# .\/a.out\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 [\/root\/C]\r\nhello flow\r\nzsh: segmentation fault\u00a0 .\/a.out<\/pre>\n\u30bb\u30b0\u30e1\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u30a8\u30e9\u30fc\u304c\u51fa\u3066\u3044\u308b\u3082\u306e\u306e\u3001\u547c\u3073\u51fa\u3057\u3066\u3044\u306a\u3044messages\u95a2\u6570\u306e\u30a2\u30c9\u30ec\u30b9\u306b\u306a\u3063\u3066\u5b9f\u884c\u3055\u308c\u3066\u3044\u308b\u3088\u3046\u3067\u3059\u3002
\n\u539f\u59cb\u7684\u3067\u3059\u304c\u3001\u5b9f\u884c\u3055\u308c\u306a\u3044\u306f\u305a\u306e\u95a2\u6570\u304c\u5b9f\u884c\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u306f\u5206\u304b\u308a\u307e\u3059\u306d\u3002
\n\u5b9f\u969b\u306b\u30a8\u30f3\u30bf\u30fc\u30ad\u30fc\u3092\u305f\u305f\u3044\u3066\u8868\u793a\u3055\u308c\u305f\u6642\u306f\u3061\u3087\u3063\u3068\u3073\u3063\u304f\u308a\u3057\u307e\u3057\u305f\u3002<\/p>\n
\u3067\u306f\u3001\u4e2d\u306e\u69d8\u5b50\u3092\u898b\u3066\u307f\u3088\u3046\u3002
\n\u307e\u305a\u306f\u3055\u3063\u304d\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u306b\u82e5\u5e72\u306e\u66f8\u304d\u52a0\u3048\u3092\u3057\u3066\u3001\u9818\u57df\u9055\u53cd\u3057\u3066\u3044\u308b\u5909\u6570a[6]\u306e\u66f8\u304d\u63db\u3048\u524d\u306e\u30a2\u30c9\u30ec\u30b9\u3068\u66f8\u304d\u63db\u3048\u5f8c\u306e\u30a2\u30c9\u30ec\u30b9\u3092\u898b\u3066\u307f\u307e\u3059\u3002<\/p>\n
\u53c2\u8003\u30b5\u30a4\u30c8\u306b\u7fd2\u3063\u3066\u3001hallo\u3000\u3092\u8868\u793a\u3059\u308b\u3082\u306e\u304b\u3089\u30b7\u30a7\u30eb\u3092\u8d77\u52d5\u3059\u308b\u30d7\u30ed\u30b0\u30e9\u30e0\u306b\u5909\u66f4\u3057\u3066\u307f\u307e\u3057\u305f\u3002\uff08\u30b7\u30a7\u30eb\u30b3\u30fc\u30c9\u306f\u3064\u304b\u3063\u3066\u307e\u305b\u3093\u30fb\u30fb\u30fb\u3068\u3044\u3046\u304b\u52d5\u304d\u307e\u305b\u3093\u3067\u3057\u305f\u3002\uff09<\/p>\n
\u00a0 1 #include <stdio.h>\r\n\u00a0 2\r\n\u00a0 3 void messages(void)\r\n\u00a0 4 {\r\n\u00a0 5\u00a0\u00a0\u00a0\u00a0 system(\"\/bin\/sh\");\r\n\u00a0 6\u00a0\u00a0\u00a0\u00a0 putchar('\\n');\r\n\u00a0 7 }\r\n\u00a0 8\r\n\u00a0 9 void func(void)\r\n\u00a010 {\r\n\u00a011 int a[1];\r\n\u00a012 printf(\"%p\\n\", a[6]);\r\n\u00a013\r\n\u00a014 a[6] = (int)messages;\r\n\u00a015\r\n\u00a016 printf(\"%p\\n\", a[6]);\r\n\u00a017\r\n\u00a018 }\r\n\u00a019\r\n\u00a020 int main(void)\r\n\u00a021 {\r\n\u00a022\r\n\u00a023 func();\r\n\u00a024\r\n\u00a025\r\n\u00a026 return(0);\r\n\u00a027\r\n\u00a028 }<\/pre>\n\u5b9f\u884c\u7d50\u679c<\/p>\n
[takeken@testserver_centos ~]$ .\/stack2\r\n0x4005bc\u3000\u3000\u2190\u66f8\u304d\u63db\u3048\u524d\r\n0x400554\u3000\u3000\u2190\u66f8\u304d\u63db\u3048\u5f8c\r\nsh-4.1$<\/pre>\n\u305d\u308c\u3067\u306f\u3001\u3053\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3092objdump -d\u3000\u3067\u9006\u30a2\u30bb\u30f3\u30d6\u30ea\u3057\u3066\u307f\u307e\u3059\u3002
\n\u5b9f\u969b\u306f\u3082\u3063\u3068\u3082\u3063\u3068\u9577\u304f\u3066\u3001\u5fc5\u8981\u306a\u90e8\u5206\u3060\u3051\u3092\u8f09\u305b\u3066\u3044\u307e\u3059\u3002<\/p>\n
