[panda-users] taint segmentation fault
xiaojuan Li
xiaotan6666 at gmail.com
Tue Apr 21 01:18:31 EDT 2015
Thanks for your patience very much and your great work!
now i can use the taint plugin(but it seems a little slow) and take my next
step.
2015-04-21 12:04 GMT+08:00 Brendan Dolan-Gavitt <brendandg at gatech.edu>:
> Ok! Another option is to try making a recording with only 256M of RAM,
> which would need only 4GB to replay.
>
> One last thing you can try – it is possible that the taint system will
> not actually use all of the memory it allocates. In this case, if you
> allow the kernel to overcommit memory it may succeed. You can do this
> either by setting /proc/sys/vm/overcommit_memory to 1 or by setting
> /proc/sys/vm/overcommit_ratio to a higher value. There are more
> details about this feature here:
> https://www.kernel.org/doc/Documentation/vm/overcommit-accounting
>
> -Brendan
>
>
> On Mon, Apr 20, 2015 at 11:54 PM, xiaojuan Li <xiaotan6666 at gmail.com>
> wrote:
> > sorry i make a mistake: my ram size is:
> > (free -g)
> > total used free shared buffers cached
> > Mem: 7 6 1 0 0 2
> > -/+ buffers/cache: 3 4
> > Swap: 0 0 0
> >
> > before i mistake the size of hardware...
> >
> > there is unlimit.
> > I think i should increase the memory chips.
> > Thanks !
> >
> > 2015-04-20 23:36 GMT-04:00 Brendan Dolan-Gavitt <brendandg at gatech.edu>:
> >
> >> It is still not able to allocate the memory for the taint system, it
> >> seems (based on the "Cannot allocate memory" part). Since you said
> >> your host system has 16GB of RAM, I'm not sure what else could be the
> >> problem.
> >>
> >> Do you have any memory quota set up on your system? (for example, does
> >> "ulimit -v" show any limits on the amount of memory you're allowed to
> >> allocate in a single process?)
> >>
> >> -Brendan
> >>
> >> On Mon, Apr 20, 2015 at 11:28 PM, xiaojuan Li <xiaotan6666 at gmail.com>
> >> wrote:
> >> > use the new version, but still segfault :(
> >> >
> >> > opening nondet log for read :
> >> > /home/shentanli/pandanew/scripts/api414-4-20-rr-nondet.log
> >> > api414-4-20: 81316759 ( 1.04%) instrs. 7.49 sec. 0.61 GB ram.
> >> > api414-4-20: 156342747 ( 2.00%) instrs. 16.14 sec. 0.69 GB ram.
> >> > api414-4-20: 234368551 ( 3.00%) instrs. 25.29 sec. 0.76 GB ram.
> >> > api414-4-20: 312493247 ( 4.00%) instrs. 36.09 sec. 0.83 GB ram.
> >> > api414-4-20: 390616091 ( 5.00%) instrs. 44.62 sec. 0.87 GB ram.
> >> > api414-4-20: 468738195 ( 6.00%) instrs. 50.08 sec. 0.90 GB ram.
> >> > api414-4-20: 547631582 ( 7.01%) instrs. 54.95 sec. 0.93 GB ram.
> >> > api414-4-20: 624983872 ( 8.00%) instrs. 58.64 sec. 0.94 GB ram.
> >> > api414-4-20: 703122355 ( 9.00%) instrs. 61.98 sec. 0.94 GB ram.
> >> > api414-4-20: 783198179 ( 10.03%) instrs. 65.80 sec. 0.95 GB ram.
> >> > READ Match of str 0 at: instr_count=812336749 : 72a7562e b6cb2e02
> >> > 0d36c000
> >> > tstringsearch: thestring = [passwordisqemu]
> >> > tstringsearch: 70 61 73 73 77 6f 72 64 69 73 71 65 6d 75
> >> > tstringsearch: string in memory @ 0xa70d6212
> >> > enabling taint at instr count 812336749
> >> > taint2: __taint_enable_taint
> >> > taint2: Creating byte-level taint processor
> >> > taint2: Allocating large fast_shad (8589934592 bytes).
> >> > taint2: Hugetlb failed. Trying without.
> >> > Cannot allocate memory
> >> > taint2: Allocating small fast_shad (12800000 bytes) using malloc @
> >> > 7f38ff62e010.
> >> > taint2: Allocating small fast_shad (256 bytes) using malloc @
> 17cda900.
> >> > taint2: Allocating small fast_shad (1024 bytes) using malloc @
> 17cd91f0.
> >> > taint2: Allocating small fast_shad (867840 bytes) using malloc @
> >> > 17d24e70.
> >> > taint2: Linking taint ops from
> >> >
> >> >
> /home/shentanli/pandanew/qemu/arm-softmmu/panda_plugins/panda_taint2_ops.bc
> >> > taint2: Done initializing taint transformation.
> >> > taint2: Done processing helper functions for taint.
> >> > taint2: Done verifying module. Running...
> >> >
> >> >
> >> >
> ****************************************************************************
> >> > applying taint labels to search string of length 14 @ p=0xa70d6212
> >> >
> >> >
> ******************************************************************************
> >> > Segmentation fault
> >> >
> >> >
> >> > 2015-04-20 23:18 GMT-04:00 Brendan Dolan-Gavitt <brendandg at gatech.edu
> >:
> >> >
> >> >> That was caused by some code that was left in by mistake from another
> >> >> branch of the project. I have fixed it and pushed the change. Once
> >> >> again you will need to do git pull && make clean && ./build.sh to
> >> >> rebuild.
> >> >>
> >> >> Hopefully this will fix things for you!
> >> >>
> >> >> -Brendan
> >> >>
> >> >> On Mon, Apr 20, 2015 at 11:11 PM, xiaojuan Li <xiaotan6666 at gmail.com
> >
> >> >> wrote:
> >> >> > it is the path that caused terminated.
> >> >> > i can find that panda_hypercall_struct.h in
> >> >> > /qemu/panda_tools/pirate_utils/linux direcroty
> >> >> >
> >> >> > 2015-04-20 23:02 GMT-04:00 xiaojuan Li <xiaotan6666 at gmail.com>:
> >> >> >
> >> >> >> while rebuild:
> >> >> >> taint2.cpp:109:61: fatal error:
> >> >> >> ../../../../lava/include/panda_hypercall_struct.h: No such file or
> >> >> >> directory
> >> >> >> compilation terminated.
> >> >> >> miss some files to push?
> >> >> >>
> >> >> >>
> >> >> >> 2015-04-20 22:56 GMT-04:00 xiaojuan Li <xiaotan6666 at gmail.com>:
> >> >> >>
> >> >> >>> you mean that it caused by "allocate at a fixed address"
> >> >> >>> i am going to try and thanks.
> >> >> >>>
> >> >> >>> 2015-04-20 22:53 GMT-04:00 Brendan Dolan-Gavitt
> >> >> >>> <brendandg at gatech.edu>:
> >> >> >>>
> >> >> >>>> Ah! I forgot to push the commit I made to stop it from trying to
> >> >> >>>> allocate at a fixed address.
> >> >> >>>>
> >> >> >>>> Could you do a git pull, rebuild, and try again?
