{"id":5909,"date":"2023-04-07T17:17:50","date_gmt":"2023-04-07T08:32:50","guid":{"rendered":"https:\/\/www.inforsec.org\/wp\/?p=5909"},"modified":"2023-04-07T17:20:32","modified_gmt":"2023-04-07T08:35:32","slug":"%e3%80%90sp-2022-%e8%ae%ba%e6%96%87%e5%88%86%e4%ba%ab%e3%80%91%e7%a8%bb%e8%8d%89%e6%94%bb%e5%87%bb%ef%bc%9a%e5%8e%8b%e6%ad%bb%e5%ae%89%e5%8d%93%e7%b3%bb%e7%bb%9f%e7%9a%84%e6%9c%80%e5%90%8e%e4%b8%80","status":"publish","type":"post","link":"http:\/\/202.112.238.40\/wp\/?p=5909","title":{"rendered":"\u3010S&#038;P 2022 \u8bba\u6587\u5206\u4eab\u3011\u7a3b\u8349\u653b\u51fb\uff1a\u538b\u6b7b\u5b89\u5353\u7cfb\u7edf\u7684\u6700\u540e\u4e00\u6839\u7a3b\u8349"},"content":{"rendered":"\n<p style=\"text-align:center\" class=\"has-text-color has-medium-font-size has-vivid-cyan-blue-color wp-block-paragraph\"><strong>\u524d\u8a00<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u672c\u6587\u6839\u636e\u82f1\u6587\u539f\u6587\u201cExploit the Last Straw That Breaks Android Systems\u201d\u6574\u7406\u64b0\u5199\u3002\u539f\u6587\u53d1\u8868\u5728IEEE Symposium on Security and Privacy. 2022\u3002\u4f5c\u8005\u5728\u5b8c\u6210\u82f1\u6587\u539f\u6587\u5de5\u4f5c\u65f6\uff0c\u4e3a\u590d\u65e6\u5927\u5b66\u5728\u8bfb\u535a\u58eb\u751f\u3002\u672c\u6587\u8f83\u539f\u6587\u6709\u6240\u5220\u51cf\uff0c\u8be6\u7ec6\u5185\u5bb9\u53ef\u53c2\u8003\u539f\u6587 \u3002<\/p>\n\n\n\n<p style=\"text-align:center\" class=\"has-text-color has-medium-font-size has-vivid-cyan-blue-color wp-block-paragraph\">01<strong>\u4ecb\u7ecd<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5b89\u5353\u7cfb\u7edf\u670d\u52a1\u5728\u7cfb\u7edf\u6267\u884c\u5f88\u591a\u91cd\u8981\u4efb\u52a1\u65f6\u90fd\u626e\u6f14\u7740\u5173\u952e\u89d2\u8272\uff0c\u7279\u522b\u662f\u7528\u4e8e\u5b58\u50a8\u7528\u6237\u548c\u7cfb\u7edf\u6570\u636e\u3002\u4f8b\u5982\uff0c\u7cfb\u7edf\u670d\u52a1\u201cAccountManagerService\u201d\u53ef\u4ee5\u5e2e\u52a9\u5e94\u7528\u7a0b\u5e8f\u4fdd\u5b58\u7528\u6237\u5e10\u6237\u4fe1\u606f\uff0c\u65b9\u4fbf\u7528\u6237\u5728\u6253\u5f00\u5e94\u7528\u7a0b\u5e8f\u65f6\u907f\u514d\u91cd\u590d\u767b\u5f55\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd1\u5e74\u6765\uff0c\u5b89\u5353\u7cfb\u7edf\u670d\u52a1\u7684\u5b89\u5168\u6027\u53d7\u5230\u8d8a\u6765\u8d8a\u591a\u7684\u5173\u6ce8\u3002\u7136\u800c\uff0c\u76f4\u5230\u73b0\u5728\uff0c\u5b83\u4eec\u7684\u6570\u636e\u5b58\u50a8\u8fc7\u7a0b\u5f88\u5c11\u88ab\u7406\u89e3\u548c\u5206\u6790\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u9996\u6b21\u5bf9\u5b89\u5353\u7cfb\u7edf\u670d\u52a1\u7684\u6570\u636e\u5b58\u50a8\u8fc7\u7a0b\u8fdb\u884c\u4e86\u7cfb\u7edf\u6027\u7684\u5b89\u5168\u5206\u6790\u3002\u5e76\u53d1\u73b0\u4e86\u51e0\u79cd\u4e0d\u540c\u7c7b\u578b\u7684\u5173\u952e\u6570\u636e\u5b58\u50a8\u64cd\u4f5c\u548c\u6307\u4ee4\uff0c\u5b83\u4eec\u7ecf\u5e38\u88ab\u4f7f\u7528\uff0c\u4f46\u5728\u7cfb\u7edf\u670d\u52a1\u5185\u90e8\u5374\u6ca1\u6709\u5f97\u5230\u4fdd\u62a4\u3002\u5177\u4f53\u6765\u8bf4\uff0c\u8bb8\u591a\u5173\u952e\u6570\u636e\u5b58\u50a8\u6307\u4ee4\u901a\u8fc7\u516c\u5f00\u7684\u7cfb\u7edf\u670d\u52a1\u63a5\u53e3\u66b4\u9732\u7ed9\u4e0d\u53ef\u4fe1\u7684\u7b2c\u4e09\u65b9\u5e94\u7528\u7a0b\u5e8f\u3002\u6076\u610f\u7684\u7b2c\u4e09\u65b9\u5e94\u7528\u7a0b\u5e8f\u53ef\u4ee5\u5411\u76ee\u6807\u7cfb\u7edf\u670d\u52a1\u53d1\u9001\u7cbe\u5fc3\u6784\u9020\u7684\u6d88\u606f\uff0c\u8bbf\u95ee\u5176\u6570\u636e\u5b58\u50a8\u6307\u4ee4\uff0c\u5e76\u5c06\u5783\u573e\u6570\u636e\u6ce8\u5165\u76f8\u5e94\u7684\u5185\u5b58\u5bf9\u8c61\u3002\u968f\u7740\u653b\u51fb\u7684\u4e0d\u65ad\u7d2f\u79ef\uff08\u91cd\u590d\u591a\u6b21\u8bbf\u95ee\uff09\uff0c\u6240\u6709\u5185\u5b58\u8d44\u6e90\uff08\u4f8b\u5982\uff0c\u5806\u5185\u5b58\uff09\u5c06\u4f1a\u88ab\u8017\u5c3d\u3002\u6700\u7ec8\uff0c\u8fd9\u79cd\u653b\u51fb\u5c06\u5bfc\u81f4\u53d7\u5bb3\u7684\u7cfb\u7edf\u670d\u52a1\u5d29\u6e83\uff0c\u5e76\u8fdb\u4e00\u6b65\u5bfc\u81f4\u5b89\u5353\u7cfb\u7edf\u5d29\u6e83\uff08\u5373\u91cd\u65b0\u542f\u52a8\uff09\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6b64\u5916\uff0c\u6211\u4eec\u53d1\u73b0\u67d0\u4e9bDoS\uff08\u62d2\u7edd\u670d\u52a1\uff09\u653b\u51fb\u4f1a\u5bfc\u81f4\u6c38\u4e45\u6027\u7684\u5f71\u54cd\u3002\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u8bbe\u5907\u53d7\u5230\u653b\u51fb\u540e\u5c06\u65e0\u6cd5\u901a\u8fc7\u91cd\u65b0\u542f\u52a8\u6062\u590d\u6b63\u5e38\u3002\u5728\u56fe1\u7684\u4f8b\u5b50\u4e2d\uff0c\u201cAccountManagerService\u201d\u7cfb\u7edf\u670d\u52a1\u5141\u8bb8\u5e94\u7528\u7a0b\u5e8f\u4f7f\u7528\u5176\u516c\u5f00\u63a5\u53e3\u201caddAccountExplicit()\u201d\u4fdd\u5b58\u5e10\u6237\u4fe1\u606f\u3002\u7136\u800c\uff0c\u5728\u63a5\u53e3\u5185\u90e8\u5b9e\u73b0\u4e2d\uff0c\u6570\u636e\u5b58\u50a8\u64cd\u4f5c\u201cdb.insert()\u201d\u88ab\u66b4\u9732\uff0c\u5b83\u5c06\u8f93\u5165\u7684\u8d26\u6237\u4fe1\u606f\u6dfb\u52a0\u5230\u6570\u636e\u5e93\u4e2d\u5e76\u6c38\u4e45\u6027\u4fdd\u5b58\u3002\u867d\u7136\u7cfb\u7edf\u670d\u52a1\u4f1a\u9a8c\u8bc1\u6240\u5b58\u50a8\u7684\u5e10\u6237\u662f\u5426\u5c5e\u4e8e\u53d1\u8d77\u8bf7\u6c42\u7684\u5e94\u7528\u7a0b\u5e8f\uff0c\u4f46\u5b83\u5e76\u4e0d\u9650\u5236\u5e94\u7528\u7a0b\u5e8f\u53ef\u4ee5\u5b58\u50a8\u7684\u5e10\u6237\u6570\u91cf\u3002\u56e0\u6b64\uff0c\u6076\u610f\u5e94\u7528\u7a0b\u5e8f\u53ef\u4ee5\u901a\u8fc7\u591a\u6b21\u8bf7\u6c42\u8be5\u670d\u52a1\u6765\u5b58\u50a8\u5927\u91cf\u7684\u5e10\u6237\u4fe1\u606f\uff0c\u6700\u7ec8\u5bfc\u81f4\u5e10\u6237\u6570\u636e\u5e93\u7684\u5927\u5c0f\uff08\u901a\u5e38\u4f1a\u88ab\u52a0\u8f7d\u5230\u5185\u5b58\u4e2d\uff09\u8d85\u8fc7\u7cfb\u7edf\u670d\u52a1\u7684\u5185\u5b58\u4e0a\u9650\uff08\u4f8b\u5982\uff0c\u5728Pixel 