[takeken@testserver_centos ~]$ objdump -d stack2 | less\r\n\r\nstack2:\u00a0\u00a0\u00a0\u00a0 file format elf64-x86-64\r\n\r\n\r\nDisassembly of section .init:\r\n\r\n0000000000400408 <_init>:\r\n\u00a0 400408:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 48 83 ec 08\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 sub\u00a0\u00a0\u00a0 $0x8,%rsp\r\n\u00a0 40040c:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 e8 8b 00 00 00\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 callq\u00a0 40049c <call_gmon_start>\r\n\u00a0 400411:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 e8 1a 01 00 00\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 callq\u00a0 400530 <frame_dummy>\r\n\u00a0 400416:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 e8 55 02 00 00\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 callq\u00a0 400670 <__do_global_ctors_aux>\r\n\u00a0 40041b:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 48 83 c4 08\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 add\u00a0\u00a0\u00a0 $0x8,%rsp\r\n\u00a0 40041f:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 c3\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 retq\r\n\r\n\r\n\r\n0000000000400554 <messages>:\r\n\u00a0 400554:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 55\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 push\u00a0\u00a0 %rbp\r\n\u00a0 400555:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 48 89 e5\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 mov\u00a0\u00a0\u00a0 %rsp,%rbp\r\n\u00a0 400558:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 bf c8 06 40 00\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 mov\u00a0\u00a0\u00a0 $0x4006c8,%edi\r\n\u00a0 40055d:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 b8 00 00 00 00\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 mov\u00a0\u00a0\u00a0 $0x0,%eax\r\n\u00a0 400562:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 e8 f9 fe ff ff\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 callq\u00a0 400460 <system@plt>\r\n\u00a0 400567:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 bf 0a 00 00 00\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 mov\u00a0\u00a0\u00a0 $0xa,%edi\r\n\u00a0 40056c:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 e8 cf fe ff ff\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 callq\u00a0 400440 <putchar@plt>\r\n\u00a0 400571:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 c9\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 leaveq\r\n\u00a0 400572:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 c3\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 retq\r\n\r\n0000000000400573 <func>:\r\n\u00a0 400573:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 55\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 push\u00a0\u00a0 %rbp\r\n\u00a0 400574:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 48 89 e5\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 mov\u00a0\u00a0\u00a0 %rsp,%rbp\r\n\u00a0 400577:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 