> >> >> >>>>
> >> >> >>>> -Brendan
> >> >> >>>>
> >> >> >>>> On Mon, Apr 20, 2015 at 10:51 PM, xiaojuan Li
> >> >> >>>> <xiaotan6666 at gmail.com>
> >> >> >>>> wrote:
> >> >> >>>> > 1. the command i use is :
> >> >> >>>> > ./qemu-system-arm 0m 512 -replay api414-4-20 -M android_arm
> >> >> >>>> > -kernel
> >> >> >>>> > /dev/null -android -panda
> >> >> >>>> > "stringsearch:name=test;tstringsearch;tainted_instr"
> >> >> >>>> > 2.the output is:
> >> >> >>>> > Adding PANDA arg stringsearch:name=test.
> >> >> >>>> > adding
> >> >> >>>> >
> >> >> >>>> >
> >> >> >>>> >
> >> >> >>>> >
> /home/shentanli/pandanew/qemu/arm-softmmu/panda_plugins/panda_stringsearch.so
> >> >> >>>> > to panda_plugin_files 0
> >> >> >>>> > adding
> >> >> >>>> >
> >> >> >>>> >
> >> >> >>>> >
> >> >> >>>> >
> /home/shentanli/pandanew/qemu/arm-softmmu/panda_plugins/panda_tstringsearch.so
> >> >> >>>> > to panda_plugin_files 1
> >> >> >>>> > adding
> >> >> >>>> >
> >> >> >>>> >
> >> >> >>>> >
> >> >> >>>> >
> /home/shentanli/pandanew/qemu/arm-softmmu/panda_plugins/panda_tainted_instr.so
> >> >> >>>> > to panda_plugin_files 2
> >> >> >>>> > emulator: registered 'boot-properties' qemud service
> >> >> >>>> > emulator: Adding boot property: 'dalvik.vm.heapsize' = '48m'
> >> >> >>>> > emulator: Adding boot property: 'qemu.sf.fake_camera' = 'both'
> >> >> >>>> > emulator: Adding boot property: 'qemu.hw.mainkeys' = '0'
> >> >> >>>> > loading
> >> >> >>>> >
> >> >> >>>> >
> >> >> >>>> >
> >> >> >>>> >
> /home/shentanli/pandanew/qemu/arm-softmmu/panda_plugins/panda_stringsearch.so
> >> >> >>>> > Initializing plugin stringsearch
> >> >> >>>> > panda_require: callstack_instr
> >> >> >>>> > loading
> >> >> >>>> >
> >> >> >>>> >
> >> >> >>>> >
> >> >> >>>> >
> /home/shentanli/pandanew/qemu/arm-softmmu/panda_plugins/panda_callstack_instr.so
> >> >> >>>> > Initializing plugin callstack_instr
> >> >> >>>> > Success
> >> >> >>>> > stringsearch: added string of length 14 to search set
> >> >> >>>> > Success
> >> >> >>>> > loading
> >> >> >>>> >
> >> >> >>>> >
> >> >> >>>> >
> >> >> >>>> >
> /home/shentanli/pandanew/qemu/arm-softmmu/panda_plugins/panda_tstringsearch.so
> >> >> >>>> > Initializing tstringsearch
> >> >> >>>> > panda_require: stringsearch
> >> >> >>>> > panda_load_plugin:
> >> >> >>>> >
> >> >> >>>> >
> >> >> >>>> >
> >> >> >>>> >
> /home/shentanli/pandanew/qemu/arm-softmmu/panda_plugins/panda_stringsearch.so
> >> >> >>>> > already loaded
> >> >> >>>> > panda_require: taint2
> >> >> >>>> > loading
> >> >> >>>> >
> >> >> >>>> >
> >> >> >>>> >
> >> >> >>>> >
> /home/shentanli/pandanew/qemu/arm-softmmu/panda_plugins/panda_taint2.so
> >> >> >>>> > Initializing taint plugin
> >> >> >>>> > taint2: Instructed not to inline taint ops.
> >> >> >>>> > panda_require: callstack_instr
> >> >> >>>> > panda_load_plugin:
> >> >> >>>> >
> >> >> >>>> >
> >> >> >>>> >
> >> >> >>>> >
> /home/shentanli/pandanew/qemu/arm-softmmu/panda_plugins/panda_callstack_instr.so
> >> >> >>>> > already loaded
> >> >> >>>> > Success
> >> >> >>>> > Success
> >> >> >>>> > loading
> >> >> >>>> >
> >> >> >>>> >
> >> >> >>>> >
> >> >> >>>> >
> /home/shentanli/pandanew/qemu/arm-softmmu/panda_plugins/panda_tainted_instr.so
> >> >> >>>> > panda_require: taint2
> >> >> >>>> > panda_load_plugin:
> >> >> >>>> >
> >> >> >>>> >
> >> >> >>>> >
> >> >> >>>> >
> /home/shentanli/pandanew/qemu/arm-softmmu/panda_plugins/panda_taint2.so
> >> >> >>>> > already loaded
> >> >> >>>> > panda_require: callstack_instr
> >> >> >>>> > panda_load_plugin:
> >> >> >>>> >
> >> >> >>>> >
> >> >> >>>> >
> >> >> >>>> >
> /home/shentanli/pandanew/qemu/arm-softmmu/panda_plugins/panda_callstack_instr.so
> >> >> >>>> > already loaded
> >> >> >>>> > Success
> >> >> >>>> > goldfish_add_device: goldfish_device_bus, base ff001000 1000,
> >> >> >>>> > irq 1
> >> >> >>>> > 1
> >> >> >>>> > goldfish_device_bus: ff001000 30
> >> >> >>>> > goldfish_add_device: goldfish_int, base ff000000 1000, irq 0 0
> >> >> >>>> > goldfish_int: ff000000 38
> >> >> >>>> > goldfish_add_device: goldfish_timer, base ff003000 1000, irq
> 3 1
> >> >> >>>> > goldfish_timer: ff003000 40
> >> >> >>>> > goldfish_add_device: goldfish_rtc, base ff010000 1000, irq 10
> 1
> >> >> >>>> > goldfish_rtc: ff010000 48
> >> >> >>>> > goldfish_add_device: goldfish_tty, base ff002000 1000, irq 4 1
> >> >> >>>> > goldfish_tty: ff002000 50
> >> >> >>>> > android_arm_init serial 1 0
> >> >> >>>> > android_arm_init serial 2 0
> >> >> >>>> > android_arm_init serial 3 0
> >> >> >>>> > goldfish_add_device: smc91x, base ff011000 1000, irq 11 1
> >> >> >>>> > goldfish_add_device: goldfish_fb, base ff012000 1000, irq 12 1
> >> >> >>>> > goldfish_fb: ff012000 68
> >> >> >>>> > Using tmpfile for SD card:
> >> >> >>>> > /tmp/android-shentanli/emulator-P6kmpf
> >> >> >>>> > goldfish_add_device: goldfish_mmc, base ff005000 1000, irq 13
> 1
> >> >> >>>> > goldfish_mmc: ff005000 70
> >> >> >>>> > goldfish_add_device: goldfish_memlog, base ff006000 1000, irq
> 0
> >> >> >>>> > 0
> >> >> >>>> > goldfish_memlog: ff006000 78
> >> >> >>>> > goldfish_add_device: goldfish-battery, base ff013000 1000, irq
> >> >> >>>> > 14 1
> >> >> >>>> > goldfish-battery: ff013000 80
> >> >> >>>> > goldfish_add_device: goldfish_events, base ff014000 1000, irq
> 15
> >> >> >>>> > 1
> >> >> >>>> > goldfish_events: ff014000 88
> >> >> >>>> > Using event IRQ
