CVE-2025-40213

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-40213", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-04-16T07:20:57.179Z", "datePublished": "2025-11-24T15:59:44.000Z", "dateUpdated": "2026-10-21T12:37:53.837Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-21T12:37:53.837Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: MGMT: fix crash in set_mesh_sync and set_mesh_complete\n\nThere is a BUG: KASAN: stack-out-of-bounds in set_mesh_sync due to\nmemcpy from badly declared on-stack flexible array.\n\nAnother crash is in set_mesh_complete() due to double list_del via\nmgmt_pending_valid + mgmt_pending_remove.\n\nUse DEFINE_FLEX to declare the flexible array right, and don't memcpy\noutside bounds.\n\nAs mgmt_pending_valid removes the cmd from list, use mgmt_pending_free,\nand also report status on error."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - The vulnerability is triggered entirely through a local AF_BLUETOOTH HCI control (mgmt) socket by sending a MGMT_OP_SET_MESH_RECEIVER command via sendmsg(); no over-the-air interaction is needed to reach or corrupt memory.\nAC:L - Both defects fire deterministically \u2014 any SET_MESH_RECEIVER with param_len > 6 causes the stack out-of-bounds read, and every successful completion hits the double list_del; the optional sock use-after-free variant is a race whose both sides (issuing the command and closing the mgmt fd) are fully attacker-controlled.\nPR:L - Requires a trusted mgmt socket (CAP_NET_ADMIN), the privilege level held by the ordinary non-root Bluetooth daemon on Linux desktops and by Android's sandboxed bluetooth process, so a compromised Bluetooth stack \u2014 itself remotely attackable \u2014 reaches this with low effective privilege.\nUI:N - The attacker issues the management command directly and no victim action, configuration change, or interaction is required.\nS:U - The out-of-bounds access, list corruption and freed-socket reuse all occur within the kernel's own security authority with no crossing of a VM, IOMMU or sandbox boundary.\nC:H - Up to 16 bytes of adjacent kernel stack are copied into the persistent hdev->mesh_ad_types filter and can be read back byte-by-byte through the mesh_device_found() advertisement-forwarding oracle, and the use-after-free on the released sock additionally exposes reclaimed slab contents.\nI:H - The second list_del writes through LIST_POISON pointers, and the premature sock_put lets mgmt_cmd_complete() write into a freed, sprayable hci_pinfo/sock object (sk_receive_queue, sk_data_ready), which is a control-flow hijack primitive rather than a bounded modification.\nA:H - The double list_del reliably oopses on poison-pointer dereference (or WARNs under CONFIG_DEBUG_LIST), the stack out-of-bounds read is a hard KASAN BUG, and the error path leaks the cmd, its parameters and a socket reference on every failure."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["include/net/bluetooth/mgmt.h", "net/bluetooth/mgmt.c"], "versions": [{"version": "0b60eb04b8524e1b4b3f07fea0d16fda9a677d9a", "lessThan": "31d6c9216aa1be18ba317239738f73b0b0c7b691", "status": "affected", "versionType": "git"}, {"version": "d71b98f253b079cbadc83266383f26fe7e9e103b", "lessThan": "5c19daa93d9af29f1f46251b47e1ea66bcc8d679", "status": "affected", "versionType": "git"}, {"version": "302a1f674c00dd5581ab8e493ef44767c5101aab", "lessThan": "1c9aca1787e8395a2c59fef20e914467958969c5", "status": "affected", "versionType": "git"}, {"version": "302a1f674c00dd5581ab8e493ef44767c5101aab", "lessThan": "e8785404de06a69d89dcdd1e9a0b6ea42dc6d327", "status": "affected", "versionType": "git"}, {"version": "87a1f16f07c6c43771754075e08f45b41d237421", "status": "affected", "versionType": "git"}, {"version": "6.6.140", "lessThan": "6.6.160", "status": "affected", "versionType": "semver"}, {"version": "6.16.10", "lessThan": "6.17", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["include/net/bluetooth/mgmt.h", "net/bluetooth/mgmt.c"], "versions": [{"version": "6.17", "status": "affected"}, {"version": "0", "lessThan": "6.17", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.160", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.17.8", "lessThanOrEqual": "6.17.