3XL\u8bbe\u5907\u4e2d\u7cfb\u7edf\u670d\u52a1\u8fdb\u7a0b\u7684\u5806\u5185\u5b58\u9650\u5236\u4e3a512MB\uff09\uff0c\u7cfb\u7edf\u670d\u52a1\u8fdb\u7a0b\u5d29\u6e83\uff0c\u5bfc\u81f4\u6574\u4e2a\u7cfb\u7edf\u91cd\u65b0\u542f\u52a8\u3002\u66f4\u7cdf\u7cd5\u7684\u662f\uff0c\u6bcf\u6b21\u91cd\u65b0\u542f\u52a8\u5b89\u5353\u7cfb\u7edf\u65f6\uff0c\u90fd\u9700\u8981\u542f\u52a8\u8be5\u5173\u952e\u7cfb\u7edf\u670d\u52a1\uff0c\u5e76\u5c06\u5e10\u6237\u6570\u636e\u5e93\u4e2d\u7684\u5185\u5bb9\u52a0\u8f7d\u5230\u5185\u5b58\u4e2d\u3002\u7531\u4e8e\u6570\u636e\u5e93\u8fc7\u5927\uff0c\u8be5\u670d\u52a1\u5f88\u5feb\u5c31\u4f1a\u5360\u7528\u8fc7\u591a\u7684\u5185\u5b58\u5e76\u88ab\u5173\u95ed\u3002\u56e0\u6b64\uff0c\u5b89\u5353\u7cfb\u7edf\u5c06\u4f1a\u9677\u5165\u65e0\u4f11\u6b62\u7684\u91cd\u542f\u548c\u5d29\u6e83\u5faa\u73af\uff0c\u5bfc\u81f4\u6301\u4e45\u6027DoS\u653b\u51fb\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u540c\u65f6\uff0c\u6211\u4eec\u8fd8\u53d1\u73b0\u8bb8\u591a\u653b\u51fb\u76ee\u6807\uff08\u5373\u66b4\u9732\u7684\u6570\u636e\u5b58\u50a8\u6307\u4ee4\uff09\u5e76\u4e0d\u4ec5\u4ec5\u4e0e\u4fdd\u5b58\u7528\u6237\u6216\u5e94\u7528\u7a0b\u5e8f\u4fe1\u606f\uff08\u5982\u5e10\u6237\u4fe1\u606f\uff09\u76f8\u5173\u3002\u4f8b\u5982\uff0c\u7a97\u53e3\u7cfb\u7edf\u670d\u52a1\u201cWindowsManagerService\u201d\u4f1a\u521b\u5efa\u4e00\u4e2a\u7a97\u53e3\u4f1a\u8bdd\u4ee5\u6355\u83b7\u5f53\u524d\u5c4f\u5e55\u4e0a\u7684\u7528\u6237\u64cd\u4f5c\uff0c\u8fd9\u4e2a\u7a97\u53e3\u4f1a\u8bdd\u5b58\u50a8\u5728\u5bb9\u5668\u4e2d\uff0c\u4e5f\u4f1a\u53d7\u5230\u653b\u51fb\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"791\" height=\"479\" src=\"https:\/\/www.inforsec.org\/wp\/wp-content\/uploads\/2023\/04\/57.png\" alt=\"\" class=\"wp-image-5910\" srcset=\"http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2023\/04\/57.png 791w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2023\/04\/57-300x182.png 300w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2023\/04\/57-768x465.png 768w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2023\/04\/57-150x91.png 150w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2023\/04\/57-248x150.png 248w\" sizes=\"auto, (max-width: 791px) 100vw, 791px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"text-align:center\"><strong>\u56fe 1\uff1aAccountManagerService\u4e2d\u6dfb\u52a0\u5e10\u6237\u4fe1\u606f\u7684\u7b80\u5316\u7248\u8c03\u7528\u94fe<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u4e0a\u6240\u8ff0\uff0c\u8fd9\u7c7b\u5b89\u5168\u7f3a\u9677\u7684\u4e00\u4e2a(\u4e3b\u8981)\u539f\u56e0\u662f\u5bf9\u7cfb\u7edf\u670d\u52a1\u4e2d\u7684\u6570\u636e\u5b58\u50a8\u64cd\u4f5c\u7f3a\u5c11\u4fdd\u62a4\u3002\u5b89\u5353\u7cfb\u7edf\u670d\u52a1\u4e2d\u5bb9\u5668(\u5982\u6570\u7ec4\u3001\u96c6\u5408\u3001\u6570\u636e\u5e93\u7b49)\u7684\u751f\u547d\u5468\u671f\u8bbe\u8ba1\u662f\u53e6\u4e00\u4e2a\u91cd\u8981\u539f\u56e0\u3002\u4e3a\u4e86\u63d0\u4f9b\u6d41\u7545\u7684\u7528\u6237\u4f53\u9a8c\uff0cAndroid\u7cfb\u7edf\u670d\u52a1\u59cb\u7ec8\u968f\u65f6\u51c6\u5907\u4e3a\u5e94\u7528\u7a0b\u5e8f\u670d\u52a1\u3002\u5177\u4f53\u6765\u8bf4\uff0c\u65e0\u8bba\u5e94\u7528\u7a0b\u5e8f\u662f\u5426\u5728\u4f7f\u7528\uff0c\u7cfb\u7edf\u670d\u52a1\u59cb\u7ec8\u51c6\u5907\u7740\u5404\u79cd\u5bb9\u5668\u6765\u5b58\u50a8\u5e94\u7528\u7a0b\u5e8f\u7684\u5fc5\u8981\u6570\u636e\u3002\u503c\u5f97\u6ce8\u610f\u7684\u662f\uff0c\u8fd9\u662f\u5b89\u5353\u7cfb\u7edf\u7684\u57fa\u672c\u529f\u80fd\u3002\u4f8b\u5982\uff0c\u5b89\u5353\u7cfb\u7edf\u5141\u8bb8\u5e94\u7528\u7a0b\u5e8f\u6ce8\u518c\u8bb8\u591a\u4e8b\u4ef6\u76d1\u542c\u5668\uff0c\u5f53\u7279\u5b9a\u7684\u7cfb\u7edf\u4e8b\u4ef6\u53d1\u751f\u65f6\uff0c\u8fd9\u4e9b\u76d1\u542c\u5668\u5c06\u88ab\u89e6\u53d1\u3002\u76f8\u5e94\u7684\u7cfb\u7edf\u670d\u52a1\u5728\u5e94\u7528\u7a0b\u5e8f\u542f\u52a8\u4e4b\u524d\u521b\u5efa\u4e00\u4e2a\u5bb9\u5668\u6765\u5b58\u50a8\u8fd9\u4e9b\u4e8b\u4ef6\u76d1\u542c\u5668\uff0c\u5e76\u5728\u5e94\u7528\u7a0b\u5e8f\u5173\u95ed\u540e\u91ca\u653e\u5b83\u4eec\u3002\u56e0\u6b64\uff0c\u5728\u5e94\u7528\u7a0b\u5e8f\u4e8b\u4ef6\u76d1\u542c\u5668\u88ab\u5b58\u50a8\u5230\u5bb9\u5668\u4e2d\u7684\u65f6\u95f4(time-to-store)\u548c\u88ab\u91ca\u653e\u7684\u65f6\u95f4(time-to-release)\u4e4b\u95f4\u6709\u4e00\u4e2a\u5f88\u957f\u7684\u65f6\u95f4\u7a97\u53e3\uff0c\u8fd9\u7ed9\u4e86\u653b\u51fb\u8005\u53d1\u52a8\u653b\u51fb\u7684\u673a\u4f1a\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u8fd9\u79cd\u62d2\u7edd\u670d\u52a1\u653b\u51fb\u79f0\u4e3a\u7a3b\u8349\u653b\u51fb\uff08\u8fd9\u79cd\u653b\u51fb\u4f9d\u8d56\u4e8e\u4e0d\u65ad\u5411Android\u7cfb\u7edf\u670d\u52a1\u6ce8\u5165\u6570\u636e\uff0c\u5c31\u50cf\u662f\u5728\u9a86\u9a7c\u80cc\u4e0a\u4e0d\u65ad\u6dfb\u52a0\u7a3b\u8349\uff0c\u6700\u7ec8\u5c06\u5176\u7834\u574f\uff09\u3002\u4ece\u672c\u8d28\u4e0a\u8bb2\uff0c\u7a3b\u8349\u653b\u51fb\u5c5e\u4e8e\u4e00\u79cd\u7a7a\u95f4DoS\u653b\u51fb\uff0c\u5b83\u4f9d\u8d56\u4e8e\u5bf9\u6570\u636e\u5b58\u50a8\u64cd\u4f5c\u7684\u7d2f\u79ef\u5f71\u54cd\u2014\u