> >> >> >>>> > Invalid system partition size for non-QCOW image: 0emulator:
> >> >> >>>> > geometry
> >> >> >>>> > says
> >> >> >>>> > there are 0 blocks
> >> >> >>>> >
> >> >> >>>> > emulator: Dev size of /tmp/android-shentanli/emulator-jxC2Uf
> is
> >> >> >>>> > 0
> >> >> >>>> >
> >> >> >>>> > Invalid data partition size for non-QCOW image: 0emulator: Dev
> >> >> >>>> > size
> >> >> >>>> > 0x0 came
> >> >> >>>> > from argument
> >> >> >>>> >
> >> >> >>>> > emulator: geometry says there are 0 blocks
> >> >> >>>> >
> >> >> >>>> > emulator: Dev size of /tmp/android-shentanli/emulator-2FZLqg
> is
> >> >> >>>> > 0
> >> >> >>>> >
> >> >> >>>> > emulator: Dev size 0x0 came from argument
> >> >> >>>> >
> >> >> >>>> > emulator: geometry says there are 0 blocks
> >> >> >>>> >
> >> >> >>>> > emulator: Dev size of /tmp/android-shentanli/emulator-lyszWg
> is
> >> >> >>>> > 0
> >> >> >>>> >
> >> >> >>>> > goldfish_add_device: goldfish_nand, base ff015000 1000, irq
> 16 1
> >> >> >>>> > goldfish_nand: ff015000 90
> >> >> >>>> > goldfish_add_device: qemu_pipe, base ff016000 2000, irq 17 1
> >> >> >>>> > qemu_pipe: ff016000 98
> >> >> >>>> > emulator: control console listening on port 5554, ADB on port
> >> >> >>>> > 5555
> >> >> >>>> > emulator: can't connect to ADB server: Connection refused
> >> >> >>>> > emulator: Realistic sensor emulation is not available, since
> the
> >> >> >>>> > remote
> >> >> >>>> > controller is not accessible:
> >> >> >>>> > Connection refused
> >> >> >>>> > loading snapshot
> >> >> >>>> > emulator: Adding boot property: 'dalvik.vm.heapsize' = '48m'
> >> >> >>>> > emulator: Adding boot property: 'qemu.sf.fake_camera' = 'both'
> >> >> >>>> > emulator: Adding boot property: 'qemu.hw.mainkeys' = '0'
> >> >> >>>> > Unknown savevm section or instance 'goldfish_tty' 1
> >> >> >>>> > ... done.
> >> >> >>>> >
> >> >> >>>> > Logging all cpu states
> >> >> >>>> > CPU #0:
> >> >> >>>> > R00=00000000 R01=c049bcb8 R02=00000000 R03=00000000
> >> >> >>>> > R04=c0480000 R05=c04b9948 R06=c048fd34 R07=c047b374
> >> >> >>>> > R08=c0a05100 R09=410fc090 R10=00000000 R11=00000000
> >> >> >>>> > R12=c049bcb8 R13=c0481fb0 R14=c000e3f4 R15=c00158c8
> >> >> >>>> > PSR=60000093 -ZC- A svc32
> >> >> >>>> > opening nondet log for read :
> >> >> >>>> > /home/shentanli/pandanew/scripts/api414-4-20-rr-nondet.log
> >> >> >>>> > api414-4-20: 81316759 ( 1.04%) instrs. 7.52 sec. 0.61
> GB
> >> >> >>>> > ram.
> >> >> >>>> > api414-4-20: 156342747 ( 2.00%) instrs. 15.90 sec. 0.69
> GB
> >> >> >>>> > ram.
> >> >> >>>> > api414-4-20: 234368551 ( 3.00%) instrs. 24.93 sec. 0.76
> GB
> >> >> >>>> > ram.
> >> >> >>>> > api414-4-20: 312493247 ( 4.00%) instrs. 35.45 sec. 0.83
> GB
> >> >> >>>> > ram.
> >> >> >>>> > api414-4-20: 390616091 ( 5.00%) instrs. 43.97 sec. 0.87
> GB
> >> >> >>>> > ram.
> >> >> >>>> > api414-4-20: 468738195 ( 6.00%) instrs. 49.32 sec. 0.90
> GB
> >> >> >>>> > ram.
> >> >> >>>> > api414-4-20: 547631582 ( 7.01%) instrs. 54.12 sec. 0.93
> GB
> >> >> >>>> > ram.
> >> >> >>>> > api414-4-20: 624983872 ( 8.00%) instrs. 57.67 sec. 0.94
> GB
> >> >> >>>> > ram.
> >> >> >>>> > api414-4-20: 703122355 ( 9.00%) instrs. 60.94 sec. 0.94
> GB
> >> >> >>>> > ram.
> >> >> >>>> > api414-4-20: 783198179 ( 10.03%) instrs. 64.60 sec. 0.95
> GB
> >> >> >>>> > ram.
> >> >> >>>> > READ Match of str 0 at: instr_count=812336749 : 72a7562e
> >> >> >>>> > b6cb2e02
> >> >> >>>> > 0d36c000
> >> >> >>>> > tstringsearch: thestring = [passwordisqemu]
> >> >> >>>> > tstringsearch: 70 61 73 73 77 6f 72 64 69 73 71 65 6d 75
> >> >> >>>> > tstringsearch: string in memory @ 0xa70d6212
> >> >> >>>> > enabling taint at instr count 812336749
> >> >> >>>> > taint2: __taint_enable_taint
> >> >> >>>> > taint2: Creating byte-level taint processor
> >> >> >>>> > taint2: Allocating large fast_shad (8589934592 bytes) @
> >> >> >>>> > 0x10000000000.
> >> >> >>>> > taint2: Hugetlb failed. Trying without.
> >> >> >>>> > taint2: Allocating large fast_shad (8589934592 bytes) @
> >> >> >>>> > 0x20000000000.
> >> >> >>>> > taint2: Hugetlb failed. Trying without.
> >> >> >>>> > taint2: Allocating large fast_shad (8589934592 bytes) @
> >> >> >>>> > 0x30000000000.
> >> >> >>>> > taint2: Hugetlb failed. Trying without.
> >> >> >>>> > taint2: Allocating large fast_shad (8589934592 bytes) @
> >> >> >>>> > 0x40000000000.
> >> >> >>>> > taint2: Hugetlb failed. Trying without.
> >> >> >>>> > taint2: Allocating large fast_shad (8589934592 bytes) @
> >> >> >>>> > 0x50000000000.
> >> >> >>>> > taint2: Hugetlb failed. Trying without.
> >> >> >>>> > taint2: Allocating large fast_shad (8589934592 bytes) @
> >> >> >>>> > 0x60000000000.
> >> >> >>>> > taint2: Hugetlb failed. Trying without.
> >> >> >>>> > taint2: Allocating large fast_shad (8589934592 bytes) @
> >> >> >>>> > 0x70000000000.
> >> >> >>>> > taint2: Hugetlb failed. Trying without.
> >> >> >>>> > taint2: Allocating large fast_shad (8589934592 bytes) @
> >> >> >>>> > 0x80000000000.
> >> >> >>>> > taint2: Hugetlb failed. Trying without.
> >> >> >>>> > taint2: Allocating large fast_shad (8589934592 bytes) @
> >> >> >>>> > 0x90000000000.
> >> >> >>>> > taint2: Hugetlb failed. Trying without.
> >> >> >>>> > Cannot allocate memory
> >> >> >>>> > taint2: Allocating small fast_shad (12800000 bytes) using
> malloc
> >> >> >>>> > @
> >> >> >>>> > 7f8b608d0010.