48 83 ec 10\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 sub\u00a0\u00a0\u00a0 $0x10,%rsp\r\n\r\n\r\n\u00a0 4005b2:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 c3\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 retq\r\n\r\n00000000004005b3 <main>:\r\n\u00a0 4005b3:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 55\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 push\u00a0\u00a0 %rbp\r\n\u00a0 4005b4:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 48 89 e5\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 mov\u00a0\u00a0\u00a0 %rsp,%rbp\r\n\u00a0 4005b7:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 e8 b7 ff ff ff\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 callq\u00a0 400573 <func>\r\n\u00a0 4005bc:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 b8 00 00 00 00\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 mov\u00a0\u00a0\u00a0 $0x0,%eax\r\n\u00a0 4005c1:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 c9\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 leaveq\r\n\u00a0 4005c2:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 c3\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 retq\r\n\u00a0 4005c3:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 90\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 nop<\/pre>\n\u66f8\u304d\u63db\u3048\u524d\u306e\u30a2\u30c9\u30ec\u30b9\u306f\u3001main\u95a2\u6570\u5185\u306efunc\u3092\u547c\u3073\u51fa\u3057\u305f\u30b9\u30bf\u30c3\u30af\u306e\u4e0b\u306b\u3042\u308a\u307e\u3059\u306d\u3002
\n\u66f8\u304d\u63db\u3048\u5f8c\u306fmessages\u95a2\u6570\u306e\u30a2\u30c9\u30ec\u30b9\u306b\u306a\u3063\u3066\u3044\u308b\u306e\u304c\u5206\u304b\u308a\u307e\u3059\u3002
\n\u5148\u5165\u308c\u5148\u51fa\u3057\u3068\u304b\u5b66\u6821\u3067\u7fd2\u3063\u305f\u6c17\u304c\u3057\u307e\u3059\u3051\u3069\u3001\u3059\u3063\u304b\u308a\u629c\u3051\u3066\u307e\u3059\u306d\u3002<\/p>\n
\u3068\u8a00\u3046\u611f\u3058\u3067\u3001\u672c\u6765\u306a\u3089\u3070main\u95a2\u6570\u306b\u3082\u3069\u3063\u3066\u51e6\u7406\u3055\u308c\u308b\u306f\u305a\u304c\u3001\u30a2\u30c9\u30ec\u30b9\u304cmessages\u95a2\u6570\u306e\u30a2\u30c9\u30ec\u30b9\u306a\u306e\u3067\u3001messages\u3092\u5b9f\u884c\u3057\u3066\u3057\u307e\u3063\u3066\u307e\u3059\u306d\u3002<\/p>\n
\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u306f\u30d7\u30ed\u30b0\u30e9\u30e0\u901a\u308a\u306b\u52d5\u3044\u3066\u3044\u308b\u306e\u3067\u3001\u3057\u3066\u3057\u307e\u3063\u3066\u3044\u308b<\/span>\u3068\u3044\u3046\u8a00\u3044\u65b9\u306f\u304a\u304b\u3057\u3044\u3059\u306d\u3002<\/p>\n\u3061\u306a\u307f\u306b\u3001\u30b7\u30a7\u30eb\u30b3\u30fc\u30c8\u306b\u95a2\u3057\u3066\u306f<\/p>\n
sysctl -w kernel.exec-shield=0<\/pre>\n\u306b\u3057\u3066\u3082\u3001\u52d5\u4f5c\u305b\u305a\u3002<\/p>\n
\u30b7\u30a7\u30eb\u30b3\u30fc\u30c9\u3067\u306f\u306a\u304f\u3001\u305d\u306e\u307e\u307eexecl\u3067\/bin\/bash\u3092\u52d5\u304b\u3057\u3066\u3082\u3001\u5b9f\u884c\u30d5\u30a1\u30a4\u30eb\u306bsetuid\u306e\u30d5\u30e9\u30b0\u3092\u7acb\u3066\u3066\u3082root\u6a29\u9650\u3092\u4e0d\u6b63\u306b\u4f7f\u3046\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3067\u3057\u305f\u3002<\/p>\n
