Wie interpretiere ich die AddressSanitizer-Ausgabe?

Scheint AddressSanitizer entdeckt heap-buffer-overflow aber Ausgabe nicht so klar wie zum Beispiel here.Wie interpretiere ich die AddressSanitizer-Ausgabe?

Wie kann ich eine Linie bekommen, bei der ein Überlauf aufgetreten ist?

Wie kann ich dieses Ergebnis interpretieren?

[1m[31m==27467== ERROR: AddressSanitizer: heap-buffer-overflow on address 0x60a4000b2a80 at pc 0x40730e bp 0x7fffffffcf10 sp 0x7fffffffcf08 
[1m[0m[1m[34mWRITE of size 8 at 0x60a4000b2a80 thread T0[1m[0m 
    #0 0x40730d (/home/user/Desktop/ImageRegistration/ImageRegistration+0x40730d) 
    #1 0x406624 (/home/user/Desktop/ImageRegistration/ImageRegistration+0x406624) 
    #2 0x40211b (/home/user/Desktop/ImageRegistration/ImageRegistration+0x40211b) 
    #3 0x402bf3 (/home/user/Desktop/ImageRegistration/ImageRegistration+0x402bf3) 
    #4 0x7ffff3866f44 (/lib/x86_64-linux-gnu/libc-2.19.so+0x21f44) 
    #5 0x401d78 (/home/user/Desktop/ImageRegistration/ImageRegistration+0x401d78) 
[1m[32m0x60a4000b2a80 is located 0 bytes to the right of 74368-byte region [0x60a4000a0800,0x60a4000b2a80) 
[1m[0m[1m[35mallocated by thread T0 here:[1m[0m 
    #0 0x7ffff413941a (/usr/lib/x86_64-linux-gnu/libasan.so.0.0.0+0x1541a) 
    #1 0x7ffff7b3bfb7 (/home/user/libs/opencv-2.4.13_QT/lib/libopencv_core.so.2.4.13+0x203fb7) 
Shadow bytes around the buggy address: 
    0x0c150000e500: [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m 
    0x0c150000e510: [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m 
    0x0c150000e520: [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m 
    0x0c150000e530: [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m 
    0x0c150000e540: [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m [1m[0m00[1m[0m 
=>0x0c150000e550:[[1m[31mfa[1m[0m][1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m 
    0x0c150000e560: [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m 
    0x0c150000e570: [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m 
    0x0c150000e580: [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m 
    0x0c150000e590: [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m 
    0x0c150000e5a0: [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m [1m[31mfa[1m[0m 
Shadow byte legend (one shadow byte represents 8 application bytes): 
    Addressable:   [1m[0m00[1m[0m 
    Partially addressable: [1m[0m01[1m[0m [1m[0m02[1m[0m [1m[0m03[1m[0m [1m[0m04[1m[0m [1m[0m05[1m[0m [1m[0m06[1m[0m [1m[0m07[1m[0m 
    Heap left redzone:  [1m[31mfa[1m[0m 
    Heap righ redzone:  [1m[31mfb[1m[0m 
    Freed Heap region:  [1m[35mfd[1m[0m 
    Stack left redzone: [1m[31mf1[1m[0m 
    Stack mid redzone:  [1m[31mf2[1m[0m 
    Stack right redzone: [1m[31mf3[1m[0m 
    Stack partial redzone: [1m[31mf4[1m[0m 
    Stack after return: [1m[35mf5[1m[0m 
    Stack use after scope: [1m[35mf8[1m[0m 
    Global redzone:  [1m[31mf9[1m[0m 
    Global init order:  [1m[36mf6[1m[0m 
    Poisoned by user:  [1m[34mf7[1m[0m 
    ASan internal:   [1m[33mfe[1m[0m 
==27467== ABORTING

Quelle

2016-06-22 mrgloom

wie Ihr Code sieht (oder Code jemandes in Ihrem Programm ausgeführt wird) geschrieben 8 Bytes, vorbei am Ende eines dynamischen Speicherpuffer zugeordnet. –

Sie könnten etwas besser lesen, wenn Sie Ihre Binärdatei mit aktivierten Debug-Symbolen kompilieren ('-g') – Smeeheey

@Smeehey Ich habe es bereits mit' -O0 -g' gebaut – mrgloom

Es klingt wie Sie einige Umgebungsvariablen setzen müssen, bevor Ihr Programm, um die Ausführung lesbare Ausgabe zu erhalten: nämlich ASAN_OPTIONS, symbolize und ASAN_SYMBOLIZER_PATH (die Sie haben einen geeigneten Symbolizer annimmt). So etwas wie folgt aus:

ASAN_OPTIONS=symbolize=1 ASAN_SYMBOLIZER_PATH=$(shell which llvm-symbolizer) ./a.out

Diese aus der Dokumentation ist here

Quelle

2016-06-22 16:14:11 Smeeheey

Wie interpretiere ich die AddressSanitizer-Ausgabe?

Antwort

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