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Diff for /wikisrc/users/maya.mdwn between versions 1.1 and 1.2

version 1.1, 2017/02/16 00:01:14 version 1.2, 2017/02/16 00:06:15
Line 15  I've been running it on netbsd tests in  Line 15  I've been running it on netbsd tests in 
   
     env ASAN_OPTIONS=alloc_dealloc_mismatch=0 LD_PRELOAD="/usr/lib/libasan.so /usr/lib/libubsan.so" atf-run      env ASAN_OPTIONS=alloc_dealloc_mismatch=0 LD_PRELOAD="/usr/lib/libasan.so /usr/lib/libubsan.so" atf-run
   
       sysctl -w security.pax.aslr.enabled=0 # [3]
   
 1. Seems like this is a cause of worse reports, as in-library functions  1. Seems like this is a cause of worse reports, as in-library functions
 are not intercepted.  are not intercepted.
   
 2. Not even close to canonical commands, should probably be improved.  2. Not even close to canonical commands, should probably be improved.
   
 3. ASAN_OPTIONS=alloc_dealloc_mismatch=0 is because atf-run itself  3. To workaround "Shadow memory range interleaves with an existing memory mapping. ASan cannot proceed correctly". An alternative is to LD_PRELOAD and LD_LIBRARY_PATH an entirely separate libc, ld.elf_so, etc.
   
   4. ASAN_OPTIONS=alloc_dealloc_mismatch=0 is because atf-run itself
     triggers a bug. Should have a look at it so this option doesn't      triggers a bug. Should have a look at it so this option doesn't
     need to be disabled.      need to be disabled.
   
Line 42  also sort by issue. Line 46  also sort by issue.
   
 Some suggestions for things to focus on, as there are many defects  Some suggestions for things to focus on, as there are many defects
 reported:  reported:
   
 - Setuid programs  - Setuid programs
 - Anything kernel  - Anything kernel
 - Stuff that runs as root  - Stuff that runs as root
   
 - Library or other code you know well already  - Library or other code you know well already
 - Drivers for hardware you actually own and can test  - Drivers for hardware you actually own and can test
   
 Future ideas:  Future ideas:
   
 - GCC could be told to add ASan flags for all shared objects, making  - GCC could be told to add ASan flags for all shared objects, making it easier to build world with those flags
   it easier to build world with those flags  
 - We could run all of NetBSD with ASan for some real world tests.  - We could run all of NetBSD with ASan for some real world tests.
 - ASan for kernel? (subr_kmem.c has some flags which do some of the  - ASan for kernel? (subr_kmem.c has some flags which do some of the work, could it do more?)
   work, could it do more?)  
 - Fuzzers are cool.  - Fuzzers are cool.
Removed from v.1.1  
changed lines
  Added in v.1.2

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