2014\u6bcf\u6b21\u6570\u636e\u5b58\u50a8\u5bf9\u7cfb\u7edf\u670d\u52a1\u5185\u5b58\u7684\u5f71\u54cd\u5f88\u5c0f\uff0c\u4f46\u653b\u51fb\u8005\u53ef\u4ee5\u901a\u8fc7\u5728\u6570\u636e\u5b58\u50a8\u5230\u91ca\u653e\u7684\u65f6\u95f4\u7a97\u53e3\u5185\u8fde\u7eed\u8c03\u7528\u6613\u53d7\u653b\u51fb\u7684\u63a5\u53e3\u6765\u7d2f\u79ef\u5f71\u54cd\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u4e86\u89e3\u4e86\u7a3b\u8349\u653b\u51fb\u4e4b\u540e\uff0c\u6211\u4eec\u81f4\u529b\u4e8e\u8bbe\u8ba1\u9488\u5bf9\u8fd9\u7c7b\u6f0f\u6d1e\u7684\u81ea\u52a8\u5316\u68c0\u6d4b\u548c\u9a8c\u8bc1\u5de5\u5177\u3002\u7136\u800c\uff0c\u8fd9\u4e0d\u662f\u4e00\u9879\u5bb9\u6613\u7684\u4efb\u52a1\uff0c\u5b83\u9700\u8981\u89e3\u51b3\u82e5\u5e72\u6311\u6218\u5e76\u5b9e\u73b0\u4ee5\u4e0b\u76ee\u6807\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u25a0&nbsp;\u8986\u76d6\u5c3d\u53ef\u80fd\u591a\u7684\u6570\u636e\u5b58\u50a8\u6307\u4ee4\u3002Android\u7cfb\u7edf\u4f1a\u5728\u5e94\u7528\u7a0b\u5e8f\u8bf7\u6c42\u4e4b\u524d\u51c6\u5907\u5927\u91cf\u7684\u8d44\u6e90\uff0c\u7136\u800c\uff0c\u6ca1\u6709\u8be6\u7ec6\u7684\u6587\u6863\u53ef\u4ee5\u544a\u8bc9\u6211\u4eec\u76f8\u5e94\u7684\u673a\u5236\u662f\u5982\u4f55\u8bbe\u8ba1\u548c\u5b9e\u73b0\u7684\u3002\u6b64\u5916\uff0c\u5b50\u7cfb\u7edf\uff08\u670d\u52a1\uff09\u7684\u5b9a\u4e49\u4e0d\u660e\u786e\uff0c\u5b9e\u73b0\u4e0a\u5206\u6563\u5728\u5e9e\u5927\u7684Android\u4ee3\u7801\u5e93\u4e2d\u3002\u4f8b\u5982\uff0c\u201caudio\u201d\u7cfb\u7edf\u670d\u52a1\u7684\u6587\u6863\u53ea\u8bf4\u660e\u4e86\u5176\u8d1f\u8d23\u4e0e\u97f3\u9891\u786c\u4ef6\u7684\u4ea4\u4e92\u3002\u7136\u800c\uff0c\u5f53\u5e94\u7528\u521d\u59cb\u5316\u97f3\u9891\u64ad\u653e\u5668\u65f6\uff0c\u5b83\u7684\u97f3\u9891\u914d\u7f6e\u4fe1\u606f\u4f1a\u5b58\u50a8\u5728\u7cfb\u7edf\u670d\u52a1\u4e2d\uff0c\u800c\u6b64\u914d\u7f6e\u4ec5\u5728\u6ce8\u518c\u7684\u97f3\u9891\u64ad\u653e\u5668\u89e6\u53d1\u7279\u5b9a\u4e8b\u4ef6\u65f6\u4f7f\u7528\u3002\u56e0\u6b64\uff0c\u8be5\u5de5\u5177\u5e94\u8be5\u80fd\u591f\u7406\u89e3\u6570\u636e\u5b58\u50a8\u8fc7\u7a0b\uff0c\u5e76\u5c3d\u53ef\u80fd\u591a\u5730\u627e\u5230\u6570\u636e\u5b58\u50a8\u6307\u4ee4\u7684\u7c7b\u578b\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u25a0&nbsp;\u652f\u6301\u6d4b\u8bd5\u5927\u91cf\u4e0d\u540c\u7c7b\u578b\u7684\u670d\u52a1\u63a5\u53e3\u3002\u5728Android\u4e2d\u5b58\u5728\u5927\u91cf\u4e0d\u540c\u7684\u7cfb\u7edf\u670d\u52a1\u63a5\u53e3\uff0c\u8fd9\u4e9b\u63a5\u53e3\u5177\u6709\u4e0d\u540c\u7684\u529f\u80fd\u548c\u590d\u6742\u7684\u4ee3\u7801\u903b\u8f91\uff0c\u7406\u89e3\u5b83\u4eec\u9700\u8981\u5f3a\u5927\u7684\u9886\u57df\u77e5\u8bc6\u3002\u66f4\u7cdf\u7cd5\u7684\u662f\uff0c\u4e0d\u540c\u7684\u63a5\u53e3\u901a\u5e38\u9700\u8981\u4e0d\u540c\u7c7b\u578b\u7684\u8f93\u5165\u3002\u56e0\u6b64\uff0c\u8be5\u5de5\u5177\u5e94\u8be5\u662f\u901a\u7528\u7684\u3001\u53ef\u6269\u5c55\u7684\uff0c\u5e76\u4e14\u72ec\u7acb\u4e8e\u9886\u57df\u77e5\u8bc6\u3002\u6b64\u5916\uff0c\u6700\u597d\u80fd\u591f\u5411\u7cfb\u7edf\u670d\u52a1\u63a5\u53e3\u63d0\u4f9b\u9002\u5f53\u7684\u8f93\u5165\u5728\u6d4b\u8bd5\u671f\u95f4\u5f15\u5bfc\u670d\u52a1\u89e6\u53d1\u5c3d\u53ef\u80fd\u591a\u7684\u6f0f\u6d1e\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u25a0&nbsp;\u4ee5\u8f7b\u91cf\u800c\u6709\u6548\u7684\u65b9\u5f0f\u76d1\u63a7\u653b\u51fb\u6548\u679c\u3002\u53d1\u8d77\u7a3b\u8349\u653b\u51fb\u901a\u5e38\u9700\u8981\u7d2f\u79ef\u6548\u5e94\u3002\u89e6\u53d1\u4e00\u6b21\u6570\u636e\u5b58\u50a8\u6307\u4ee4\u6240\u9020\u6210\u7684\u5f71\u54cd\uff0c\u4f8b\u5982\u5185\u5b58\u53d8\u5316\uff0c\u901a\u5e38\u662f\u5f88\u5fae\u5c0f\u7684\uff0c\u96be\u4ee5\u76d1\u63a7\u3002\u56e0\u6b64\uff0c\u8be5\u5de5\u5177\u5e94\u8be5\u80fd\u591f\u5bf9\u5185\u5b58\u53d8\u5316\u6bd4\u8f83\u654f\u611f\u3002\u7136\u800c\uff0c\u4ec5\u9760\u5185\u5b58\u53d8\u5316\u5bf9\u4e8e\u6f0f\u6d1e\u68c0\u6d4b\u6765\u8bf4\u662f\u6bd4\u8f83\u4f4e\u6548\u7684\uff0c\u56e0\u4e3a\u5b83\u65e0\u6cd5\u5224\u65ad\u6570\u636e\u9a7b\u7559\u7684\u65f6\u95f4\u7a97\u53e3\u662f\u5426\u8db3\u4ee5\u8017\u5c3d\u7cfb\u7edf\u670d\u52a1\u5185\u5b58\u3002\u56e0\u6b64\uff0c\u4e3a\u4e86\u786e\u8ba4\u6f0f\u6d1e\uff0c\u6211\u4eec\u5e94\u8be5\u8981\u89e6\u53d1\u653b\u51fb\u6548\u679c\uff0c\u4f8b\u5982\uff0c\u7cfb\u7edf\u670d\u52a1\u5d29\u6e83\u3002\u6b64\u5916\uff0c\u4e3a\u4e86\u89e6\u53d1\u8fd9\u6837\u7684\u7ed3\u679c\uff0c\u6bcf\u4e2a\u6570\u636e\u5b58\u50a8\u64cd\u4f5c\u53ef\u80fd\u9700\u8981\u6267\u884c\u6210\u5343\u4e0a\u4e07\u6b21\u3002\u56e0\u6b64\uff0c\u8be5\u5de5\u5177\u5e94\u8be5\u4ee5\u8f7b\u91cf\u7ea7\u7684\u65b9\u5f0f\u8fdb\u884c\u5206\u6790\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e3a\u4e86\u5b9e\u73b0\u8fd9\u4e9b\u76ee\u6807\uff0c\u6211\u4eec\u63d0\u51fa\u4e00\u79cd\u57fa\u4e8e\u5b9a\u5411\u7070\u76d2\u6a21\u7cca\u6d4b\u8bd5\uff08DGF\uff09\u7684\u65b9\u6cd5\uff0c\u79f0\u4e3aStrawFuzzer\u3002\u6211\u4eec\u7684\u57fa\u672c\u601d\u8def\u662f\u4e0d\u65ad\u5411\u7cfb\u7edf\u670d\u52a1\u8fdb\u7a0b\u53d1\u9001\u8f93\u5165\u6570\u636e\uff08\u901a\u8fc7Android