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18", "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": "6.6.140", "versionEndExcluding": "6.6.160"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17", "versionEndExcluding": "6.17.8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17", "versionEndExcluding": "6.18"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.16.10"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/31d6c9216aa1be18ba317239738f73b0b0c7b691"}, {"url": "https://git.kernel.org/stable/c/5c19daa93d9af29f1f46251b47e1ea66bcc8d679"}, {"url": "https://git.kernel.org/stable/c/1c9aca1787e8395a2c59fef20e914467958969c5"}, {"url": "https://git.kernel.org/stable/c/e8785404de06a69d89dcdd1e9a0b6ea42dc6d327"}], "title": "Bluetooth: MGMT: fix crash in set_mesh_sync and set_mesh_complete", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["include/net/bluetooth/mgmt.h", "net/bluetooth/mgmt.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "31d6c9216aa1be18ba317239738f73b0b0c7b691", "status": "affected", "version": "0b60eb04b8524e1b4b3f07fea0d16fda9a677d9a", "versionType": "git"}, {"lessThan": "5c19daa93d9af29f1f46251b47e1ea66bcc8d679", "status": "affected", "version": "d71b98f253b079cbadc83266383f26fe7e9e103b", "versionType": "git"}, {"lessThan": "1c9aca1787e8395a2c59fef20e914467958969c5", "status": "affected", "version": "302a1f674c00dd5581ab8e493ef44767c5101aab", "versionType": "git"}, {"lessThan": "e8785404de06a69d89dcdd1e9a0b6ea42dc6d327", "status": "affected", "version": "302a1f674c00dd5581ab8e493ef44767c5101aab", "versionType": "git"}, {"status": "affected", "version": "87a1f16f07c6c43771754075e08f45b41d237421", "versionType": "git"}, {"lessThan": "6.6.160", "status": "affected", "version": "6.6.140", "versionType": "semver"}, {"lessThan": "6.17", "status": "affected", "version": "6.16.10", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["include/net/bluetooth/mgmt.h", "net/bluetooth/mgmt.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.17"}, {"lessThan": "6.17", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.160", "versionType": "semver"}, {"lessThanOrEqual": "6.17.*", "status": "unaffected", "version": "6.17.8", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.18", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: MGMT: fix crash in set_mesh_sync and set_mesh_complete\n\nThere is a BUG: KASAN: stack-out-of-bounds in set_mesh_sync due to\nmemcpy from badly declared on-stack flexible array.\n\nAnother crash is in set_mesh_complete() due to double list_del via\nmgmt_pending_valid + mgmt_pending_remove.\n\nUse DEFINE_FLEX to declare the flexible array right, and don't memcpy\noutside bounds.\n\nAs mgmt_pending_valid removes the cmd from list, use mgmt_pending_free,\nand also report status on error."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nBluetooth: MGMT: soluciona un fallo en set_mesh_sync y set_mesh_complete\n\nExiste un BUG: KASAN: stack-out-of-bounds en set_mesh_sync debido a memcpy desde un array flexible en la pila mal declarado.\n\nOtro fallo ocurre en set_mesh_complete() debido a un doble list_del a trav\u00e9s de mgmt_pending_valid + mgmt_pending_remove.\n\nUsa DEFINE_FLEX para declarar correctamente el array flexible, y no hagas memcpy fuera de los l\u00edmites.\n\nComo mgmt_pending_valid elimina el cmd de la lista, usa mgmt_pending_free, y tambi\u00e9n informa el estado en caso de error."}], "id": "CVE-2025-40213", "lastModified": "2026-10-21T13:18:19.787", "metrics": {"cvssMetricV31": [{"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": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}]}, "published": "2025-11-24T16:15:49.150", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1c9aca1787e8395a2c59fef20e914467958969c5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/31d6c9216aa1be18ba317239738f73b0b0c7b691"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5c19daa93d9af29f1f46251b47e1ea66bcc8d679"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e8785404de06a69d89dcdd1e9a0b6ea42dc6d327"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Deferred"}

{"bugzilla": {"description": "kernel: Bluetooth: MGMT: fix crash in set_mesh_sync and set_mesh_complete", "id": "2416793", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2416793"}, "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": "draft"}, "details": ["No description is available for this CVE."], "name": "CVE-2025-40213", "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": "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-11-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-40213\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-40213\nhttps://lore.kernel.org/linux-cve-announce/2025112447-CVE-2025-40213-c55f@gregkh/T"], "threat_severity": "Moderate"}

{}