<\/p>\n
\u3068\u3001\u3053\u3053\u307e\u3067\u30c0\u30c0\u30c0\uff01\u3063\u3068\u9032\u3093\u3060\u308f\u3051\u3067\u3059\u304c\u3001\u843d\u3061\u7740\u3044\u3066\u307f\u308c\u3070\u30ea\u30bf\u30fc\u30f3\u30a2\u30c9\u30ec\u30b9\u306f\u30eb\u30fc\u30d7\u3067\u63a2\u305b\u3070\u3044\u3044\u3093\u3058\u3083\u306a\u3044\u304b\u3002
\n\u3082\u3046\u3001\u30d0\u30ab\u304b\u3068\u30a2\u30db\u304b\u3068\u3002<\/p>\n
\u5b9f\u884c\u7d50\u679c<\/p>\n
HELLO WORLD\r\na[0] : address = (nil)\r\na[1] : address = (nil)\r\na[2] : address = 0x400420\r\na[3] : address = 0x3\r\na[4] : address = 0xafa14110\r\na[5] : address = 0x7fff\r\na[6] : address = 0x400564\r\na[7] : address = (nil)\r\na[8] : address = (nil)\r\na[9] : address = (nil)\r\na[10] : address = 0x71b26d1d\r\na[11] : address = 0x7f4c\r\na[12] : address = (nil)\r\na[13] : address = (nil)\r\na[14] : address = 0xafa141f8\r\na[15] : address = 0x7fff\r\na[16] : address = (nil)\r\n\r\n\u30fc\u30fc\u7701\u7565\u30fc\u30fc\r\n\r\na[87] : address = 0x7fff\r\na[88] : address = 0xafa14f5c\r\na[89] : address = 0x7fff\r\na[90] : address = 0xafa14f6d\r\na[91] : address = 0x7fff\r\na[92] : address = 0xafa14f84\r\na[93] : address = 0x7fff\r\na[94] : address = 0xafa14f8c\r\na[95] : address = 0x7fff\r\na[96] : address = 0xafa14f9f\r\na[97] : address = 0x7fff\r\na[98] : address = 0xafa14faf\r\na[99] : address = 0x7fff<\/pre>\n\u8996\u91ce\u304c\u305b\u307e\u304f\u306a\u3063\u3066\u305f\u8a3c\u62e0\u3067\u3059\u308f\u3002\u53cd\u7701\u3002
\n\u3044\u3063\u305f\u3044\u306a\u3093\u306e\u30a2\u30c9\u30ec\u30b9\u304b\u5206\u304b\u3089\u306a\u3044\u306e\u3067\u3001\u4f55\u304b\u8d77\u304d\u305d\u3046\u306a\u30a2\u30c9\u30ec\u30b9\u3092\u3064\u3064\u3044\u3066\u307f\u308b\u3002<\/p>\n
\u4ee5\u4e0b\u3064\u3064\u304f\u5019\u88dc\u3002<\/p>\n
\u00a0 400444:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 e8 c7 ff ff ff\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 callq\u00a0 400410 <__libc_start_main@plt>\r\n\u00a0 400449:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 f4\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 hlt\r\na[58] : address = 0x400449\r\n\r\n000000000040055b <main>:\r\n\u00a0 40055b:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 55\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 push\u00a0\u00a0 %rbp\r\n\r\na[18] : address = 0x40055b<\/pre>\n\u5b9f\u884c\u3057\u3066\u307f\u305f\u7d50\u679c\u3001\u306a\u306b\u3082\u8d77\u3053\u3089\u306a\u3044\u3002
\n\u3075\u30fc\u3093\u3001\u3068\u3044\u3046\u7d50\u679c\u3067\u3059\u304c\u3001\u3060\u3044\u305f\u3044\u30bb\u30b0\u30e1\u30f3\u30c8\u30a8\u30e9\u30fc\u304c\u8d77\u3053\u308b\u4e8b\u3092\u3084\u3063\u3066\u308b\u306f\u305a\u306a\u306e\u3067\u3001\u306a\u306b\u3082\u8d77\u304d\u306a\u3044\u4e8b\u3082\u304a\u304b\u3057\u3044\u306e\u3067\u3001\u304a\u304b\u3057\u3044\u3053\u3068\u306f\u8d77\u3053\u3063\u3066\u308b\u8a33\u3067\u3059\u306d\u3002