API\u8c03\u7528\uff09\uff0c\u5e76\u76d1\u89c6\u5176\u5185\u5b58\u5927\u5c0f\u7684\u53d8\u5316\uff0c\u4ee5\u67e5\u770b\u5176\u662f\u5426\u80fd\u591f\u53ca\u65f6\u91ca\u653e\u6ce8\u5165\u7684\u6570\u636e\u3002StrawFuzzer\u7ed3\u5408\u4e86\u9759\u6001\u5206\u6790\u548c\u52a8\u6001\u5206\u6790\u6280\u672f\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u68c0\u6d4b\u548c\u9a8c\u8bc1Android\u7cfb\u7edf\u670d\u52a1\u4e2d\u7684straw\u6f0f\u6d1e\u3002\u9996\u5148\uff0c\u901a\u8fc7\u9759\u6001\u5206\u6790\u53ef\u4ee5\u4e86\u89e3\u7cfb\u7edf\u670d\u52a1\u7684\u5168\u8c8c\uff0c\u5e76\u4e14\u80fd\u591f\u5b9a\u4f4d\u6240\u6709\u6f5c\u5728\u7684\u6570\u636e\u5b58\u50a8\u6307\u4ee4\u3002\u4f46\u662f\uff0c\u9759\u6001\u5206\u6790\u5f88\u96be\u5f97\u5230\u8fd0\u884c\u65f6\u5185\u5b58\u7684\u72b6\u6001\u3002\u56e0\u6b64\uff0c\u6211\u4eec\u5f15\u5165\u52a8\u6001\u6a21\u7cca\u4f5c\u4e3a\u8865\u5145\uff0c\u5b83\u4e0d\u4ec5\u53ef\u4ee5\u76d1\u63a7\u8fd0\u884c\u65f6\u5185\u5b58\u4f7f\u7528\u60c5\u51b5\uff0c\u8fd8\u53ef\u4ee5\u751f\u6210PoC\u6765\u9a8c\u8bc1\u6f0f\u6d1e\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u9075\u5faa\u4e0a\u8ff0\u65b9\u6cd5\uff0cStrawFuzzer\u88ab\u8bbe\u8ba1\u4e3a\u4e00\u4e2a\u4e24\u9636\u6bb5\u7684\u5206\u6790\u5de5\u5177\u3002\u5728\u7b2c\u4e00\u9636\u6bb5(\u5373\u9759\u6001\u5206\u9636\u6bb5\u6790)\uff0cStrawFuzzer\u9996\u5148\u5728\u7cfb\u7edf\u670d\u52a1\u4ee3\u7801\u4e0a\u5e94\u7528\u9759\u6001\u7a0b\u5e8f\u5206\u6790\u6280\u672f\u6765\u751f\u6210\u8c03\u7528\u56fe\u3001\u63a7\u5236\u6d41\u56fe\u548c\u6570\u636e\u6d41\u56fe\u3002\u63a5\u4e0b\u6765StrawFuzzer\u8bbe\u8ba1\u4e86\u4e00\u4e9b\u542f\u53d1\u5f0f\u89c4\u5219\uff0c\u4ee5\u5c3d\u53ef\u80fd\u591a\u5730\u5b9a\u4f4d\u6613\u53d7\u653b\u51fb\u7684\u6570\u636e\u5b58\u50a8\u6307\u4ee4\uff0c\u5e76\u5c06\u5176\u7528\u4f5c\u4e0b\u4e00\u9636\u6bb5\u6a21\u7cca\u6d4b\u8bd5\u7684\u76ee\u6807\u3002\u53e6\u5916\uff0cStrawFuzzer\u53ef\u4ee5\u63d0\u53d6\u76f8\u5173\u7684\u8def\u5f84\u7ea6\u675f\u6761\u4ef6\u6765\u751f\u6210\u9ad8\u8d28\u91cf\u7684\u79cd\u5b50\u8f93\u5165\u3002\u5728\u7b2c\u4e8c\u4e2a\u5206\u6790\u9636\u6bb5(\u5373\u52a8\u6001\u6a21\u7cca\u6d4b\u8bd5\u9636\u6bb5)\uff0cStrawFuzzer\u9a8c\u8bc1\u66b4\u9732\u7684\u6570\u636e\u5b58\u50a8\u6307\u4ee4\u662f\u5426\u53ef\u4ee5\u88ab\u6ce8\u5165\u5e76\u8d85\u8fc7\u5185\u5b58\u9650\u5236\u3002\u9996\u5148\uff0cStrawFuzzer\u4f7f\u7528\u4e00\u4e2a\u8f7b\u91cf\u7ea7\u7684\u63d2\u88c5\u73af\u5883\u6765\u4ed4\u7ec6\u76d1\u63a7\u5185\u5b58\u5927\u5c0f\u7684\u53d8\u5316\uff0c\u5e76\u8ba1\u7b97\u8f93\u5165\u5230\u76ee\u6807\u6d4b\u8bd5\u6307\u4ee4\u7684\u8ddd\u79bb\u3002\u5176\u6b21\uff0cStrawFuzzer\u4f7f\u7528\u81ea\u9002\u5e94\u7b56\u7565\u5bf9\u79cd\u5b50\u8fdb\u884c\u4f18\u5148\u7ea7\u6392\u5e8f\uff0c\u4ee5\u5b9e\u73b0\u5728\u8def\u5f84\u63a2\u7d22(\u65e8\u5728\u6267\u884c\u5230\u76ee\u6807\u6307\u4ee4)\u548c\u6f0f\u6d1e\u5229\u7528(\u65e8\u5728\u8017\u5c3d\u5185\u5b58)\u4e4b\u95f4\u8fdb\u884c\u826f\u597d\u7684\u5e73\u8861\u3002\u6700\u540e\uff0c\u5f53\u4e00\u4e2a\u6f0f\u6d1e\u88ab\u786e\u8ba4\u65f6\uff0cStrawFuzzer\u5c06\u6536\u96c6\u6240\u6709\u7ed3\u679c\u4ee5\u751f\u6210\u6f0f\u6d1e\u5229\u7528\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6211\u4eec\u57283\u4e2a\u6d41\u884c\u7684Android\u7cfb\u7edf(Pixel3\u4e0a\u7684Android 10.0, Pixel3 XL\u4e0a\u7684Android 11.0\uff0cOneplus7\u4e0a\u7684Android 10.0)\u4e0a\u6d4b\u8bd5\u4e86StrawFuzzer\uff0c\u6210\u529f\u53d1\u73b0\u4e8635\u4e2astraw\u6f0f\u6d1e\u548c474\u4e2a\u6613\u53d7\u653b\u51fb\u7684\u7cfb\u7edf\u670d\u52a1\u63a5\u53e3\uff0c\u8fd9\u4e9b\u6f0f\u6d1e\u5f71\u54cd\u4e86\u7ea635%\u7684Android\u7cfb\u7edf\u670d\u52a1\uff0c\u5373\u4f7f\u662f\u9ad8\u6743\u9650\u8bbf\u95ee\u63a7\u5236\u7684\u63a5\u53e3\u4e5f\u53ef\u80fd\u53d7\u5230\u653b\u51fb\u3002\u6211\u4eec\u8fdb\u4e00\u6b65\u5206\u6790\u4e86\u534e\u4e3a\u3001\u4e09\u661f\u548cVivo\u76843\u4e2a\u5b9a\u5236\u5316Android\u7cfb\u7edf\uff0c\u53d1\u73b0\u5b83\u4eec\u7ee7\u627f\u4e86\u539f\u751fAndroid\u7cfb\u7edf\u4e2d\u7684\u5927\u90e8\u5206\u6f0f\u6d1e\u3002\u6b64\u5916\uff0c\u653b\u51fb\u8005\u53ef\u4ee5\u63a7\u5236\u653b\u51fb\u901f\u5ea6\uff0c\u6211\u4eec\u53d1\u73b0\u81f3\u5c1142%\u7684\u653b\u51fb\u53ef\u4ee5\u57281\u79d2\u5185\u5b8c\u6210\uff0c90%\u7684\u653b\u51fb\u53ef\u4ee5\u572877.6\u79d2\u5185\u5b8c\u6210\u3002\u9664\u4e86\u7cfb\u7edf\u670d\u52a1\uff0c\u6211\u4eec\u786e\u8ba4\u81f3\u5c11\u5b58\u57283\u4e2a\u6f0f\u6d1e\u53ef\u4ee5\u88ab\u5229\u7528\u4ee5\u653b\u51fbAndroid\u5e94\u7528\u7a0b\u5e8f\u63d0\u4f9b\u7684\u670d\u52a1\uff0c\u56e0\u4e3a\u5e94\u7528\u7a0b\u5e8f\u63d0\u4f9b\u7684\u670d\u52a1\u4e0e\u7cfb\u7edf\u670d\u52a1\u8bbe\u8ba1\u548c\u5b9e\u73b0\u539f\u7406\u76f8\u540c\uff0c\u540c\u6837\u53d7\u8fd9\u7c7b\u6f0f\u6d1e\u7684\u5f71\u54cd\u3002\u5177\u4f53\u6765\u8bf4\uff0c\u6211\u4eec\u6536\u96c6\u4e86Google Play\u4e0a\u6392\u540d\u524d100\u7684\u514d\u8d39\u5e94\u7528\uff0c\u5e76\u786e\u8ba4\u5176\u4e2d76\u4e2a\u5e94\u7528\u80fd\u591f\u906d\u53d7\u7a3b\u8349\u653b\u51fb\u3002<\/p>\n\n\n\n<p style=\"text-align:center\" class=\"has-text-color has-medium-font-size has-vivid-cyan-blue-color wp-block-paragraph\">02<strong>\u7406\u89e3\u7a3b\u8349\u653b\u51fb<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u672c\u8282\u4e2d\uff0c\u6211\u4eec\u5c06\u89e3\u91ca\u7a3b\u8349\u653b\u51fb\u662f\u5982\u4f55\u6267\u884c\u7684\uff0c\u4ee5\u53ca\u4e3a\u4ec0\u4e48\u8fd9\u4e9b\u6f0f\u6d1e\u5728Android\u4e2d\u666e\u904d\u5b58\u5728\u3002\u4e3a\u4e86\u4fdd\u6301\u4e00\u81f4\u6027\uff0c\u672c\u6587\u4f7f\u7528\u670d\u52a1\u7aef\u8fdb\u7a0b\u8868\u793a\u63a5\u6536\u6570\u636e\u7684\u8fdb\u7a0b\uff0c\u5ba2\u6237\u7aef\u8fdb\u7a0b\u6307\u4ee3\u5728\u8fdb\u7a0b\u95f4\u901a\u4fe1\u4e2d\u53d1\u9001\u6570\u636e\u7684\u8fdb\u7a0b\uff0c\u516c\u5f00\u63a5\u53e3\u6307\u4ee3\u670d\u52a1\u7aef\u8fdb\u7a0b\u63d0\u4f9b\u7684Android