CVE-2024-50124

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Bluetooth radio proximity is required, matching the Adjacent classification.\nAC:L - The attacker controls both sides of the race: `SO_SNDTIMEO` sets `sk->sk_sndtimeo`, which `iso_connect_cis()`/`iso_connect_bis()` pass verbatim to `iso_sock_set_timer()`, so the timeout work can be scheduled to fire at an arbitrarily chosen moment and raced against `close()`, and `iso_sock_clear_timer()` uses non-sync `cancel_delayed_work()` so an in-flight work item is never waited for. The sequence is freely repeatable until it wins.\nPR:L - There is no `capable()` or `CAP_NET_*` check anywhere in `bt_sock_create()`, `iso_sock_create()`, `iso_sock_bind()`, `iso_sock_listen()` or `iso_sock_connect()`, so any unprivileged local user can create BTPROTO_ISO sockets and drive the connect/close sequence that frees the socket. Only basic local account access is needed, not root.\nUI:N - The whole sequence \u2014 socket creation, `SO_SNDTIMEO`, connect/listen, close \u2014 is performed by the attacker's own process against the system Bluetooth adapter. No victim action is required.\nS:U - The use-after-free corrupts kernel heap memory within the same kernel security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - `iso_proto` is registered with `proto_register(&iso_proto, 0)`, so `struct iso_pinfo` is allocated from the generic kmalloc caches; the attacker can respray the freed object and read its contents back through subsequent socket operations, giving a path to arbitrary kernel memory disclosure.\nI:H - The stale pointer is written through \u2014 `sock_hold()` performs an atomic increment on freed memory and `sk->sk_err = ETIMEDOUT` writes into it \u2014 and `sk->sk_state_change(sk)` performs an indirect call through a function pointer read from the freed object, providing a control-flow hijack primitive.\nA:H - Even without successful exploitation the UAF produces a KASAN splat, oops, or panic inside `iso_sock_timeout()` running on the system workqueue, and it can be triggered repeatedly by an unprivileged process."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/bluetooth/iso.c"], "versions": [{"version": "ccf74f2390d60a2f9a75ef496d2564abb478f46a", "lessThan": "876ac72d535fa94f4ac57bba651987c6f990f646", "status": "affected", "versionType": "git"}, {"version": "ccf74f2390d60a2f9a75ef496d2564abb478f46a", "lessThan": "14bcb721d241e62fdd18f6f434a2ed2ab6e71a9b", "status": "affected", "versionType": "git"}, {"version": "ccf74f2390d60a2f9a75ef496d2564abb478f46a", "lessThan": "d75aad1d3143ca68cda52ff80ac392e1bbd84325", "status": "affected", "versionType": "git"}, {"version": "ccf74f2390d60a2f9a75ef496d2564abb478f46a", "lessThan": "246b435ad668596aa0e2bbb9d491b6413861211a", "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/iso.c"], "versions": [{"version": "6.0", "status": "affected"}, {"version": "0", "lessThan": "6.0", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.115", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.59", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.11.6", "lessThanOrEqual": "6.11.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12", "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": "6.1.115"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.6.59"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.11.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.12"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/876ac72d535fa94f4ac57bba651987c6f990f646"}, {"url": "https://git.kernel.org/stable/c/14bcb721d241e62fdd18f6f434a2ed2ab6e71a9b"}, {"url": "https://git.kernel.org/stable/c/d75aad1d3143ca68cda52ff80ac392e1bbd84325"}, {"url": "https://git.kernel.org/stable/c/246b435ad668596aa0e2bbb9d491b6413861211a"}], "title": "Bluetooth: ISO: Fix UAF on iso_sock_timeout", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2024-50124", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2024-12-11T14:25:58.935460Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-416", "description": "CWE-416 Use After Free"}]}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-12-11T14:58:33.796Z"}}, {"title": "CVE Program Container", "references": [{"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T22:25:43.040Z"}}]}}

