{"api_version":"1","generated_at":"2026-07-23T14:52:28+00:00","cve":"CVE-2026-64010","urls":{"html":"https://cve.report/CVE-2026-64010","api":"https://cve.report/api/cve/CVE-2026-64010.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-64010","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-64010"},"summary":{"title":"nfc: llcp: Fix use-after-free race in nfc_llcp_recv_cc()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: llcp: Fix use-after-free race in nfc_llcp_recv_cc()\n\nA race condition exists in the NFC LLCP connection state machine where\nthe connection acceptance packet (CC) can be processed concurrently with\nsocket release.  This can lead to a use-after-free of the socket object.\n\nWhen nfc_llcp_recv_cc() moves the socket from the connecting_sockets\nlist to the sockets list, it does so without holding the socket lock.\nIf llcp_sock_release() is executing concurrently, it might have already\nunlinked the socket and dropped its references, which can result in\nnfc_llcp_recv_cc() linking a freed socket into the live list.\n\nFix this by holding lock_sock() during the state transition and list\nmovement in nfc_llcp_recv_cc().  After acquiring the lock, check if\nthe socket is still hashed to ensure it hasn't already been unlinked\nand marked for destruction by the release path.  This aligns the locking\npattern with recv_hdlc() and recv_disc().","state":"PUBLISHED","assigner":"Linux","published_at":"2026-07-19 16:17:40","updated_at":"2026-07-20 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the Linux kernel, the following vulnerability has been resolved:\n\nnfc: llcp: Fix use-after-free race in nfc_llcp_recv_cc()\n\nA race condition exists in the NFC LLCP connection state machine where\nthe connection acceptance packet (CC) can be processed concurrently with\nsocket release.  This can lead to a use-after-free of the socket object.\n\nWhen nfc_llcp_recv_cc() moves the socket from the connecting_sockets\nlist to the sockets list, it does so without holding the socket lock.\nIf llcp_sock_release() is executing concurrently, it might have already\nunlinked the socket and dropped its references, which can result in\nnfc_llcp_recv_cc() linking a freed socket into the live list.\n\nFix this by holding lock_sock() during the state transition and list\nmovement in nfc_llcp_recv_cc().  After acquiring the lock, check if\nthe socket is still hashed to ensure it hasn't already been unlinked\nand marked for destruction by the release path.  This aligns the locking\npattern with recv_hdlc() and recv_disc()."}],"metrics":[{"cvssV3_1":{"baseScore":8.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"providerMetadata":{"dateUpdated":"2026-07-20T13:42:20.923Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/dce85215a6c7b0fd753f577a4c487f647119884c"},{"url":"https://git.kernel.org/stable/c/bd08bb7443c501d2f2a71d529e4afcf11c9b07d2"},{"url":"https://git.kernel.org/stable/c/0b45c31746e1523d5d482fda8fcf54a35ac417f1"},{"url":"https://git.kernel.org/stable/c/ee2d1a8a1833c5e56e9a1745e64b0b4edda732c2"},{"url":"https://git.kernel.org/stable/c/ad8a27d63cac96bac441edd002209ebd996e12fb"},{"url":"https://git.kernel.org/stable/c/650bdd8fdfab64a09ee474150313dbc48c374795"},{"url":"https://git.kernel.org/stable/c/b2a60f7f846faaf5c2cdad4ea6d3a33e5f863183"},{"url":"https://git.kernel.org/stable/c/b493ea2765cc17cb8aa7e7544a4b6dcb05b6ed77"}],"title":"nfc: llcp: Fix use-after-free race in nfc_llcp_recv_cc()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-64010","datePublished":"2026-07-19T14:56:25.162Z","dateReserved":"2026-07-19T07:54:57.026Z","dateUpdated":"2026-07-20T13:42:20.923Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-19 16:17:40","lastModifiedDate":"2026-07-20 15:17:02","problem_types":[],"metrics":{"cvssMetricV31":[{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":8.8,"baseSeverity":"HIGH","attackVector":"ADJACENT_NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":5.9}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"64010","Ordinal":"1","Title":"nfc: llcp: Fix use-after-free race in nfc_llcp_recv_cc()","CVE":"CVE-2026-64010","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"64010","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: llcp: Fix use-after-free race in nfc_llcp_recv_cc()\n\nA race condition exists in the NFC LLCP connection state machine where\nthe connection acceptance packet (CC) can be processed concurrently with\nsocket release.  This can lead to a use-after-free of the socket object.\n\nWhen nfc_llcp_recv_cc() moves the socket from the connecting_sockets\nlist to the sockets list, it does so without holding the socket lock.\nIf llcp_sock_release() is executing concurrently, it might have already\nunlinked the socket and dropped its references, which can result in\nnfc_llcp_recv_cc() linking a freed socket into the live list.\n\nFix this by holding lock_sock() during the state transition and list\nmovement in nfc_llcp_recv_cc().  After acquiring the lock, check if\nthe socket is still hashed to ensure it hasn't already been unlinked\nand marked for destruction by the release path.  This aligns the locking\npattern with recv_hdlc() and recv_disc().","Type":"Description","Title":"nfc: llcp: Fix use-after-free race in nfc_llcp_recv_cc()"}]}}}