> >> >> >>>> > taint2: Allocating small fast_shad (256 bytes) using malloc @
> >> >> >>>> > 16be2a70.
> >> >> >>>> > taint2: Allocating small fast_shad (1024 bytes) using malloc @
> >> >> >>>> > 171c3540.
> >> >> >>>> > taint2: Allocating small fast_shad (867840 bytes) using
> malloc @
> >> >> >>>> > 1720ddd0.
> >> >> >>>> > taint2: Linking taint ops from
> >> >> >>>> >
> >> >> >>>> >
> >> >> >>>> >
> >> >> >>>> >
> /home/shentanli/pandanew/qemu/arm-softmmu/panda_plugins/panda_taint2_ops.bc
> >> >> >>>> > taint2: Done initializing taint transformation.
> >> >> >>>> > taint2: Done processing helper functions for taint.
> >> >> >>>> > taint2: Done verifying module. Running...
> >> >> >>>> >
> >> >> >>>> >
> >> >> >>>> >
> >> >> >>>> >
> >> >> >>>> >
> ****************************************************************************
> >> >> >>>> > applying taint labels to search string of length 14 @
> >> >> >>>> > p=0xa70d6212
> >> >> >>>> >
> >> >> >>>> >
> >> >> >>>> >
> >> >> >>>> >
> ******************************************************************************
> >> >> >>>> > Segmentation fault
> >> >> >>>> >
> >> >> >>>> >
> >> >> >>>> > 2015-04-20 22:42 GMT-04:00 Brendan Dolan-Gavitt
> >> >> >>>> > <brendandg at gatech.edu>:
> >> >> >>>> >
> >> >> >>>> >> I am currently running your taint replay, and it is (so far)
> >> >> >>>> >> working
> >> >> >>>> >> fine. Here is the (slightly abbreviated) output I get:
> >> >> >>>> >>
> >> >> >>>> >> api414-4-20: 783198179 ( 10.03%) instrs. 218.26 sec. 0.96
> >> >> >>>> >> GB
> >> >> >>>> >> ram.
> >> >> >>>> >> READ Match of str 0 at: instr_count=812336749 : 72a7562e
> >> >> >>>> >> b6cb2e02
> >> >> >>>> >> 0d36c000
> >> >> >>>> >> tstringsearch: thestring = [passwordisqemu]
> >> >> >>>> >> tstringsearch: 70 61 73 73 77 6f 72 64 69 73 71 65 6d 75
> >> >> >>>> >> tstringsearch: string in memory @ 0xa70d6212
> >> >> >>>> >> enabling taint at instr count 812336749
> >> >> >>>> >> taint2: __taint_enable_taint
> >> >> >>>> >> taint2: Creating byte-level taint processor
> >> >> >>>> >> taint2: Allocating large fast_shad (8589934592 bytes).
> >> >> >>>> >> taint2: Hugetlb failed. Trying without.
> >> >> >>>> >> taint2: Allocating small fast_shad (12800000 bytes) using
> >> >> >>>> >> malloc @
> >> >> >>>> >> 7fdd165c6010.
> >> >> >>>> >> taint2: Allocating small fast_shad (256 bytes) using malloc @
> >> >> >>>> >> 7fdd0bec21a0.
> >> >> >>>> >> taint2: Allocating small fast_shad (1024 bytes) using malloc
> @
> >> >> >>>> >> 7fdcfc49ddc0.
> >> >> >>>> >> taint2: Allocating small fast_shad (867840 bytes) using
> malloc
> >> >> >>>> >> @
> >> >> >>>> >> 7fdcfc4e7db0.
> >> >> >>>> >> taint2: Linking taint ops from
> >> >> >>>> >>
> >> >> >>>> >>
> >> >> >>>> >>
> >> >> >>>> >>
> /scratch/git/pandroid/qemu/arm-softmmu/panda_plugins/panda_taint2_ops.bc
> >> >> >>>> >> taint2: Done initializing taint transformation.
> >> >> >>>> >> taint2: Done processing helper functions for taint.
> >> >> >>>> >> taint2: Done verifying module. Running...
> >> >> >>>> >>
> >> >> >>>> >>
> >> >> >>>> >>
> >> >> >>>> >>
> >> >> >>>> >>
> >> >> >>>> >>
> ****************************************************************************
> >> >> >>>> >> applying taint labels to search string of length 14 @
> >> >> >>>> >> p=0xa70d6212
> >> >> >>>> >>
> >> >> >>>> >>
> >> >> >>>> >>
> >> >> >>>> >>
> >> >> >>>> >>
> ******************************************************************************
> >> >> >>>> >> READ Match of str 0 at: instr_count=812336765 : 72a7562e
> >> >> >>>> >> b6cb2a2a
> >> >> >>>> >> 0d36c000
> >> >> >>>> >> tstringsearch: thestring = [passwordisqemu]
> >> >> >>>> >> tstringsearch: 70 61 73 73 77 6f 72 64 69 73 71 65 6d 75
> >> >> >>>> >> tstringsearch: string in memory @ 0xa70d6212
> >> >> >>>> >>
> >> >> >>>> >>
> >> >> >>>> >>
> >> >> >>>> >>
> >> >> >>>> >>
> >> >> >>>> >>
> ****************************************************************************
> >> >> >>>> >> applying taint labels to search string of length 14 @
> >> >> >>>> >> p=0xa70d6212
> >> >> >>>> >>
> >> >> >>>> >>
> >> >> >>>> >>
> >> >> >>>> >>
> >> >> >>>> >>
> ******************************************************************************
> >> >> >>>> >> READ Match of str 0 at: instr_count=812337316 : 72a7562e
> >> >> >>>> >> b6cb2e4a
> >> >> >>>> >> 0d36c000
> >> >> >>>> >> tstringsearch: thestring = [passwordisqemu]
> >> >> >>>> >> tstringsearch: 70 61 73 73 77 6f 72 64 69 73 71 65 6d 75
> >> >> >>>> >> tstringsearch: string in memory @ 0xa70d6212
> >> >> >>>> >>
> >> >> >>>> >>
> >> >> >>>> >>
> >> >> >>>> >>
> >> >> >>>> >>
> >> >> >>>> >>
> ****************************************************************************
> >> >> >>>> >> applying taint labels to search string of length 14 @
> >> >> >>>> >> p=0xa70d6212
> >> >> >>>> >>
> >> >> >>>> >>
> >> >> >>>> >>
> >> >> >>>> >>
> >> >> >>>> >>
> ******************************************************************************
> >> >> >>>> >> READ Match of str 0 at: instr_count=812337331 : 72a7562e
> >> >> >>>> >> b6cb2a2a
> >> >> >>>> >> 0d36c000
> >> >> >>>> >> tstringsearch: thestring = [passwordisqemu]
> >> >> >>>> >> tstringsearch: 70 61 73 73 77 6f 72 64 69 73 71 65 6d 75
> >> >> >>>> >> tstringsearch: string in memory @ 0xa70d6212
> >> >> >>>> >>
> >> >> >>>> >>
> >> >> >>>> >>
> >> >> >>>> >>
> >> >> >>>> >>
> >> >> >>>> >>
> ****************************************************************************
> >> >> >>>> >> applying taint labels to search string of length 14 @
> >> >> >>>> >> p=0xa70d6212
> >> >> >>>> >>
> >> >> >>>> >>
> >> >> >>>> >>
> >> >> >>>> >>
> >> >> >>>> >>
> ******************************************************************************
> >> >> >>>> >> api414-4-20: 859399601 ( 11.00%) instrs. 658.13 sec. 3.27
> >> >> >>>> >> GB
> >> >> >>>> >> ram.