\n\u3053\u306e\u30a2\u30c9\u30ec\u30b9\u304c\u30e1\u30e2\u30ea\u30ea\u30fc\u30b8\u30e7\u30f3\u304b\u3057\u3089\uff1f<\/p>\n
\u3084\u3063\u3071\u308a\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u3092\u3059\u308b\u306b\u306f\u30a2\u30bb\u30f3\u30d6\u30e9\u3082\u3084\u3089\u306a\u3044\u3068\u3060\u3081\u304b\u306a\u3042\u3002<\/p>\n
\u306a\u3093\u3068\u306a\u304fhttpd\u3092\u9006\u30a2\u30bb\u30f3\u30d6\u30ea\u3057\u3066\u307f\u307e\u3057\u305f\u3002<\/p>\n
\u00a0\u00a0 35008:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 48 83 3d 80 24 22 00\u00a0\u00a0\u00a0 cmpq\u00a0\u00a0 $0x0,0x222480(%rip)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 # 257490 <ap_max_mem_free+0x20>\r\n\u00a0\u00a0 350ac:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 48 83 3d dc 23 22 00\u00a0\u00a0\u00a0 cmpq\u00a0\u00a0 $0x0,0x2223dc(%rip)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 # 257490 <ap_max_mem_free+0x20>\r\n\u00a0\u00a0 3514e:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 c7 07 00 00 00 00\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 movl\u00a0\u00a0 $0x0,(%rdi)\r\n\u00a0\u00a0 35500:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 c7 05 26 0b 22 00 00\u00a0\u00a0\u00a0 movl\u00a0\u00a0 $0x0,0x220b26(%rip)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 # 256030 <ap_accept_lock_mech>\r\n\u00a0\u00a0 35cc8:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 c7 05 b6 17 22 00 00\u00a0\u00a0\u00a0 movl\u00a0\u00a0 $0x0,0x2217b6(%rip)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 # 257488 <ap_max_mem_free+0x18>\r\n\u00a0\u00a0 35f42:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 c7 04 18 00 00 00 00\u00a0\u00a0\u00a0 movl\u00a0\u00a0 $0x0,(%rax,%rbx,1)\r\n\u00a0\u00a0 35fc2:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 c7 44 24 20 00 00 00\u00a0\u00a0\u00a0 movl\u00a0\u00a0 $0x0,0x20(%rsp)<\/pre>\n\u3082\u3046\u3001\u306a\u3093\u306e\u3053\u3063\u3061\u3083<\/span>\u3067\u3059\u3002<\/p>\n\u306a\u3093\u3058\u3083\u3053\u308a\u3083\u3063\u3066\u306e\u3082\u3042\u308a\u307e\u3057\u305f\u3051\u3069<\/p>\n
\u00a0 219f0:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 c7 05 ae 45 23 00 00\u00a0\u00a0\u00a0 movl\u00a0\u00a0 $0x0,0x2345ae(%rip)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 # 255fa8 <ap_hack_unixd_accept+0x8><\/pre>\n\u30b0\u30b0\u3063\u3066\u3082\u65e5\u672c\u8a9e\u306f\u306a\u304f\u3066\u3001\u30ea\u30f3\u30af\u5148\u3067\u4f55\u304c\u8d77\u304d\u308b\u304b\u5206\u304b\u3089\u306a\u3044\u306e\u3067\u3001\u3053\u308c\u4ee5\u4e0a\u9032\u3081\u307e\u305b\u3093\u3067\u3057\u305f\u3002
\n\u5b50\u4f9b\u306e\u3053\u308d\u306e\u6d77\u307f\u305f\u3044\u306a\u3082\u3093\u3067\u3059\u3002<\/p>\n
\u3046\u30fc\u3093\u3002<\/p>\n
\u3044\u307e\u306e\u3068\u3053\u308d\u306f\u3053\u3053\u307e\u3067\u3067\u3059\u306d\u3002
\n\u3067\u304d\u308b\u306a\u3089\u3082\u3063\u3068\u3044\u308d\u3044\u308d\u306a\u4e8b\u304c\u3057\u305f\u3044\u3067\u3059\u304c\u3002<\/p>\n
