[Bug 8641] New: busybox can't be used with ASAN enabled

bugzilla at busybox.net bugzilla at busybox.net
Wed Feb 3 03:58:13 UTC 2016


            Bug ID: 8641
           Summary: busybox can't be used with ASAN enabled
           Product: Busybox
           Version: 1.22.x
          Hardware: All
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P5
         Component: Other
          Assignee: unassigned at busybox.net
          Reporter: fernando at null-life.com
                CC: busybox-cvs at busybox.net
  Target Milestone: ---

I'm trying to compile busybox with AdressSanitizer enabled in order to fuzz it,
however after compiling it can't start and it complains about a posible stack
buffer overflow. I'm using Kali Linux and got the source from apt-get source.

root at kali:~/busybox-1.22.0# ./busybox_unstripped 
==20849==ERROR: AddressSanitizer: stack-buffer-overflow on address 0xbffff374
at pc 0x0807cdd9 bp 0xbffff2bc sp 0xbffff2b0
WRITE of size 4 at 0xbffff374 thread T0
    #0 0x807cdd8 in get_terminal_width_height libbb/xfuncs.c:269

Address 0xbffff374 is located in stack of thread T0==20849==AddressSanitizer
CHECK failed: ../../../../src/libsanitizer/asan/asan_thread.cc:231 "((ptr[0] ==
kCurrentStackFrameMagic)) != (0)" (0x0, 0x0)
    #0 0xb7b064ec  (/usr/lib/i386-linux-gnu/libasan.so.2+0x9a4ec)
    #1 0xb7b0b3b9 in __sanitizer::CheckFailed(char const*, int, char const*,
unsigned long long, unsigned long long)
    #2 0xb7b09195  (/usr/lib/i386-linux-gnu/libasan.so.2+0x9d195)
    #3 0xb7b034a6  (/usr/lib/i386-linux-gnu/libasan.so.2+0x974a6)
    #4 0xb7b03a89  (/usr/lib/i386-linux-gnu/libasan.so.2+0x97a89)
    #5 0xb7b053c7 in __asan_report_error
    #6 0xb7b06b95 in __asan_report_store4
    #7 0x807cdd8 in get_terminal_width_height libbb/xfuncs.c:269

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