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社区首页 >问答首页 >如何解释AddressSanitizer输出？

问如何解释AddressSanitizer输出？
EN

Stack Overflow用户
提问于 2016-06-22 23:46:33
回答 2查看 4.8K关注 0票数 4

AddressSanitizer似乎检测到了heap-buffer-overflow，但输出并不像here那样清晰。

如何获取发生溢出的行？

我如何解释这个结果呢？

代码语言：javascript
复制
[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
c++
memory-leaks
address-sanitizer
EN

回答 2

Stack Overflow用户

发布于 2016-06-23 00:14:11

听起来您需要在执行程序之前设置一些环境变量，以便获得可读的输出:即ASAN_OPTIONS、symbolize和ASAN_SYMBOLIZER_PATH (假设您有一个合适的符号器)。所以就像这样：

代码语言：javascript
复制
ASAN_OPTIONS=symbolize=1 ASAN_SYMBOLIZER_PATH=$(shell which llvm-symbolizer) ./a.out

本文来自documentation here

票数 3
EN

Stack Overflow用户

发布于 2019-11-29 04:14:12

看起来您还将ANSI颜色代码复制到您的输出中。下面是一个更清晰的版本：

代码语言：javascript
复制
==27467== ERROR: AddressSanitizer: heap-buffer-overflow on address 0x60a4000b2a80 at pc 0x40730e bp 0x7fffffffcf10 sp 0x7fffffffcf08
WRITE of size 8 at 0x60a4000b2a80 thread T0
    #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)
0x60a4000b2a80 is located 0 bytes to the right of 74368-byte region [0x60a4000a0800,0x60a4000b2a80)
allocated by thread T0 here:
    #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: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0c150000e510: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0c150000e520: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0c150000e530: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0c150000e540: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
=>0x0c150000e550:[fa]fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c150000e560: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c150000e570: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c150000e580: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c150000e590: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c150000e5a0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
Shadow byte legend (one shadow byte represents 8 application bytes):
  Addressable:           00
  Partially addressable: 01 02 03 04 05 06 07 
  Heap left redzone:     fa
  Heap righ redzone:     fb
  Freed Heap region:     fd
  Stack left redzone:    f1
  Stack mid redzone:     f2
  Stack right redzone:   f3
  Stack partial redzone: f4
  Stack after return:    f5
  Stack use after scope: f8
  Global redzone:        f9
  Global init order:     f6
  Poisoned by user:      f7
  ASan internal:         fe
==27467== ABORTING

要获得行号，必须指定到llvm-symbolizer二进制文件的路径，方法是使其可通过PATH环境变量访问，或者直接在ASAN_SYMBOLIZER_PATH环境变量中指定其路径名。

票数 1
EN
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：

https://stackoverflow.com/questions/37972807

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