API\u8c03\u7528\u3002\u6b64\u5916\uff0c\u5ba2\u6237\u7aef\u8fdb\u7a0b\u901a\u8fc7\u53d1\u9001\u5305\u542b\u8f93\u5165\u53c2\u6570\u7684\u8bf7\u6c42\u5411\u670d\u52a1\u7aef\u8fdb\u7a0b\u6ce8\u5165\u6570\u636e\u3002\u7531\u4e8eAndroid\u7cfb\u7edf\u548c\u5e94\u7528\u7a0b\u5e8f\u90fd\u53ef\u4ee5\u63d0\u4f9b\u63a5\u6536\u6570\u636e\u7684\u670d\u52a1\uff0c\u6240\u4ee5\u5b83\u4eec\u90fd\u53ef\u4ee5\u4f5c\u4e3a\u670d\u52a1\u7aef\u8fdb\u7a0b\uff0c\u53d7\u5230\u7a3b\u8349\u653b\u51fb\u7684\u5f71\u54cd\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>1. \u5b89\u5353\u670d\u52a1\u4e2d\u7684\u7a3b\u8349\u653b\u51fb<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7a3b\u8349\u653b\u51fb\u5229\u7528\u670d\u52a1\u7aef\u4ee3\u7801\u4e2d\u7684\u903b\u8f91\u7f3a\u9677\u6765\u8017\u5c3d\u5176\u5185\u5b58\u8d44\u6e90\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u670d\u52a1\u7aef\u8fdb\u7a0b\u4e0d\u9650\u5236\u5176\u5b58\u50a8\u7684\u4ece\u5ba2\u6237\u7aef\u8fdb\u7a0b\u53d1\u9001\u7684\u6570\u636e\u603b\u91cf\u3002\u5728\u8fd9\u7c7b\u653b\u51fb\u53d1\u8d77\u7684\u8fc7\u7a0b\u4e2d\uff0c\u6076\u610f\u5e94\u7528\u7a0b\u5e8f\u4e0d\u9700\u8981\u7279\u6b8a\u7684\u914d\u7f6e\uff0c\u770b\u8d77\u6765\u5c31\u50cf\u4e00\u4e2a\u666e\u901a\u7684\u5e94\u7528\u7a0b\u5e8f\u3002\u5177\u4f53\u800c\u8a00\uff0c\u5728\u6bcf\u6b21\u8fed\u4ee3\u4e2d\uff0c\u6076\u610f\u5e94\u7528\u7a0b\u5e8f\u8c03\u7528Android\u670d\u52a1\u4e2d\u7684\u4e00\u4e2a\u516c\u5f00\u63a5\u53e3\uff0c\u968f\u540eAndroid Binder\u63d0\u4f9b\u6240\u9700\u7684\u8fdb\u7a0b\u95f4\u901a\u4fe1(IPC)\u6765\u8fde\u63a5\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u7aef\u8fdb\u7a0b\u3002\u63a5\u4e0b\u6765\uff0c\u76ee\u6807\u63a5\u53e3\u5728\u670d\u52a1\u7aef\u8fdb\u7a0b\u4e2d\u88ab\u6267\u884c\uff0c\u4f7f\u7528\u6765\u81ea\u5ba2\u6237\u7aef\u8fdb\u7a0b\u7684\u8f93\u5165\u6570\u636e\u3002\u4ece\u63a5\u53e3\u6267\u884c\u8fc7\u7a0b\u4e2d\u89e6\u53d1\u6613\u53d7\u653b\u51fb\u7684\u6570\u636e\u5b58\u50a8\u6307\u4ee4\u3002\u6267\u884c\u5b8c\u6210\u540e\uff0c\u6570\u636e\u88ab\u5b58\u50a8\u5e76\u4fdd\u7559\u5728\u670d\u52a1\u5668\u5185\u5b58\u4e2d\u3002\u503c\u5f97\u6ce8\u610f\u7684\u662f\uff0c\u6076\u610f\u5e94\u7528\u7a0b\u5e8f\u8c03\u7528\u516c\u5f00\u63a5\u53e3\u7684\u884c\u4e3a\u548c\u6240\u6709\u5176\u4ed6\u65e0\u5bb3\u5e94\u7528\u7a0b\u5e8f\u662f\u76f8\u540c\u7684\uff0c\u56e0\u6b64\u5f88\u96be\u5c06\u5176\u4e0e\u5176\u4ed6\u5e94\u7528\u7a0b\u5e8f\u533a\u5206\u5f00\u6765\uff0c\u552f\u4e00\u7684\u533a\u522b\u662f\u6076\u610f\u5e94\u7528\u7a0b\u5e8f\u4f1a\u591a\u6b21\u8c03\u7528\u8be5\u63a5\u53e3\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Android\u5305\u542b\u5927\u91cf\u7684\u7cfb\u7edf\u670d\u52a1(\u4f8b\u5982\uff0cAndroid 11.0\u4e2d\u6709200\u4e2a\u670d\u52a1)\u548c\u5e94\u7528\u7a0b\u5e8f(GooglePlay\u4e2d\u6709\u8d85\u8fc7280\u4e07\u4e2a\u5e94\u7528\u7a0b\u5e8f)\u3002\u5c3d\u7ba1\u5b83\u4eec\u57fa\u4e8eBinder \u8fdb\u7a0b\u95f4\u901a\u4fe1\u5b9e\u73b0\u4e86\u4e0d\u540c\u7684\u529f\u80fd\uff0c\u4f46\u5e95\u5c42\u673a\u5236\u662f\u76f8\u540c\u7684\u2014\u2014\u5ba2\u6237\u7aef\u6570\u636e\u9996\u5148\u5e8f\u5217\u5316\u5b58\u50a8\u5728parcel\u4e2d\uff0c\u901a\u8fc7Binder.transaction()\u53d1\u9001\u5230\u670d\u52a1\u7aef\uff0c\u7136\u540e\u670d\u52a1\u7aef\u8fdb\u7a0b\u5728Binder.onTransaction()\u4e2d\u5bf9\u8f93\u5165\u6570\u636e\u8fdb\u884c\u53cd\u5e8f\u5217\u5316\uff0c\u5e76\u4f20\u9012\u5230\u5bf9\u5e94\u7684\u672c\u5730\u65b9\u6cd5\u3002\u5982\u679c\u4f20\u5165\u7684\u6570\u636e\u5b58\u50a8\u5728\u670d\u52a1\u7aef\u5185\u5b58\u4e2d\uff0c\u5219\u4f1a\u6d88\u8017\u670d\u52a1\u7aef\u8fdb\u7a0b\u7684\u5185\u5b58\u8d44\u6e90\u3002\u56e0\u6b64\uff0c\u5bf9\u5b83\u4eec\u800c\u8a00\uff0c\u7a3b\u8349\u653b\u51fb\u662f\u76f8\u4f3c\u7684\u3002\u6b64\u5916\uff0cAndroid Binder\u4f7f\u7528\u56fa\u5b9a\u5927\u5c0f\u7684\u7f13\u51b2\u533a\u6765\u9650\u5236\u8fdb\u7a0b\u95f4\u901a\u4fe1\u7684\u6570\u636e\u4e0d\u80fd\u8d85\u8fc71MB\uff0c\u5e76\u4e14\u8fd9\u4e2a\u7f13\u51b2\u533a\u662f\u7cfb\u7edf\u4e2d\u6240\u6709\u8fdb\u7a0b\u95f4\u901a\u4fe1\u6240\u5171\u4eab\u7684\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>2. \u6839\u56e0\u5206\u6790<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0d\u4e00\u81f4\u7684\u751f\u547d\u5468\u671f\u3002\u901a\u8fc7\u57fa\u4e8eBinder\u7684\u8fdb\u7a0b\u95f4\u901a\u4fe1\uff0c\u5ba2\u6237\u7aef\u8fdb\u7a0b\u53ef\u4ee5\u5411\u670d\u52a1\u7aef\u8fdb\u7a0b\u53d1\u9001\u6570\u636e\u3002\u4f46\u662f\uff0c\u7531\u4e8e\u670d\u52a1\u7aef\u8fdb\u7a0b\u6570\u636e\u5b58\u50a8(time-to-store)\u548c\u6570\u636e\u91ca\u653e(time-to-release)\u64cd\u4f5c\u4e4b\u95f4\u5b58\u5728\u65f6\u95f4\u7a97\u53e3\uff0c\u5bfc\u81f4\u5ba2\u6237\u7aef\u8fdb\u7a0b\u548c\u670d\u52a1\u7aef\u8fdb\u7a0b\u4e2d\u8fd9\u90e8\u5206\u6570\u636e\u7684\u751f\u547d\u5468\u671f\u5b58\u5728\u4e86\u4e0d\u4e00\u81f4\u3002\u66f4\u5177\u4f53\u5730\u8bf4\uff0c\u5f53\u8fdb\u7a0b\u95f4\u901a\u4fe1\u7ed3\u675f\u65f6\uff0c\u5ba2\u6237\u7aef\u8fdb\u7a0b\u53ef\u4ee5\u91ca\u653e\u6570\u636e\u5e76\u56de\u6536\u5b83\u4eec\u5360\u7528\u7684\u5185\u5b58\uff0c\u4f46\u662f\u670d\u52a1\u7aef\u8fdb\u7a0b\u5c06\u957f\u65f6\u95f4\u4fdd\u5b58\u8fd9\u4e9b