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Bluetooth radio proximity is required, matching the Adjacent classification.\nAC:L - The attacker controls both sides of the race: `SO_SNDTIMEO` sets `sk->sk_sndtimeo`, which `iso_connect_cis()`/`iso_connect_bis()` pass verbatim to `iso_sock_set_timer()`, so the timeout work can be scheduled to fire at an arbitrarily chosen moment and raced against `close()`, and `iso_sock_clear_timer()` uses non-sync `cancel_delayed_work()` so an in-flight work item is never waited for. The sequence is freely repeatable until it wins.\nPR:L - There is no `capable()` or `CAP_NET_*` check anywhere in `bt_sock_create()`, `iso_sock_create()`, `iso_sock_bind()`, `iso_sock_listen()` or `iso_sock_connect()`, so any unprivileged local user can create BTPROTO_ISO sockets and drive the connect/close sequence that frees the socket. Only basic local account access is needed, not root.\nUI:N - The whole sequence \u2014 socket creation, `SO_SNDTIMEO`, connect/listen, close \u2014 is performed by the attacker's own process against the system Bluetooth adapter. No victim action is required.\nS:U - The use-after-free corrupts kernel heap memory within the same kernel security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - `iso_proto` is registered with `proto_register(&iso_proto, 0)`, so `struct iso_pinfo` is allocated from the generic kmalloc caches; the attacker can respray the freed object and read its contents back through subsequent socket operations, giving a path to arbitrary kernel memory disclosure.\nI:H - The stale pointer is written through \u2014 `sock_hold()` performs an atomic increment on freed memory and `sk->sk_err = ETIMEDOUT` writes into it \u2014 and `sk->sk_state_change(sk)` performs an indirect call through a function pointer read from the freed object, providing a control-flow hijack primitive.\nA:H - Even without successful exploitation the UAF produces a KASAN splat, oops, or panic inside `iso_sock_timeout()` running on the system workqueue, and it can be triggered repeatedly by an unprivileged process."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "ccf74f2390d60a2f9a75ef496d2564abb478f46a", "lessThan": "876ac72d535fa94f4ac57bba651987c6f990f646", "versionType": "git"}, {"status": "affected", "version": "ccf74f2390d60a2f9a75ef496d2564abb478f46a", "lessThan": "14bcb721d241e62fdd18f6f434a2ed2ab6e71a9b", "versionType": "git"}, {"status": "affected", "version": "ccf74f2390d60a2f9a75ef496d2564abb478f46a", "lessThan": "d75aad1d3143ca68cda52ff80ac392e1bbd84325", "versionType": "git"}, {"status": "affected", "version": "ccf74f2390d60a2f9a75ef496d2564abb478f46a", "lessThan": "246b435ad668596aa0e2bbb9d491b6413861211a", "versionType": "git"}], "programFiles": ["net/bluetooth/iso.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.0"}, {"status": "unaffected", "version": "0", "lessThan": "6.0", "versionType": "semver"}, {"status": "unaffected", "version": "6.1.115", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.59", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.11.6", "versionType": "semver", "lessThanOrEqual": "6.11.*"}, {"status": "unaffected", "version": "6.12", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["net/bluetooth/iso.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/876ac72d535fa94f4ac57bba651987c6f990f646"}, {"url": "https://git.kernel.org/stable/c/14bcb721d241e62fdd18f6f434a2ed2ab6e71a9b"}, {"url": "https://git.kernel.org/stable/c/d75aad1d3143ca68cda52ff80ac392e1bbd84325"}, {"url": "https://git.kernel.org/stable/c/246b435ad668596aa0e2bbb9d491b6413861211a"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: ISO: Fix UAF on iso_sock_timeout\n\nconn->sk maybe have been unlinked/freed while waiting for iso_conn_lock\nso this checks if the conn->sk is still valid by checking if it part of\niso_sk_list."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.115", "versionStartIncluding": "6.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.59", "versionStartIncluding": "6.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.11.6", "versionStartIncluding": "6.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.12", "versionStartIncluding": "6.0"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:41:49.895Z"}}}, "cveMetadata": {"cveId": "CVE-2024-50124", "state": "PUBLISHED", "dateUpdated": "2026-08-05T11:41:49.895Z", "dateReserved": "2024-10-21T19:36:19.954Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-11-05T17:10:52.434Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

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"operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: ISO: Fix UAF on iso_sock_timeout\n\nconn->sk maybe have been unlinked/freed while waiting for iso_conn_lock\nso this checks if the conn->sk is still valid by checking if it part of\niso_sk_list."}, {"lang": "es", "value": " En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: Bluetooth: ISO: Se corrigi\u00f3 que UAF en iso_sock_timeout conn->sk pudiera haberse desvinculado/liberado mientras se esperaba a iso_conn_lock, por lo que esto verifica si conn->sk a\u00fan es v\u00e1lido verificando si es parte de iso_sk_list."}], "id": "CVE-2024-50124", "lastModified": "2026-08-04T11:21:22.343", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.0, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.1, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-50124", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2024-12-11T14:25:58.935460Z", "version": "2.0.3"}}]}, "published": "2024-11-05T18:15:15.487", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/14bcb721d241e62fdd18f6f434a2ed2ab6e71a9b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/246b435ad668596aa0e2bbb9d491b6413861211a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/876ac72d535fa94f4ac57bba651987c6f990f646"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d75aad1d3143ca68cda52ff80ac392e1bbd84325"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-416"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"affected_release": [{"advisory": "RHSA-2024:11486", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-503.19.1.el9_5", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-12-19T00:00:00Z"}, {"advisory": "RHSA-2024:11486", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-503.19.1.el9_5", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-12-19T00:00:00Z"}], "bugzilla": {"description": "kernel: Bluetooth: ISO: Fix UAF on iso_sock_timeout", "id": "2323944", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2323944"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.7", "cvss3_scoring_vector": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "cwe": "CWE-416", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nBluetooth: ISO: Fix UAF on iso_sock_timeout\nconn->sk maybe have been unlinked/freed while waiting for iso_conn_lock\nso this checks if the conn->sk is still valid by checking if it part of\niso_sk_list."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}, "name": "CVE-2024-50124", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "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": "Will not fix", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-11-05T17:10:52Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-50124\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-50124\nhttps://git.kernel.org/stable/c/14bcb721d241e62fdd18f6f434a2ed2ab6e71a9b\nhttps://git.kernel.org/stable/c/246b435ad668596aa0e2bbb9d491b6413861211a\nhttps://git.kernel.org/stable/c/876ac72d535fa94f4ac57bba651987c6f990f646\nhttps://git.kernel.org/stable/c/d75aad1d3143ca68cda52ff80ac392e1bbd84325"], "threat_severity": "Moderate"}

{}