> >> >> >>>> >> api414-4-20: 937474512 ( 12.00%) instrs. 1017.48 sec. 4.70
> >> >> >>>> >> GB
> >> >> >>>> >> ram.
> >> >> >>>> >> api414-4-20: 1015597970 ( 13.00%) instrs. 1265.76 sec. 5.58
> >> >> >>>> >> GB
> >> >> >>>> >> ram.
> >> >> >>>> >>
> >> >> >>>> >> My command line to replay was:
> >> >> >>>> >>
> >> >> >>>> >> arm-softmmu/qemu-system-arm -m 512 -replay api414-4-20 -M
> >> >> >>>> >> android_arm
> >> >> >>>> >> -cpu cortex-a9 -android -kernel /dev/null -pandalog api.log
> >> >> >>>> >> -panda
> >> >> >>>> >> 'stringsearch:name=api;tstringsearch;tainted_instr'
> >> >> >>>> >>
> >> >> >>>> >> From the screenshot you posted earlier, it looks like yours
> had
> >> >> >>>> >> already failed by this point. If you are still getting a
> >> >> >>>> >> segfault
> >> >> >>>> >> with
> >> >> >>>> >> this replay, could you post:
> >> >> >>>> >>
> >> >> >>>> >> 1. The full command line you are using (as text, not a
> >> >> >>>> >> screenshot)
> >> >> >>>> >> 2. The full output from PANDA up to the point where the
> >> >> >>>> >> segfault
> >> >> >>>> >> happens (as text, not a screenshot)
> >> >> >>>> >>
> >> >> >>>> >> -Brendan
> >> >> >>>> >>
> >> >> >>>> >> On Mon, Apr 20, 2015 at 7:57 PM, xiaojuan Li
> >> >> >>>> >> <xiaotan6666 at gmail.com>
> >> >> >>>> >> wrote:
> >> >> >>>> >> > i know you are busy.
> >> >> >>>> >> > I just get stuck in this taint step but have no idea no fix
> >> >> >>>> >> > it...(use
> >> >> >>>> >> > core
> >> >> >>>> >> > dump to find where it segfault )
> >> >> >>>> >> > here is the 512M version:
> >> >> >>>> >> > http://pan.baidu.com/s/1mgopzIg
> >> >> >>>> >> > the content of search string .txt is "passwordisqemu"
> >> >> >>>> >> > thanks!
> >> >> >>>> >> >
> >> >> >>>> >> > 2015-04-20 11:32 GMT-04:00 Brendan Dolan-Gavitt
> >> >> >>>> >> > <brendandg at gatech.edu>:
> >> >> >>>> >> >
> >> >> >>>> >> >> I will try to reproduce from those instructions in the
> next
> >> >> >>>> >> >> couple
> >> >> >>>> >> >> days.
> >> >> >>>> >> >> Sorry for the delay! Did you post the .rr of the recording
> >> >> >>>> >> >> with
> >> >> >>>> >> >> 512M
> >> >> >>>> >> >> somewhere? I only saw the 2G one.
> >> >> >>>> >> >>
> >> >> >>>> >> >> Thanks,
> >> >> >>>> >> >> Brendan
> >> >> >>>> >> >>
> >> >> >>>> >> >> On Mon, Apr 20, 2015 at 8:07 AM, xiaojuan Li
> >> >> >>>> >> >> <xiaotan6666 at gmail.com>
> >> >> >>>> >> >> wrote:
> >> >> >>>> >> >>>
> >> >> >>>> >> >>> about the taint segfault, if you cannot download that
> .rr i
> >> >> >>>> >> >>> upload
> >> >> >>>> >> >>> before, you can follow the step to reproduce:
> >> >> >>>> >> >>> 1)use android studio to create avd, choose api21 target
> >> >> >>>> >> >>> android
> >> >> >>>> >> >>> 5.0.1
> >> >> >>>> >> >>> use
> >> >> >>>> >> >>> the default size;you can get the
> >> >> >>>> >> >>> cache-img,sdcard.img,data.img
> >> >> >>>> >> >>> and
> >> >> >>>> >> >>> system.img and then copy kernel-qemu & rmdisk.img from
> >> >> >>>> >> >>> sdk/systemimg;
> >> >> >>>> >> >>> 2)use pandaCovert.py to convert them and get the
> >> >> >>>> >> >>> (cache,data,system)-pandroid.qcow2 as well as kernel and
> >> >> >>>> >> >>> initramfs;
> >> >> >>>> >> >>> 3)use runpandroid.py(-m 512) to boot emulator;telnet and
> >> >> >>>> >> >>> begin_record
> >> >> >>>> >> >>> 4)run an app and input a string : end_record;
> >> >> >>>> >> >>> 5)use qemu-system-arm to replay(-m 512) with the panda
> >> >> >>>> >> >>> plugins:stringsearch,tstringsearch;tainted_instr.(the
> >> >> >>>> >> >>> search
> >> >> >>>> >> >>> string
> >> >> >>>> >> >>> .txt is
> >> >> >>>> >> >>> the string you input)
> >> >> >>>> >> >>>
> >> >> >>>> >> >>> do you guys get the segfault ?
> >> >> >>>> >> >>> how can i fix it?
> >> >> >>>> >> >>> Thanks a lot!
> >> >> >>>> >> >>>
> >> >> >>>> >> >>> 2015-04-20 17:51 GMT+08:00 xiaojuan Li
> >> >> >>>> >> >>> <xiaotan6666 at gmail.com>:
> >> >> >>>> >> >>>>
> >> >> >>>> >> >>>> excuse me, i have noticed that the ida_taint
> plugin:"win7
> >> >> >>>> >> >>>> only
> >> >> >>>> >> >>>> but
> >> >> >>>> >> >>>> othre
> >> >> >>>> >> >>>> os could be easily added".
> >> >> >>>> >> >>>> i have installed ida pro in my system(debian),modified
> the
> >> >> >>>> >> >>>> ida_taint.bat
> >> >> >>>> >> >>>> with my ida path,when i use it :./ida_taint.bat
> name.json
> >> >> >>>> >> >>>> qemu-system-arm
> >> >> >>>> >> >>>> it failed. it seems not available in linux, is it?
> >> >> >>>> >> >>>> Thanks a lot!
> >> >> >>>> >> >>>>
> >> >> >>>> >> >>>>
> >> >> >>>> >> >>>> 2015-04-10 21:24 GMT-04:00 Brendan Dolan-Gavitt
> >> >> >>>> >> >>>> <brendandg at gatech.edu>:
> >> >> >>>> >> >>>>
> >> >> >>>> >> >>>>> Once you have used PANDA's taint system to identify the
> >> >> >>>> >> >>>>> portions of
> >> >> >>>> >> >>>>> the
> >> >> >>>> >> >>>>> code that process the data you're interested in, you
> will
> >> >> >>>> >> >>>>> still
> >> >> >>>> >> >>>>> have
> >> >> >>>> >> >>>>> to
> >> >> >>>> >> >>>>> analyze that code do understand how it works. One way
> to
> >> >> >>>> >> >>>>> do
> >> >> >>>> >> >>>>> that
> >> >> >>>> >> >>>>> might be to
> >> >> >>>> >> >>>>> use the scissors plugin to extract out the portion of
> the
> >> >> >>>> >> >>>>> trace
> >> >> >>>> >> >>>>> that
> >> >> >>>> >> >>>>> contains the code you're interested in, and then replay
> >> >> >>>> >> >>>>> it
> >> >> >>>> >> >>>>> with
> >> >> >>>> >> >>>>> QEMU's "-d
> >> >> >>>> >> >>>>> in_asm -D asmlog.txt" options to get the disassembly
> for
> >> >> >>>> >> >>>>> that
> >> >> >>>> >> >>>>> code.