\u6570\u636e\uff0c\u4ee5\u5907\u5c06\u6765\u4f7f\u7528\u3002\u4f8b\u5982\uff0c\u5728\u56fe2\u4e2d\uff0c\u5ba2\u6237\u7aef\u5e94\u7528\u7a0b\u5e8f\u521b\u5efa\u4e86\u4e00\u4e2a\u7528\u4e8e\u5904\u7406\u7528\u6237\u64cd\u4f5c\u7684\u7a97\u53e3\u4f1a\u8bdd\uff0c\u5bf9\u4e8e\u6bcf\u4e2a\u4f1a\u8bdd\uff0c\u670d\u52a1\u7aef\u548c\u5ba2\u6237\u7aef\u8fdb\u7a0b\u90fd\u7ef4\u62a4\u7740\u4e00\u4e9b\u6570\u636e\u7ed3\u6784\u6765\u5b58\u50a8\u6b64\u4f1a\u8bdd\u7684\u6570\u636e\u3002\u7136\u800c\uff0c\u5982\u679c\u5ba2\u6237\u7aef\u5e94\u7528\u7a0b\u5e8f\u91ca\u653e\u4e86\u8fd9\u4e9b\u6570\u636e\u5360\u7528\u7684\u5185\u5b58\uff0c\u670d\u52a1\u7aef\u8fdb\u7a0b\u4ecd\u7136\u4f1a\u4fdd\u6301\u8fd9\u4e2a\u4f1a\u8bdd\u3002\u4e8b\u5b9e\u4e0a\uff0c\u901a\u8fc7linkToDeath()\u5c06\u4f1a\u8bdd\u4e0e\u5ba2\u6237\u7aef\u5e94\u7528\u7a0b\u5e8f\u7684\u751f\u547d\u5468\u671f\u7ed1\u5b9a\u540e\uff0c\u670d\u52a1\u7aef\u8fdb\u7a0b\u5c06\u4e0d\u4f1a\u56de\u6536\u6b64\u4f1a\u8bdd\uff0c\u9664\u975e\u5ba2\u6237\u7aef\u5e94\u7528\u7a0b\u5e8f\u7ec8\u6b62\u3002\u56e0\u6b64\uff0c\u8fdb\u7a0b\u95f4\u901a\u4fe1\u4f20\u9012\u7684\u6570\u636e\u5bf9\u8c61\u7684\u751f\u547d\u5468\u671f\u4e0d\u4e00\u81f4\uff0c\u4f1a\u5bfc\u81f4\u670d\u52a1\u7aef\u8fdb\u7a0b\u6bd4\u5ba2\u6237\u8fdb\u7a0b\u6d88\u8017\u66f4\u591a\u7684\u5185\u5b58\u8d44\u6e90\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"718\" height=\"641\" src=\"https:\/\/www.inforsec.org\/wp\/wp-content\/uploads\/2023\/04\/58-1.png\" alt=\"\" class=\"wp-image-5913\" srcset=\"http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2023\/04\/58-1.png 718w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2023\/04\/58-1-300x268.png 300w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2023\/04\/58-1-150x134.png 150w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2023\/04\/58-1-168x150.png 168w\" sizes=\"auto, (max-width: 718px) 100vw, 718px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"text-align:center\"><strong>\u56fe2\uff1a\u5728WindowManagerService\u4e2d\u6ce8\u518cWindows\u4f1a\u8bdd\u7684\u8c03\u7528\u94fe\u7b80\u5316\u3002<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Android\u7cfb\u7edf\u5f00\u53d1\u4eba\u5458\u4e5f\u53ef\u80fd\u5bf9\u5b58\u50a8\u5728\u7cfb\u7edf\u670d\u52a1\u7aef\u8fdb\u7a0b\u4e2d\u7684\u6570\u636e\u7684\u751f\u547d\u5468\u671f\u611f\u5230\u56f0\u60d1\u3002\u56fe2\u6240\u793a\u7684Android\u6e90\u4ee3\u7801\u4e2d\u7684\u6ce8\u91ca\u5c31\u662f\u4e00\u4e2a\u4f8b\u5b50\uff0c\u4ed6\u4eec\u8ba4\u4e3a\u4e00\u65e6\u8c03\u7528\u8005\u8fdb\u7a0b\u7ed3\u675f\uff0c\u8fd9\u4e2a\u4f1a\u8bdd\u5bf9\u8c61\u5e94\u8be5\u88ab\u91ca\u653e\uff0c\u4ed6\u4eec\u60f3\u77e5\u9053\u662f\u5426\u5e94\u8be5\u4e3b\u52a8\u4f7f\u7528killSessionLocked()\u6765\u56de\u6536\u5b83\u3002\u4f46\u662f\uff0c\u6839\u636e\u6211\u4eec\u7684\u5b9e\u9a8c\u53d1\u73b0\uff0c\u5f53\u8c03\u7528\u8005\u8fdb\u7a0b\u7ed3\u675f\u65f6\uff0c\u670d\u52a1\u7aef\u8fdb\u7a0b\u4e0d\u4f1a\u7acb\u5373\u6740\u6b7b\u4f1a\u8bdd\u5bf9\u8c61\u3002\u5b9e\u9645\u4e0a\uff0c\u5728\u6211\u4eec\u7ed3\u675f\u8c03\u7528\u65b9\u5e94\u7528\u7a0b\u5e8f\u540e\uff0c\u5e73\u5747\u9700\u8981\u5927\u7ea6385\u79d2\u540e\u670d\u52a1\u7aef\u624d\u4f1a\u91ca\u653e\u8fd9\u4e9b\u6570\u636e\u3002\u5982\u679c\u6211\u4eec\u76f4\u63a5\u5378\u8f7d\u8c03\u7528\u65b9\u5e94\u7528\u7a0b\u5e8f\uff0c\u5219\u5e73\u5747\u9700\u8981\u5927\u7ea6450\u79d2\u3002\u8fd9\u4e2a\u65f6\u95f4\u7a97\u53e3\u53ef\u80fd\u4f1a\u88ab\u653b\u51fb\u8005\u8fdb\u4e00\u6ee5\u7528\uff0c\u8bef\u5bfc\u79fb\u52a8\u7528\u6237\u3002\u4f8b\u5982\uff0c\u653b\u51fb\u8005\u5e94\u7528\u7a0b\u5e8f\u53ef\u4ee5\u4e8b\u5148\u6d88\u8017\u5927\u90e8\u5206\u7cfb\u7edf\u670d\u52a1\u5668\u5185\u5b58\u8d44\u6e90\uff0c\u8fd9\u4e9b\u8d44\u6e90\u53ea\u6bd4\u4e0a\u9650\u5c0f\u4e00\u70b9\u3002\u5728\u7528\u6237\u5173\u95ed\u653b\u51fb\u8005\u5e94\u7528\u7a0b\u5e8f\u5e76\u542f\u52a8\u53e6\u4e00\u4e2a\u5e94\u7528\u7a0b\u5e8f\u540e\uff0c\u4e00\u65e6\u8be5\u5e94\u7528\u7a0b\u5e8f\u6d88\u8017\u670d\u52a1\u5668\u5185\u5b58\uff0c\u7cfb\u7edf\u670d\u52a1\u5668\u5c31\u4f1a\u53d1\u751f\u5185\u5b58\u6ea2\u51fa\u800c\u5d29\u6e83\uff0c\u8fd9\u4ece\u79fb\u52a8\u7528\u6237\u7684\u89d2\u5ea6\u6765\u770b\uff0c\u653b\u51fb\u8005\u7684\u89d2\u8272\u88ab\u5ac1\u7978\u7ed9\u4e86\u53e6\u4e00\u4e2a\u5e94\u7528\u7a0b\u5e8f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6709\u9650\u7684\u5185\u5b58\u4f7f\u7528\u3002Android\u5bf9\u6bcf\u4e2a\u8fdb\u7a0b\u7684\u5185\u5b58\u8d44\u6e90\u4f7f\u7528(\u5305\u62ec\u7cfb\u7edf\u670d\u52a1\u8fdb\u7a0b)\u5b9e\u65bd\u4e86\u9650\u5236\uff0c\u8fd9\u4ee3\u8868\u670d\u52a1\u7aef\u8fdb\u7a0b\u5185\u5b58\u4e2d\u5b58\u50a8\u7684\u6570\u636e\u603b\u91cf\u6709\u4e00\u4e2a\u4e0a\u9650\uff0c\u4f8b\u5982\uff0c\u5728Pixel 3XL (Android 11)\u4e2d\u6bcf\u4e2a\u8fdb\u7a0b\u7684\u5806\u5185\u5b58\u4e0a\u9650\u4e3a512MB\u3002\u5982\u679c\u7cfb\u7edf\u670d\u52a1\u8fdb\u7a0b\u7684\u5806\u5185\u5b58\u88ab\u8017\u5c3d\uff0c\u5c06\u4f1a\u629b\u51fa&#8217;java.lang.OutOfMemoryError &#8216;\u5e76\u5d29\u6e83\u3002\u6b64\u5916\uff0cAndroid\u8fd8\u8bbe\u7f6e\u4e86\u5927\u91cf\u7684\u5b9a\u5236\u5316\u5185\u5b58\u8d44\u6e90\u9650\u5236\u3002\u4f8b\u5982\uff0c\u5982\u56fe3\u6240\u793a\uff0c\u5728\u201c\u4f20\u611f\u5668\u201d\u670d\u52a1\u4e2d\u6ce8\u518c\u7684\u4f20\u611f\u5668\u76d1\u542c\u5668\u7684\u6570\u91cf\u4e0d\u80fd\u8d85\u8fc7128\u4e2a\u3002\u5426\u5219\u5b83\u5c06\u89e6\u53d1&#8217;java.lang.IllegalStateException&#8217;\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"937\" height=\"415\" src=\"https:\/\/www.inforsec.org\/wp\/wp-content\/uploads\/2023\/04\/59.png\" alt=\"\" class=\"wp-image-5912\" srcset=\"http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2023\/04\/59.png 