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GitWeb","url":"https://github.com/LineageOS/android_hardware_st_nfc/commit/1a2bb984bfe68fe5f1d26f3b3ef0577b381750a1"}]}],"author":{"name":"Kyle Hsiao","email":"kylehsiao@google.com","date":"2025-10-01 11:57:54.000000000","tz":0},"committer":{"name":"MSe1969","email":"mse1969@posteo.de","date":"2026-03-05 20:25:19.000000000","tz":0},"subject":"[NFC] Fix use-after-free in eventCallback","message":"[NFC] Fix use-after-free in eventCallback\n\nTransform access to the static shared pointer \u0027Nfc::mCallback\u0027 to be thread-safe to prevent a use-after-free crash.\n\nThe use-after-free occurred when an asynchronous thread (eventCallback) attempted to call a method on \u0027mCallback\u0027 immediately after the main thread Nfc::open had destroyed the underlying object. The simple null check was insufficient due to the race condition.\n\nThis fix implements the correct shared pointer synchronization pattern:\n1. Protects the read/write of \u0027mCallback\u0027 using \u0027mCallbackLock\u0027.\n2. Creates a local \u0027std::shared_ptr\u003cINfcClientCallback\u003e localCallback\u0027 inside the critical section. This local copy holds a temporary strong reference, guaranteeing the object\u0027s lifetime for the duration of the subsequent sendEvent() call.\n\nBug: 392699284\nTest: nfc_service_fuzzer\nTest: atest NfcNciUnitTests\nTest: atest CtsNfcTestCases\nTest: atest VtsAidlHalNfcTargetTest\nTest: atest NfcTestCases\nTest: atest NfcServiceTest\n(cherry picked from commit fc619c3348188ff0020cdeb7d4c4728a0246fe1a)\nCherrypick-From: https://googleplex-android-review.googlesource.com/q/commit:dac35481263659a257a88d36e71ca23157a9f310\nMerged-In: I8e9e83be7f939bbfc183cb3879808ceacf931450\nChange-Id: I8e9e83be7f939bbfc183cb3879808ceacf931450\n","web_links":[{"name":"GitHub","tooltip":"Open in GitWeb","url":"https://github.com/LineageOS/android_hardware_st_nfc/commit/fbe0d1661ee7539bcdd199866b7f705fca15fbca"}],"resolve_conflicts_web_links":[{"name":"GitHub","tooltip":"Open in GitWeb","url":"https://github.com/LineageOS/android_hardware_st_nfc/commit/fbe0d1661ee7539bcdd199866b7f705fca15fbca"}]},"branch":"refs/heads/lineage-20.0"}},"requirements":[],"submit_records":[{"rule_name":"gerrit~DefaultSubmitRule","status":"CLOSED","labels":[{"label":"Verified","status":"OK","applied_by":{"_account_id":17656,"name":"Markus S","email":"mse1969@posteo.de","username":"mse1969","avatars":[{"url":"https://www.gravatar.com/avatar/faf0a883d71780207ed87e774bfbaff0.jpg?d\u003didenticon\u0026r\u003dpg\u0026s\u003d32","height":32},{"url":"https://www.gravatar.com/avatar/faf0a883d71780207ed87e774bfbaff0.jpg?d\u003didenticon\u0026r\u003dpg\u0026s\u003d56","height":56},{"url":"https://www.gravatar.com/avatar/faf0a883d71780207ed87e774bfbaff0.jpg?d\u003didenticon\u0026r\u003dpg\u0026s\u003d100","height":100},{"url":"https://www.gravatar.com/avatar/faf0a883d71780207ed87e774bfbaff0.jpg?d\u003didenticon\u0026r\u003dpg\u0026s\u003d120","height":120}]}},{"label":"Code-Review","status":"OK","applied_by":{"_account_id":16185,"name":"Nolen Johnson","email":"johnsonnolen@gmail.com","username":"njohnson","avatars":[{"url":"https://www.gravatar.com/avatar/35fbec921061bf203f1189ddc1cb9697.jpg?d\u003didenticon\u0026r\u003dpg\u0026s\u003d32","height":32},{"url":"https://www.gravatar.com/avatar/35fbec921061bf203f1189ddc1cb9697.jpg?d\u003didenticon\u0026r\u003dpg\u0026s\u003d56","height":56},{"url":"https://www.gravatar.com/avatar/35fbec921061bf203f1189ddc1cb9697.jpg?d\u003didenticon\u0026r\u003dpg\u0026s\u003d100","height":100},{"url":"https://www.gravatar.com/avatar/35fbec921061bf203f1189ddc1cb9697.jpg?d\u003didenticon\u0026r\u003dpg\u0026s\u003d120","height":120}]}},{"label":"CI","status":"MAY"}]}],"submit_requirements":[{"name":"CI","description":"Prevent submit if CI failed.","status":"SATISFIED","is_legacy":false,"submittability_expression_result":{"expression":"-label:CI\u003dMIN","fulfilled":true,"status":"PASS","passing_atoms":[],"failing_atoms":["label:CI\u003dMIN"],"atom_explanations":{"label:CI\u003dMIN":""}}},{"name":"Verified","status":"SATISFIED","is_legacy":true,"submittability_expression_result":{"expression":"label:Verified\u003dMAX -label:Verified\u003dMIN","fulfilled":true,"status":"PASS","passing_atoms":["label:Verified\u003dMAX","-label:Verified\u003dMIN"],"failing_atoms":[],"atom_explanations":{}}},{"name":"Code-Review","status":"SATISFIED","is_legacy":true,"submittability_expression_result":{"expression":"label:Code-Review\u003dMAX -label:Code-Review\u003dMIN","fulfilled":true,"status":"PASS","passing_atoms":["label:Code-Review\u003dMAX","-label:Code-Review\u003dMIN"],"failing_atoms":[],"atom_explanations":{}}}]}