> >> >> >>>> >> >>>>>
> >> >> >>>> >> >>>>> Alternatively, you could take a memory snapshot at some
> >> >> >>>> >> >>>>> point
> >> >> >>>> >> >>>>> when
> >> >> >>>> >> >>>>> the
> >> >> >>>> >> >>>>> code you want to analyze is in memory (using something
> >> >> >>>> >> >>>>> like
> >> >> >>>> >> >>>>> the
> >> >> >>>> >> >>>>> pmemsave
> >> >> >>>> >> >>>>> plugin in PANDA), then use Volatility to analyze that
> >> >> >>>> >> >>>>> memory
> >> >> >>>> >> >>>>> image
> >> >> >>>> >> >>>>> to
> >> >> >>>> >> >>>>> extract out the binary, which you could look at in IDA
> or
> >> >> >>>> >> >>>>> something
> >> >> >>>> >> >>>>> similar.
> >> >> >>>> >> >>>>>
> >> >> >>>> >> >>>>> Basically – disassemble the code that handles the data
> >> >> >>>> >> >>>>> you're
> >> >> >>>> >> >>>>> interested in and find out how it works. Exactly what
> >> >> >>>> >> >>>>> that
> >> >> >>>> >> >>>>> means
> >> >> >>>> >> >>>>> will depend
> >> >> >>>> >> >>>>> on what you're hoping to accomplish.
> >> >> >>>> >> >>>>>
> >> >> >>>> >> >>>>> -Brendan
> >> >> >>>> >> >>>>>
> >> >> >>>> >> >>>>> On Fri, Apr 10, 2015 at 9:07 PM, xiaojuan Li
> >> >> >>>> >> >>>>> <xiaotan6666 at gmail.com>
> >> >> >>>> >> >>>>> wrote:
> >> >> >>>> >> >>>>>>
> >> >> >>>> >> >>>>>> Hi,
> >> >> >>>> >> >>>>>> Thanks for your job first.
> >> >> >>>> >> >>>>>> I am a little confused about the result of the
> >> >> >>>> >> >>>>>> tainted.how
> >> >> >>>> >> >>>>>> can
> >> >> >>>> >> >>>>>> I
> >> >> >>>> >> >>>>>> get
> >> >> >>>> >> >>>>>> enough information about the processing code from the
> >> >> >>>> >> >>>>>> binary?
> >> >> >>>> >> >>>>>> use
> >> >> >>>> >> >>>>>> the gdb?
> >> >> >>>> >> >>>>>> Thanks!
> >> >> >>>> >> >>>>>>
> >> >> >>>> >> >>>>>> 2015-04-10 12:05 GMT+08:00 xiaojuan Li
> >> >> >>>> >> >>>>>> <xiaotan6666 at gmail.com>:
> >> >> >>>> >> >>>>>>>
> >> >> >>>> >> >>>>>>> Thanks for your guys great work!
> >> >> >>>> >> >>>>>>> and I will try.
> >> >> >>>> >> >>>>>>>
> >> >> >>>> >> >>>>>>> 2015-04-10 11:42 GMT+08:00 Brendan Dolan-Gavitt
> >> >> >>>> >> >>>>>>> <brendandg at gatech.edu>:
> >> >> >>>> >> >>>>>>>>
> >> >> >>>> >> >>>>>>>> Hi,
> >> >> >>>> >> >>>>>>>>
> >> >> >>>> >> >>>>>>>> Tim has just updated the tainted_instructions
> tutorial
> >> >> >>>> >> >>>>>>>> so
> >> >> >>>> >> >>>>>>>> that it
> >> >> >>>> >> >>>>>>>> reflects how things work now. Could you look through
> >> >> >>>> >> >>>>>>>> that
> >> >> >>>> >> >>>>>>>> tutorial and see
> >> >> >>>> >> >>>>>>>> if it helps with your problem?
> >> >> >>>> >> >>>>>>>>
> >> >> >>>> >> >>>>>>>>
> >> >> >>>> >> >>>>>>>>
> >> >> >>>> >> >>>>>>>>
> >> >> >>>> >> >>>>>>>>
> >> >> >>>> >> >>>>>>>>
> >> >> >>>> >> >>>>>>>>
> https://github.com/moyix/panda/blob/master/docs/tainted_instructions.md
> >> >> >>>> >> >>>>>>>>
> >> >> >>>> >> >>>>>>>> Note that you will probably need to do a "git pull"
> >> >> >>>> >> >>>>>>>> and
> >> >> >>>> >> >>>>>>>> rebuild
> >> >> >>>> >> >>>>>>>> (make clean ; ./build.sh) in order to make sure
> >> >> >>>> >> >>>>>>>> everything
> >> >> >>>> >> >>>>>>>> works
> >> >> >>>> >> >>>>>>>> as it says
> >> >> >>>> >> >>>>>>>> in the tutorial.
> >> >> >>>> >> >>>>>>>>
> >> >> >>>> >> >>>>>>>> -Brendan
> >> >> >>>> >> >>>>>>>>
> >> >> >>>> >> >>>>>>>> On Thu, Apr 9, 2015 at 9:30 AM, xiaojuan Li
> >> >> >>>> >> >>>>>>>> <xiaotan6666 at gmail.com>
> >> >> >>>> >> >>>>>>>> wrote:
> >> >> >>>> >> >>>>>>>>>
> >> >> >>>> >> >>>>>>>>> Now that the panda taint.md is not fresh,can you
> guys
> >> >> >>>> >> >>>>>>>>> give
> >> >> >>>> >> >>>>>>>>> me
> >> >> >>>> >> >>>>>>>>> some
> >> >> >>>> >> >>>>>>>>> help?
> >> >> >>>> >> >>>>>>>>> I use the replay plugin,here is my command and the
> >> >> >>>> >> >>>>>>>>> result.
> >> >> >>>> >> >>>>>>>>>
> >> >> >>>> >> >>>>>>>>>
> >> >> >>>> >> >>>>>>>>>
> >> >> >>>> >> >>>>>>>>>
> >> >> >>>> >> >>>>>>>>>
> >> >> >>>> >> >>>>>>>>> the content of pk_search_strings.txt is :"sdt"
> >> >> >>>> >> >>>>>>>>>
> >> >> >>>> >> >>>>>>>>> I am confused here:in the paper— Repeatable reverse
> >> >> >>>> >> >>>>>>>>> with
> >> >> >>>> >> >>>>>>>>> panda:
> >> >> >>>> >> >>>>>>>>> :
> >> >> >>>> >> >>>>>>>>> it is clear that:if I use the stringsearch and
> taint
> >> >> >>>> >> >>>>>>>>> plugin,when
> >> >> >>>> >> >>>>>>>>> it
> >> >> >>>> >> >>>>>>>>> matches, the taint label will be put and then taint
> >> >> >>>> >> >>>>>>>>> action
> >> >> >>>> >> >>>>>>>>> will
> >> >> >>>> >> >>>>>>>>> start.but
> >> >> >>>> >> >>>>>>>>> when I use it, it seems wrong(the picture showed
> >> >> >>>> >> >>>>>>>>> before):no
> >> >> >>>> >> >>>>>>>>> taint action
> >> >> >>>> >> >>>>>>>>> execute,and i am confused about the tstringsearch's
> >> >> >>>> >> >>>>>>>>> result.