937w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2023\/04\/59-300x133.png 300w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2023\/04\/59-768x340.png 768w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2023\/04\/59-150x66.png 150w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2023\/04\/59-250x111.png 250w\" sizes=\"auto, (max-width: 937px) 100vw, 937px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"text-align:center\"><strong>\u56fe3\uff1a\u4f20\u611f\u5668\u670d\u52a1\u4e2d\u9650\u5236\u6ce8\u518c\u7684\u4f20\u611f\u5668\u76d1\u542c\u5668\u6570\u91cf\u4e0d\u80fd\u8d85\u8fc7128\u4e2a\u3002<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f53\u8fd9\u4e9b\u6709\u9650\u7684\u5185\u5b58\u8d44\u6e90\u88ab\u8017\u5c3d\uff0c\u5c06\u5f15\u8d77Android\u6062\u590d\u673a\u5236\u7684\u5173\u6ce8\uff0c\u5982Watchdog\u548cANR\u3002\u8fd9\u4e9b\u673a\u5236\u539f\u672c\u88ab\u8bbe\u8ba1\u7528\u4e8e\u5728\u7cfb\u7edf\u8fd0\u884c\u81f3\u9519\u8bef\u72b6\u6001\u65f6\u91cd\u65b0\u542f\u52a8\u7cfb\u7edf\uff0c\u7136\u800c\u653b\u51fb\u8005\u53ef\u4ee5\u901a\u8fc7\u8017\u5c3d\u7cfb\u7edf\u670d\u52a1\u8fdb\u7a0b\u5185\u5b58\u8d44\u6e90\uff0c\u63a7\u5236\u7cfb\u7edf\u670d\u52a1\u8fdb\u7a0b\u4f55\u65f6\u4ee5\u53ca\u591a\u4e45\u4f1a\u8fdb\u5165\u4e00\u4e2a\u9519\u8bef\u72b6\u6001\uff0c\u8fd9\u8fdc\u8fdc\u8d85\u51fa\u4e86Android\u6062\u590d\u673a\u5236\u539f\u672c\u7684\u8bbe\u8ba1\u76ee\u7684\u3002\u6b64\u5916\uff0c\u867d\u7136Android\u5b9e\u73b0\u4e86\u5927\u91cf\u7684\u7cfb\u7edf\u670d\u52a1\uff0c\u4f46\u5b83\u4eec\u5927\u591a\u8fd0\u884c\u5728\u540c\u4e00\u4e2a\u8fdb\u7a0b\u4e2d\uff0c\u5373\u7cfb\u7edf\u670d\u52a1\u8fdb\u7a0b\u3002\u56e0\u6b64\uff0c\u4e00\u4e2a\u7cfb\u7edf\u670d\u52a1\u7684\u5d29\u6e83\u4f1a\u7834\u574f\u6574\u4e2a\u7cfb\u7edf\u670d\u52a1\u8fdb\u7a0b\uff0c\u5f71\u54cd\u5230\u5176\u4ed6\u7cfb\u7edf\u670d\u52a1\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5185\u5b58\u5927\u5c0f\u68c0\u67e5\u4e0d\u8db3\u3002\u4fdd\u62a4\u670d\u52a1\u7aef\u8fdb\u7a0b\u907f\u514d\u5185\u5b58\u8d44\u6e90\u8017\u5c3d\u7684\u4e00\u4e2a\u76f4\u89c2\u65b9\u6cd5\u662f\u5728\u5b58\u50a8\u6765\u81ea\u5ba2\u6237\u7aef\u7684\u6570\u636e\u4e4b\u524d\u68c0\u67e5\u5f53\u524d\u53ef\u7528\u5185\u5b58\u7684\u5927\u5c0f\u3002\u4f46\u662f\uff0c\u6211\u4eec\u53d1\u73b0\u4e00\u4e9b\u5185\u5b58\u68c0\u67e5\u662f\u4e0d\u5b8c\u6574\u7684\u3002\u5728\u56fe4\u4e2d\u7684\u4f8b\u5b50\uff0cAndroid\u7684\u201cwindow\u201d\u7cfb\u7edf\u670d\u52a1\u671f\u671b\u6bcf\u4e2a\u5ba2\u6237\u7aef\u5e94\u7528\u7a0b\u5e8f\u53ea\u6ce8\u518c\u4e00\u4e2aSession\u5bf9\u8c61\u6765\u4e0e\u7a97\u53e3\u7ba1\u7406\u5668\u4ea4\u4e92\uff0c\u7136\u800c\u6076\u610f\u5e94\u7528\u7a0b\u5e8f\u53ef\u4ee5\u6ce8\u518c\u4efb\u610f\u591a\u7684Session\u5bf9\u8c61\u3002\u7531\u4e8e\u7f3a\u4e4f\u5fc5\u8981\u7684\u68c0\u67e5\uff0c\u8fd9\u6700\u7ec8\u4f1a\u8017\u5c3d\u670d\u52a1\u5668\u5185\u5b58\u8d44\u6e90\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6b64\u5916\uff0cAndroid\u8fdb\u7a0b\u95f4\u901a\u4fe1\u5b58\u5728\u8bbe\u8ba1\u7f3a\u9677\uff0c\u8fd9\u7ed9\u670d\u52a1\u7aef\u8fdb\u7a0b\u6267\u884c\u5185\u5b58\u68c0\u67e5\u5e26\u6765\u4e86\u6311\u6218\u3002\u4f8b\u5982\uff0c\u56fe5\u5c55\u793a\u4e86Android \u8fdb\u7a0b\u95f4\u901a\u4fe1\u673a\u5236\u63d0\u4f9b\u7684\u4e24\u4e2a\u53cd\u5e8f\u5217\u5316\u5ba2\u6237\u7aef\u6570\u636e\u7684\u63a5\u53e3\u3002\u4e0ecreateFloatArray()\u76f8\u6bd4\uff0ccreateStringArray()\u4e0d\u4f1a\u68c0\u67e5\u670d\u52a1\u5668\u7684\u53ef\u7528\u5185\u5b58\u662f\u5426\u8db3\u591f\u5b58\u50a8\u5ba2\u6237\u7aef\u6570\u636e\u3002\u4e3a\u4e86\u6267\u884c\u8fd9\u6837\u7684\u5185\u5b58\u5927\u5c0f\u68c0\u67e5\uff0c\u670d\u52a1\u7aef\u8fdb\u7a0b\u9700\u8981\u77e5\u9053\u5ba2\u6237\u7aef\u6570\u636e\u5c06\u8981\u6d88\u8017\u7684\u5185\u5b58\u7684\u786e\u5207\u5927\u5c0f\u3002\u5bf9\u4e8ecreateStringArray()\uff0c\u670d\u52a1\u7aef\u8fdb\u7a0b\u9700\u8981\u77e5\u9053\u6570\u7ec4\u957f\u5ea6(\u5373\u7b2c2\u884c\u4e2d\u7684N)\u548c\u6bcf\u4e2ajava.lang.String\u5bf9\u8c61\u6240\u5360\u7528\u7684\u5185\u5b58\u5927\u5c0f\u3002\u4e0d\u5e78\u7684\u662f\uff0c\u6bcf\u4e2ajava.lang.String\u5bf9\u8c61\u7684\u5185\u5b58\u5927\u5c0f\u53d6\u51b3\u4e8e\u5176\u4e2d\u7684\u5b57\u7b26\u6570\uff0c\u8fd9\u662f\u672a\u5b9a\u4e49\u7684\uff0c\u53ef\u4ee5\u662f\u4efb\u610f\u5927\u5c0f\u3002\u56e0\u6b64\uff0c\u670d\u52a1\u7aef\u8fdb\u7a0b\u65e0\u6cd5\u8ba1\u7b97\u5b57\u7b26\u4e32\u6570\u7ec4\u6240\u9700\u7684\u786e\u5207\u5185\u5b58\u5927\u5c0f\uff0c\u4ece\u800c\u65e0\u6cd5\u4e0e\u53ef\u7528\u5185\u5b58\u8fdb\u884c\u6bd4\u8f83\u3002\u8fd9\u4e2a\u7f3a\u9677\u53ef\u4ee5\u88ab\u653b\u51fb\u8005\u6ee5\u7528\u6765\u653b\u51fb\u5927\u91cf\u7684\u516c\u5171\u63a5\u53e3\uff0c\u751a\u81f3\u662f\u7279\u6743\u63a5\u53e3\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u540e\uff0c\u5f3a\u5236\u7684\u5185\u5b58\u5927\u5c0f\u68c0\u67e5\u5bf9\u6240\u6709\u5e94\u7528\u7a0b\u5e8f\u6765\u8bf4\u90fd\u662f\u4e00\u628a\u53cc\u5203\u5251\uff0c\u4e5f\u53ef\u80fd\u88ab\