[panda-users] taint segmentation fault
xiaojuan Li
xiaotan6666 at gmail.com
Tue Apr 21 03:29:04 EDT 2015
HI Brendan, if you run continue do you encounter this?
****************************************************************************
applying taint labels to search string of length 14 @ p=0xa62e82dd
******************************************************************************
api414-4-20: 2737044888 ( 35.04%) instrs. 1943.11 sec. 14.51 GB ram.
terminate called after throwing an instance of 'std::bad_alloc'
what(): std::bad_alloc
Aborted
i use the gdb to check the core dump,it shows:
Program terminated with signal 6, Aborted.
#0 0x00007fdb33f80165 in raise () from /lib/x86_64-linux-gnu/libc.so.6
seems caused malloc().
2015-04-21 1:18 GMT-04:00 xiaojuan Li <xiaotan6666 at gmail.com>:
> 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~~
>
--
wait and hope~~
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