> >> >> >>>> >> >>>>>>>>> how can i use it to analysis?
> >> >> >>>> >> >>>>>>>>> Thanks a lot!
> >> >> >>>> >> >>>>>>>>>
> >> >> >>>> >> >>>>>>>>>
> >> >> >>>> >> >>>>>>>>> 2015-04-08 10:14 GMT+08:00 xiaojuan Li
> >> >> >>>> >> >>>>>>>>> <xiaotan6666 at gmail.com>:
> >> >> >>>> >> >>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>> I get the replay file by running runandroid
> script.
> >> >> >>>> >> >>>>>>>>>> and
> >> >> >>>> >> >>>>>>>>>> i
> >> >> >>>> >> >>>>>>>>>> use
> >> >> >>>> >> >>>>>>>>>> qemu-system-arm command just to do some replay
> work.
> >> >> >>>> >> >>>>>>>>>> I may not understand you at all in this emal.do
> you
> >> >> >>>> >> >>>>>>>>>> mean
> >> >> >>>> >> >>>>>>>>>> that i
> >> >> >>>> >> >>>>>>>>>> should gdb the original program rather than the
> >> >> >>>> >> >>>>>>>>>> record
> >> >> >>>> >> >>>>>>>>>> file?
> >> >> >>>> >> >>>>>>>>>> Thansk
> >> >> >>>> >> >>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>> 2015-04-08 9:52 GMT+08:00 Brendan Dolan-Gavitt
> >> >> >>>> >> >>>>>>>>>> <brendandg at gatech.edu>:
> >> >> >>>> >> >>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>> Hmm. gdb should normally stop when you get a
> >> >> >>>> >> >>>>>>>>>>> segfault.
> >> >> >>>> >> >>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>> Are you by any chance running PANDA using the
> >> >> >>>> >> >>>>>>>>>>> runandroid
> >> >> >>>> >> >>>>>>>>>>> script?
> >> >> >>>> >> >>>>>>>>>>> If so, you will need to instead invoke PANDA
> >> >> >>>> >> >>>>>>>>>>> manually,
> >> >> >>>> >> >>>>>>>>>>> i.e.:
> >> >> >>>> >> >>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>> gdb --args arm-softmmu/qemu-system-arm [...]
> >> >> >>>> >> >>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>> And then once it crashes, type "bt" at the gdb
> >> >> >>>> >> >>>>>>>>>>> prompt
> >> >> >>>> >> >>>>>>>>>>> to
> >> >> >>>> >> >>>>>>>>>>> get a
> >> >> >>>> >> >>>>>>>>>>> backtrace.
> >> >> >>>> >> >>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>> -Brendan
> >> >> >>>> >> >>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>> On Tue, Apr 7, 2015 at 9:47 PM, xiaojuan Li
> >> >> >>>> >> >>>>>>>>>>> <xiaotan6666 at gmail.com> wrote:
> >> >> >>>> >> >>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>> when gdb,it shows:
> >> >> >>>> >> >>>>>>>>>>>> and then i see the log:it shows segfault:
> >> >> >>>> >> >>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>> 2015-04-08 9:03 GMT+08:00 xiaojuan Li
> >> >> >>>> >> >>>>>>>>>>>> <xiaotan6666 at gmail.com>:
> >> >> >>>> >> >>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>> maybe i am wrong.
> >> >> >>>> >> >>>>>>>>>>>>> i use the command
> >> >> >>>> >> >>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>
> line:"taint2:label_mode=binary,query_outgoing_network=1"and
> >> >> >>>> >> >>>>>>>>>>>>> I found that
> >> >> >>>> >> >>>>>>>>>>>>> when i use taint2, after it loads
> >> >> >>>> >> >>>>>>>>>>>>> panda_taint2.so,it
> >> >> >>>> >> >>>>>>>>>>>>> shows:"taint2:instructed not to inline taint
> ops
> >> >> >>>> >> >>>>>>>>>>>>> .success".
> >> >> >>>> >> >>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>> 2015-04-08 8:54 GMT+08:00 xiaojuan Li
> >> >> >>>> >> >>>>>>>>>>>>> <xiaotan6666 at gmail.com>:
> >> >> >>>> >> >>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>> ok.
> >> >> >>>> >> >>>>>>>>>>>>>> 1.I want to use taint plugin to get
> information
> >> >> >>>> >> >>>>>>>>>>>>>> about
> >> >> >>>> >> >>>>>>>>>>>>>> some
> >> >> >>>> >> >>>>>>>>>>>>>> functions(of course, it is closed-source),so I
> >> >> >>>> >> >>>>>>>>>>>>>> think I
> >> >> >>>> >> >>>>>>>>>>>>>> can
> >> >> >>>> >> >>>>>>>>>>>>>> stringsearch
> >> >> >>>> >> >>>>>>>>>>>>>> potential data and then taint them and next I
> >> >> >>>> >> >>>>>>>>>>>>>> can
> >> >> >>>> >> >>>>>>>>>>>>>> locate
> >> >> >>>> >> >>>>>>>>>>>>>> the functions which
> >> >> >>>> >> >>>>>>>>>>>>>> solves these data.
> >> >> >>>> >> >>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>> 2.the command line I used is :
> >> >> >>>> >> >>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>
> stringsearch:name=***;taint2:tainted_instructions=1.
> >> >> >>>> >> >>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>> thanks
> >> >> >>>> >> >>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>> 2015-04-08 8:40 GMT+08:00 Brendan Dolan-Gavitt
> >> >> >>>> >> >>>>>>>>>>>>>> <brendandg at gatech.edu>:
> >> >> >>>> >> >>>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>> Could you provide:
> >> >> >>>> >> >>>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>> 1. What information you're trying to get
> >> >> >>>> >> >>>>>>>>>>>>>>> 2. The command line you're using to run PANDA
> >> >> >>>> >> >>>>>>>>>>>>>>> with
> >> >> >>>> >> >>>>>>>>>>>>>>> the
> >> >> >>>> >> >>>>>>>>>>>>>>> taint2
> >> >> >>>> >> >>>>>>>>>>>>>>> plugin
> >> >> >>>> >> >>>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>> ?
> >> >> >>>> >> >>>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>> Right now I believe taint2 does not produce
> >> >> >>>> >> >>>>>>>>>>>>>>> very
> >> >> >>>> >> >>>>>>>>>>>>>>> much
> >> >> >>>> >> >>>>>>>>>>>>>>> output
> >> >> >>>> >> >>>>>>>>>>>>>>> by default. Instead you use the -pandalog
> >> >> >>>> >> >>>>>>>>>>>>>>> <filename>
> >> >> >>>> >> >>>>>>>>>>>>>>> command line option,
> >> >> >>>> >> >>>>>>>>>>>>>>> and taint2 will write its results there in
> >> >> >>>> >> >>>>>>>>>>>>>>> pandalog
> >> >> >>>> >> >>>>>>>>>>>>>>> format; you can then
> >> >> >>>> >> >>>>>>>>>>>>>>> read them using pandalog_reader (see
> >> >> >>>> >> >>>>>>>>>>>>>>> panda/pandalog_reader.c for details on
> >> >> >>>> >> >>>>>>>>>>>>>>> that tool).