u653b\u51fb\u8005\u6ee5\u7528\u6765\u53d1\u8d77DoS\u653b\u51fb\u3002\u4f8b\u5982\uff0c\u867d\u7136\u5728createFloatArray()\u4e2d\u68c0\u67e5\u670d\u52a1\u7aef\u8fdb\u7a0b\u5f53\u524d\u53ef\u7528\u5185\u5b58(dataAvail())\u53ef\u4ee5\u9632\u6b62\u670d\u52a1\u5668\u5185\u5b58\u8017\u5c3d\uff0c\u4f46\u5982\u679c\u670d\u52a1\u7aef\u8fdb\u7a0b\u6ca1\u6709\u8db3\u591f\u7684\u53ef\u7528\u5185\u5b58\uff0c\u5b83\u5c06\u62d2\u7edd\u6240\u6709\u5e94\u7528\u7a0b\u5e8f\u5411\u5176\u53d1\u9001\u7684\u6570\u636e\u3002\u56e0\u6b64\uff0c\u5982\u679c\u6076\u610f\u5e94\u7528\u7a0b\u5e8f\u9996\u5148\u5728\u670d\u52a1\u7aef\u8fdb\u7a0b\u4e2d\u5b58\u50a8\u4e86\u5927\u91cf\u6570\u636e\uff0c\u4ec5\u6bd4\u5185\u5b58\u4e0a\u9650\u5c0f\u4e00\u4e9b\uff0c\u90a3\u4e48\u5176\u4ed6\u5e94\u7528\u7a0b\u5e8f\u5c06\u65e0\u6cd5\u6b63\u5e38\u4f7f\u7528\u7cfb\u7edf\u670d\u52a1\u3002&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"937\" height=\"326\" src=\"https:\/\/www.inforsec.org\/wp\/wp-content\/uploads\/2023\/04\/60.png\" alt=\"\" class=\"wp-image-5914\" srcset=\"http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2023\/04\/60.png 937w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2023\/04\/60-300x104.png 300w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2023\/04\/60-768x267.png 768w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2023\/04\/60-150x52.png 150w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2023\/04\/60-250x87.png 250w\" sizes=\"auto, (max-width: 937px) 100vw, 937px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u56fe4\uff1aAndroid\u7cfb\u7edf\u6846\u67b6\u5f00\u53d1\u4eba\u5458\u5e0c\u671b\u6bcf\u4e2a\u5ba2\u6237\u7aef\u8fdb\u7a0b\u6709\u4e00\u4e2a\u4f1a\u8bdd\u3002<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"994\" height=\"434\" src=\"https:\/\/www.inforsec.org\/wp\/wp-content\/uploads\/2023\/04\/61.png\" alt=\"\" class=\"wp-image-5915\" srcset=\"http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2023\/04\/61.png 994w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2023\/04\/61-300x131.png 300w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2023\/04\/61-768x335.png 768w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2023\/04\/61-150x65.png 150w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2023\/04\/61-250x109.png 250w\" sizes=\"auto, (max-width: 994px) 100vw, 994px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u56fe5\uff1acreateStringArray() vs. createFloatArray()<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>&nbsp;\uff08\u672c\u6587\u53ea\u9009\u53d6\u539f\u6587\u4e2d\u90e8\u5206\u7ae0\u8282\uff0c\u66f4\u591a\u7cbe\u5f69\u5185\u5bb9\u656c\u8bf7\u671f\u5f85\u540e\u7eed\u51fa\u7248\u7684\u300a\u7f51\u7edc\u5b89\u5168\u7814\u7a76\u8fdb\u5c55\u300b\uff09<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u4f5c\u8005\u7b80\u4ecb<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5ec9\u8f72\u8f72\uff0c\u590d\u65e6\u5927\u5b66\u8ba1\u7b97\u673a\u79d1\u5b66\u6280\u672f\u5b66\u9662\uff0c\u7cfb\u7edf\u8f6f\u4ef6\u4e0e\u5b89\u5168\u5b9e\u9a8c\u5ba4\u5728\u8bfb\u535a\u58eb\u751f\uff0c\u7814\u7a76\u65b9\u5411\u4e3a\u6f0f\u6d1e\u6316\u6398\u4e0e\u5229\u7528\u6280\u672f\u7814\u7a76\uff0c\u76ee\u524d\u4e3b\u8981\u5173\u6ce8\u79fb\u52a8\u5b89\u5168\uff0c\u4e91\u670d\u52a1\u5b89\u5168\u3002\u5df2\u5728IEEE S&amp;P\u4e0a\u53d1\u8868\u591a\u7bc7\u6210\u679c\uff0c\u5e76\u83b7\u5f97\u4f17\u591a\u5382\u5546\u548c\u7ec4\u7ec7\u7684\u8ba4\u53ef\u4e0e\u81f4\u8c22\uff0c\u5305\u62ecGoogle\uff0cHUAWEI\uff0cVIVO\uff0cXiaoMi\uff0cTencent\u7b49\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8fd1\u5e74\u6765\uff0c\u5b89\u5353\u7cfb\u7edf\u670d\u52a1\u7684\u5b89\u5168\u6027\u53d7\u5230\u8d8a\u6765\u8d8a\u591a\u7684\u5173\u6ce8\u3002\u7136\u800c\uff0c\u76f4\u5230\u73b0\u5728\uff0c\u5b83\u4eec\u7684\u6570\u636e\u5b58\u50a8\u8fc7\u7a0b\u5f88\u5c11\u88ab\u7406\u89e3\u548c\u5206\u6790\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u9996\u6b21\u5bf9\u5b89\u5353\u7cfb\u7edf\u670d\u52a1\u7684\u6570\u636e\u5b58\u50a8\u8fc7\u7a0b\u8fdb\u884c\u4e86\u7cfb\u7edf\u6027\u7684\u5b89\u5168\u5206\u6790\u3002\u5e76\u53d1\u73b0\u4e86\u51e0\u79cd\u4e0d\u540c\u7c7b\u578b\u7684\u5173\u952e\u6570\u636e\u5b58\u50a8\u64cd\u4f5c\u548c\u6307\u4ee4\uff0c\u5b83\u4eec\u7ecf\u5e38\u88ab\u4f7f\u7528\uff0c\u4f46\u5728\u7cfb\u7edf\u670d\u52a1\u5185\u90e8\u5374\u6ca1\u6709\u5f97\u5230\u4fdd\u62a4\u3002 <a class=\"continue-reading-link\" href=\"http:\/\/202.112.238.40\/wp\/?p=5909\"> Continue reading <span class=\"meta-nav\">&rarr; <\/span><\/a><\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-5909","post","type-post","status-publish","format-standard","hentry","category-research"],"_links":{"self":[{"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=\/wp\/v2\/posts\/5909","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5909"}],"version-history":[{"count":2,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=\/wp\/v2\/posts\/5909\/revisions"}],"predecessor-version":[{"id":5919,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=\/wp\/v2\/posts\/5909\/revisions\/5919"}],"wp:attachment":[{"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5909"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5909"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5909"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}