\u4f55\u6545\u30a2\u30bf\u30c3\u30af\u5074\u306e\u4e8b\u3092\u52c9\u5f37\u3057\u3066\u3044\u308b\u304b\u3068\u3044\u3046\u3068\u3001\u3044\u305f\u3061\u3054\u3063\u3053\u306e\u4e16\u754c\u306a\u306e\u3067\u3001\u30a2\u30bf\u30c3\u30af\u5074\u3092\u8ffd\u3044\u304b\u3051\u305f\u65b9\u304c\u5148\u982d\u306b\u8fd1\u3044\u3068\u601d\u3063\u305f\u3093\u3067\u3059\u3002<\/p>\n
\u3053\u3053\u3055\u3044\u304d\u3093\u306e3\u56de\u5206\u306e\u65e5\u8a18\u304f\u3089\u3044\u8106\u5f31\u6027\u95a2\u9023\u3092\u7d9a\u3051\u3066\u3044\u305f\u308f\u3051\u3067\u3059\u304c<\/p>\n
\u30fbroot\u6a29\u9650\u306e\u30d5\u30a1\u30a4\u30eb\u306b\u8106\u5f31\u6027\u306f\u53b3\u7981<\/p>\n
\u30fb\u30b9\u30af\u30ea\u30d7\u30c8\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u306b\u8106\u5f31\u6027\u306e\u3042\u308b\u95a2\u6570\u3084\u30b7\u30b9\u30c6\u30e0\u30b3\u30fc\u30eb\u306f\u4f7f\u308f\u306a\u3044\u4e8b<\/p>\n
\u30fb\u4e0d\u8981\u306a\u30c7\u30fc\u30e2\u30f3\u3001\u30b5\u30fc\u30d3\u30b9\u3092\u52d5\u304b\u3055\u306a\u3044\u3002<\/p>\n
\u30fb\u4e0d\u8981\u306a\u30dd\u30fc\u30c8\u3092\u958b\u3051\u306a\u3044\uff08\u2191\u3068\u540c\u3058\u3060\u3051\u3069\uff09<\/p>\n
\u30fb\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3092\u3059\u308b\u3002\u30d1\u30c3\u30c1\u3092\u3042\u3066\u308b\u3002\uff08\u30a2\u30d7\u30c7\u8a9e\u306e\u691c\u8a3c\u3082\u3057\u3066\u304a\u304f\uff09<\/p>\n
\u306a\u3069\u306a\u3069\u3002
\n\u3053\u3046\u3044\u3063\u305f\u3053\u3068\u306f\u57fa\u672c\u3060\u3051\u3069\u3001\u5b9f\u969b\u4f53\u9a13\u3057\u3066\u5fc5\u8981\u306a\u3053\u3068\u306f\u306a\u3093\u3060\u308d\u3046\u3068\u8003\u3048\u3066\u307f\u308b\u3068\u3001\u3084\u3063\u3071\u308a\u57fa\u672c\u3068\u540c\u3058\u3053\u3068\u3092\u601d\u3063\u305f\u308a\u3059\u308b\u308f\u3051\u3067\u3002
\n\u3060\u3051\u3069\u672c\u3067\u8aad\u3080\u3060\u3051\u3088\u308a\u3082\u3001\u3061\u3087\u3063\u3068\u4e00\u6bb5\u9ad8\u3044\u3068\u3053\u308d\u304b\u3089\u8003\u3048\u3089\u308c\u308b\u3093\u3058\u3083\u306a\u3044\u304b\u306a\u3041\u3068\u601d\u3046\u3002
\n\u5c0f\u5b66\u751f\u306e\u590f\u4f11\u307f\u306e\u5bbf\u984c\u307f\u305f\u3044\u306a\u611f\u60f3\u306b\u306a\u3063\u3066\u308b\u306a(\u7b11)<\/p>\n
\u3053\u306e\u6d41\u308c\u3067\u3044\u304f\u3068\u3001root\u3067\u52d5\u3044\u3066\u3044\u308bSQL\u306e\u8106\u5f31\u6027\u3084\u30a6\u30a7\u30d6\u30b5\u30fc\u30d0\u30fc\u306e\u8106\u5f31\u6027\u3068\u3044\u3063\u305f\u3088\u3046\u306a\u30b5\u30fc\u30d0\u30fc\u306e\u30df\u30c9\u30eb\u30a6\u30a7\u30a2\u306b\u76ee\u304c\u3044\u304f\u3068\u601d\u3046\u3093\u3060\u3051\u3069\u3001\u3053\u306e\u307e\u307e\u9032\u3093\u3067\u3057\u307e\u3046\u3068\u3001\u3053\u306a\u3044\u3060\u7acb\u3066\u305f\u4e88\u5b9a\u304b\u3089\u305a\u3093\u305a\u3093\u3050\u3044\u3050\u3044\u96e2\u308c\u3066\u884c\u3063\u3066\u3057\u307e\u3046\u306e\u3067\u3001\u307c\u3061\u307c\u3061TCP\/IP\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306b\u623b\u308a\u3064\u3064\u3001\u3084\u3063\u3071\u308a\u6c17\u306b\u306a\u308b\u3088\u3046\u3060\u3063\u305f\u3089\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u8106\u5f31\u6027\u306b\u624b\u3092\u3060\u3059\u304b\uff5e\u3002<\/p>\n
\u306a\u611f\u3058\u3067\u3059\u3002<\/p>\n
<\/p>\n