> >> >> >>>> >> >>>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>> -Brendan
> >> >> >>>> >> >>>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>> On Tue, Apr 7, 2015 at 8:32 PM, xiaojuan Li
> >> >> >>>> >> >>>>>>>>>>>>>>> <xiaotan6666 at gmail.com> wrote:
> >> >> >>>> >> >>>>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>>> when I tried taint2,it showed the same error
> >> >> >>>> >> >>>>>>>>>>>>>>>> with
> >> >> >>>> >> >>>>>>>>>>>>>>>> taint1,
> >> >> >>>> >> >>>>>>>>>>>>>>>> the olny difference is that taint2 has no
> >> >> >>>> >> >>>>>>>>>>>>>>>> segfault
> >> >> >>>> >> >>>>>>>>>>>>>>>> error,just uninit taint
> >> >> >>>> >> >>>>>>>>>>>>>>>> plugin.
> >> >> >>>> >> >>>>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>>> 2015-04-08 8:28 GMT+08:00 Brendan
> Dolan-Gavitt
> >> >> >>>> >> >>>>>>>>>>>>>>>> <brendandg at gatech.edu>:
> >> >> >>>> >> >>>>>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>>>> Could you be a little more descriptive
> about
> >> >> >>>> >> >>>>>>>>>>>>>>>>> how
> >> >> >>>> >> >>>>>>>>>>>>>>>>> it
> >> >> >>>> >> >>>>>>>>>>>>>>>>> failed?
> >> >> >>>> >> >>>>>>>>>>>>>>>>> Segfault? Error message? Incorrect output?
> >> >> >>>> >> >>>>>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>>>> -Brendan
> >> >> >>>> >> >>>>>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>>>> On Tue, Apr 7, 2015 at 8:27 PM, xiaojuan Li
> >> >> >>>> >> >>>>>>>>>>>>>>>>> <xiaotan6666 at gmail.com> wrote:
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>>>>> i tried taint2 too,it failed.
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>>>>> 2015-04-07 5:20 GMT+08:00 Leek, Timothy -
> >> >> >>>> >> >>>>>>>>>>>>>>>>>> 0559
> >> >> >>>> >> >>>>>>>>>>>>>>>>>> -
> >> >> >>>> >> >>>>>>>>>>>>>>>>>> MITLL
> >> >> >>>> >> >>>>>>>>>>>>>>>>>> <tleek at ll.mit.edu>:
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>> Also note that the “taint” plugin is
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>> somewhat
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>> defunct.
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>> “taint2” is the one we are actively using
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>> and
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>> developing.
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>> --
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>> Tim Leek
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>> Technical Staff
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>> Cyber System Assessments
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>> MIT Lincoln Laboratory
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>> 781-981-2975
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>> From: Brendan Dolan-Gavitt
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>> <brendandg at gatech.edu>
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>> Date: Monday, April 6, 2015 at 5:18 PM
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>> To: xiaojuan Li <xiaotan6666 at gmail.com>
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>> Cc: "panda-users at mit.edu"
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>> <panda-users at mit.edu>
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>> Subject: Re: [panda-users] taint
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>> segmentation
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>> fault
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>> Could you run that under gdb and provide
> us
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>> with
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>> a
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>> backtrace when it crashes?
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>> -Brendan
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>> On Sunday, April 5, 2015, xiaojuan Li
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>> <xiaotan6666 at gmail.com> wrote:
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>>> Hi,
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>>> excuse me,i have a question about taint
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>>>
> plugin:(stringsearch:name=***;taint:tainted_instructions=1)
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>>> when I started it showed success:
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>>> but when it finished search,it showd
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>>> "uninit
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>>> taint
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>>> plugin segementation fault"
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>>> how can I fix it?
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>>> Thanks a lot!
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>>> --
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>>> wait and hope~~
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>>>>> --
> >> >> >>>> >> >>>>>>>>>>>>>>>>>> wait and hope~~
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>
> _______________________________________________
> >> >> >>>> >> >>>>>>>>>>>>>>>>>> panda-users mailing list
> >> >> >>>> >> >>>>>>>>>>>>>>>>>> panda-users at mit.edu
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>
> http://mailman.mit.edu/mailman/listinfo/panda-users
> >> >> >>>> >> >>>>>>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>>> --
> >> >> >>>> >> >>>>>>>>>>>>>>>> wait and hope~~
> >> >> >>>> >> >>>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>> --
> >> >> >>>> >> >>>>>>>>>>>>>> wait and hope~~
> >> >> >>>> >> >>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>> --
> >> >> >>>> >> >>>>>>>>>>>>> wait and hope~~
> >> >> >>>> >> >>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>> --
> >> >> >>>> >> >>>>>>>>>>>> wait and hope~~
> >> >> >>>> >> >>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>>
> >> >> >>>> >> >>>>>>>>>> --
> >> >> >>>> >> >>>>>>>>>> wait and hope~~
> >> >> >>>> >> >>>>>>>>>
> >> >> >>>> >> >>>>>>>>>
> >> >> >>>> >> >>>>>>>>>
> >> >> >>>> >> >>>>>>>>>
> >> >> >>>> >> >>>>>>>>> --
> >> >> >>>> >> >>>>>>>>> wait and hope~~
> >> >> >>>> >> >>>>>>>>
> >> >> >>>> >> >>>>>>>>
> >> >> >>>> >> >>>>>>>
> >> >> >>>> >> >>>>>>>
> >> >> >>>> >> >>>>>>>
> >> >> >>>> >> >>>>>>> --
> >> >> >>>> >> >>>>>>> wait and hope~~
> >> >> >>>> >> >>>>>>
> >> >> >>>> >> >>>>>>
> >> >> >>>> >> >>>>>>
> >> >> >>>> >> >>>>>>
> >> >> >>>> >> >>>>>> --
> >> >> >>>> >> >>>>>> wait and hope~~
> >> >> >>>> >> >>>>>
> >> >> >>>> >> >>>>>
> >> >> >>>> >> >>>>
> >> >> >>>> >> >>>>
> >> >> >>>> >> >>>>
> >> >> >>>> >> >>>> --
> >> >> >>>> >> >>>> wait and hope~~
> >> >> >>>> >> >>>
> >> >> >>>> >> >>>
> >> >> >>>> >> >>>
> >> >> >>>> >> >>>
> >> >> >>>> >> >>> --
> >> >> >>>> >> >>> wait and hope~~
> >> >> >>>> >> >>
> >> >> >>>> >> >>
> >> >> >>>> >> >
> >> >> >>>> >> >
> >> >> >>>> >> >
> >> >> >>>> >> > --
> >> >> >>>> >> > wait and hope~~
> >> >> >>>> >
> >> >> >>>> >
> >> >> >>>> >
> >> >> >>>> >
> >> >> >>>> > --
> >> >> >>>> > wait and hope~~
> >> >> >>>
> >> >> >>>
> >> >> >>>
> >> >> >>>
> >> >> >>> --
> >> >> >>> wait and hope~~
> >> >> >>
> >> >> >>
> >> >> >>
> >> >> >>
> >> >> >> --
> >> >> >> wait and hope~~
> >> >> >
> >> >> >
> >> >> >
> >> >> >
> >> >> > --
> >> >> > wait and hope~~
> >> >
> >> >
> >> >
> >> >
> >> > --
> >> > wait and hope~~
> >
> >
> >
> >
> > --
> > wait and hope~~
>
--
wait and hope~~
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