcomm lock, rfcomm_sock_release could have the rfcomm\nlock and hit a deadlock for acquiring the sk lock.\nHere's a simplified flow:\n\nrfcomm_sock_connect:\n lock_sock(sk)\n rfcomm_dlc_open:\n rfcomm_lock()\n\nrfcomm_sock_release:\n rfcomm_sock_shutdown:\n rfcomm_lock()\n __rfcomm_dlc_close:\n rfcomm_k_state_change:\n\t lock_sock(sk)\n\nThis patch drops the sk lock before calling rfcomm_dlc_open to\navoid the possible deadlock and holds sk's reference count to\nprevent use-after-free after rfcomm_dlc_open completes."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/bluetooth/rfcomm/sock.c"], "versions": [{"version": "1804fdf6e494e5e2938c65d8391690b59bcff897", "lessThan": "98aec50ff7f60cc6f2d6a4396b475c547e58b04d", "status": "affected", "versionType": "git"}, {"version": "1804fdf6e494e5e2938c65d8391690b59bcff897", "lessThan": "17511bd84871f4a6106cb335616e086880313f3f", "status": "affected", "versionType": "git"}, {"version": "1804fdf6e494e5e2938c65d8391690b59bcff897", "lessThan": "1d80d57ffcb55488f0ec0b77928d4f82d16b6a90", "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/rfcomm/sock.c"], "versions": [{"version": "5.15", "status": "affected"}, {"version": "0", "lessThan": "5.15", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.91", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.9", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.2", "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": "5.15", "versionEndExcluding": "5.15.91"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.1.9"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/98aec50ff7f60cc6f2d6a4396b475c547e58b04d"}, {"url": "https://git.kernel.org/stable/c/17511bd84871f4a6106cb335616e086880313f3f"}, {"url": "https://git.kernel.org/stable/c/1d80d57ffcb55488f0ec0b77928d4f82d16b6a90"}], "title": "Bluetooth: Fix possible deadlock in rfcomm_sk_state_change", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-667", "lang": "en", "description": "CWE-667 Improper Locking"}]}], "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2025-10-01T17:20:21.041847Z", "id": "CVE-2023-53016", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-01T17:20:23.878Z"}}]}}

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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "21EEE3D1-0886-406D-BF6E-28331027E3AB", "versionEndExcluding": "5.15.91", "versionStartIncluding": "5.15", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "ED5B6045-B1D2-4E03-B194-9005A351BCAE", "versionEndExcluding": "6.1.9", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.2:rc1:*:*:*:*:*:*", "matchCriteriaId": "FF501633-2F44-4913-A8EE-B021929F49F6", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.2:rc2:*:*:*:*:*:*", "matchCriteriaId": "2BDA597B-CAC1-4DF0-86F0-42E142C654E9", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.2:rc3:*:*:*:*:*:*", "matchCriteriaId": "725C78C9-12CE-406F-ABE8-0813A01D66E8", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.2:rc4:*:*:*:*:*:*", "matchCriteriaId": "A127C155-689C-4F67-B146-44A57F4BFD85", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: Fix possible deadlock in rfcomm_sk_state_change\n\nsyzbot reports a possible deadlock in rfcomm_sk_state_change [1].\nWhile rfcomm_sock_connect acquires the sk lock and waits for\nthe rfcomm lock, rfcomm_sock_release could have the rfcomm\nlock and hit a deadlock for acquiring the sk lock.\nHere's a simplified flow:\n\nrfcomm_sock_connect:\n lock_sock(sk)\n rfcomm_dlc_open:\n rfcomm_lock()\n\nrfcomm_sock_release:\n rfcomm_sock_shutdown:\n rfcomm_lock()\n __rfcomm_dlc_close:\n rfcomm_k_state_change:\n\t lock_sock(sk)\n\nThis patch drops the sk lock before calling rfcomm_dlc_open to\navoid the possible deadlock and holds sk's reference count to\nprevent use-after-free after rfcomm_dlc_open completes."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: Bluetooth: Se soluciona un posible bloqueo en rfcomm_sk_state_change syzbot informa de un posible bloqueo en rfcomm_sk_state_change [1]. Mientras rfcomm_sock_connect adquiere el bloqueo sk y espera el bloqueo rfcomm, rfcomm_sock_release podr\u00eda tener el bloqueo rfcomm y llegar a un bloqueo para adquirir el bloqueo sk. Aqu\u00ed hay un flujo simplificado: rfcomm_sock_connect: lock_sock(sk) rfcomm_dlc_open: rfcomm_lock() rfcomm_sock_release: rfcomm_sock_shutdown: rfcomm_lock() __rfcomm_dlc_close: rfcomm_k_state_change: lock_sock(sk) Este parche elimina el bloqueo de sk antes de llamar a rfcomm_dlc_open para evitar el posible bloqueo y mantiene el recuento de referencia de sk para evitar el use-after-free despu\u00e9s de que se completa rfcomm_dlc_open."}], "id": "CVE-2023-53016", "lastModified": "2025-10-01T18:15:35.523", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2025-03-27T17:15:50.983", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/17511bd84871f4a6106cb335616e086880313f3f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1d80d57ffcb55488f0ec0b77928d4f82d16b6a90"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/98aec50ff7f60cc6f2d6a4396b475c547e58b04d"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}, {"lang": "en", "value": "CWE-667"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-667"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"affected_release": [{"advisory": "RHSA-2024:2394", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-427.13.1.el9_4", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-04-30T00:00:00Z"}, {"advisory": "RHSA-2024:2394", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-427.13.1.el9_4", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-04-30T00:00:00Z"}], "bugzilla": {"description": "kernel: Bluetooth: Fix possible deadlock in rfcomm_sk_state_change", "id": "2355451", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2355451"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "cwe": "CWE-667", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nBluetooth: Fix possible deadlock in rfcomm_sk_state_change\nsyzbot reports a possible deadlock in rfcomm_sk_state_change [1].\nWhile rfcomm_sock_connect acquires the sk lock and waits for\nthe rfcomm lock, rfcomm_sock_release could have the rfcomm\nlock and hit a deadlock for acquiring the sk lock.\nHere's a simplified flow:\nrfcomm_sock_connect:\nlock_sock(sk)\nrfcomm_dlc_open:\nrfcomm_lock()\nrfcomm_sock_release:\nrfcomm_sock_shutdown:\nrfcomm_lock()\n__rfcomm_dlc_close:\nrfcomm_k_state_change:\nlock_sock(sk)\nThis patch drops the sk lock before calling rfcomm_dlc_open to\navoid the possible deadlock and holds sk's reference count to\nprevent use-after-free after rfcomm_dlc_open completes."], "name": "CVE-2023-53016", "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": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-03-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-53016\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-53016\nhttps://lore.kernel.org/linux-cve-announce/2025032716-CVE-2023-53016-f30c@gregkh/T"], "threat_severity": "Moderate"}