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View gist:f6f731199370013b289b
$ rasm2 -a arm -b 16 -D e8b1d0f80090b9f80cc0d9f808900cea010c09ebcc09d9f800c09cea010f02d1
0x00000000 2 e8b1 cbz r0, 0x3e
0x00000002 4 d0f80090 ldr.w sb, [r0]
0x00000006 4 b9f80cc0 ldrh.w ip, [sb, 0xc]
0x0000000a 4 d9f80890 ldr.w sb, [sb, 8]
0x0000000e 4 0cea010c and.w ip, ip, r1
0x00000012 4 09ebcc09 add.w sb, sb, ip, lsl 3
0x00000016 4 d9f800c0 ldr.w ip, [sb]
0x0000001a 4 9cea010f teq.w ip, r1
0x0000001e 2 02d1 bne 0x26
View gist:7a98953de8f7d4b242ad
21:15 < pancake> looks like To*() methods have been deprecated in latest v8.. how can I replace them?
21:16 < caitp> you mean the "Use maybe version" deprecation warning?
21:16 < pancake> yes
21:16 < pancake> well, i dont get that warning i just get an undefined symbol
21:16 < pancake> which is a bit more anoying
21:17 < caitp> an undefined symbol, as in a linker error?
21:17 < pancake> node: symbol lookup error:
/home/pancake/Sync/private/frida-dumper/node_modules/frida/lib/binding/Release/node-v14-linux-x64/frida_binding.node: undefined
symbol: _ZNK2v85Value7ToInt32EPNS_7IsolateE
21:17 < pancake> yes
View gist:b2bab6a065b60f1bea79
> lets attach
/usr/bin/node: symbol lookup error: /home/pancake/Sync/private/frida-dumper/node_modules/frida/lib/binding/Release/node-v14-linux-x64/frida_binding.node: undefined symbol: _ZNK2v85Value9ToIntegerEPNS_7IsolateE
Breakpoint 1, _exit (status=127) at ../sysdeps/unix/sysv/linux/_exit.c:28
28 ../sysdeps/unix/sysv/linux/_exit.c: No such file or directory.
(gdb) bt
#0 _exit (status=127) at ../sysdeps/unix/sysv/linux/_exit.c:28
#1 0x00007ffff7de9e89 in _dl_signal_error (errcode=errcode@entry=0,
objname=objname@entry=0xfc1920 "/home/pancake/Sync/private/frida-dumper/node_modules/frida/lib/binding/Release/node-v14-linux-x64/frida_binding.node", occation=occation@entry=0x7ffff7df65b8 "symbol lookup error",
errstring=errstring@entry=0x7fffffffa150 "undefined symbol: _ZNK2v85Value9ToIntegerEPNS_7IsolateE")
View gist:60a0b89c874d37dcf75f
Sparc instructions not found in Capstone?
-----------------------------------------
RDPSR
RDWIM
RDTBR
WRPSR
WRWIM
WRTBR
RETT
LDA
@radare
radare / gist:fa86e9f2e35c25b34f97
Created Feb 5, 2015
type punned warns in tccgen
View gist:fa86e9f2e35c25b34f97
```
tccgen.c: In function 'is_compatible_func':
tccgen.c:514:5: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
if (FUNC_CALL(s1->r) != FUNC_CALL(s2->r))
^
tccgen.c:514:5: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
tccgen.c: In function 'parse_btype':
tccgen.c:1220:21: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
ad->aligned = FUNC_ALIGN(s->r);
^
View gist:2805bd415688398d0023
$ r2 /tmp/tmpuT4fF8.fil
=================================================================
==6926==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x61d00001c011 at pc 0x7f6add883c57 bp 0x7fffa5cd87a0 sp 0x7fffa5cd7f48
READ of size 11 at 0x61d00001c011 thread T0
#0 0x7f6add883c56 in __interceptor_strncpy (/usr/lib/libasan.so.1+0x2ec56)
#1 0x7f6adc7e50ee in Elf32_r_bin_elf_get_symbols /home/pancake/prg/radare2/libr/..//libr/bin/p/../format/elf/elf.c:1263
#2 0x7f6adc7d3eac in symbols /home/pancake/prg/radare2/libr/..//libr/bin/p/bin_elf.c:248
#3 0x7f6adc79d6ef in r_bin_object_set_items /home/pancake/prg/radare2/libr/bin/bin.c:377
#4 0x7f6adc7a0a49 in r_bin_object_new /home/pancake/prg/radare2/libr/bin/bin.c:855
#5 0x7f6adc7a16a4 in r_bin_file_new_from_bytes /home/pancake/prg/radare2/libr/bin/bin.c:961
@radare
radare / gist:53e8f89506466376439a
Last active Aug 29, 2015
Getrandom got a random syscall number
View gist:53e8f89506466376439a
$ grep -re getrandom /usr/include/
/usr/include/bits/syscall.h:#define SYS_getrandom __NR_getrandom
/usr/include/bits/syscall.h:#define SYS_getrandom __NR_getrandom
/usr/include/bits/syscall.h:#define SYS_getrandom __NR_getrandom
/usr/include/asm/unistd_64.h:#define __NR_getrandom 318
/usr/include/asm/unistd_32.h:#define __NR_getrandom 355
/usr/include/asm/unistd_x32.h:#define __NR_getrandom (__X32_SYSCALL_BIT + 318)
/usr/include/linux/random.h: * Flags for getrandom(2)
/usr/include/asm-generic/unistd.h:#define __NR_getrandom 278
/usr/include/asm-generic/unistd.h:__SYSCALL(__NR_getrandom, sys_getrandom)
@radare
radare / gist:342cefab6b7f732e6638
Created Oct 14, 2014
r2 macros and address information oneliners
View gist:342cefab6b7f732e6638
```
[0x7f90d08b8ce0]> "(foo x,?e $0,?e `ai@$0`)"
[0x7f90d08b8ce0]> .(foo rsp)
rsp
read write flag stack
[0x7f90d08b8ce0]> .(foo rip)
rip
exec read flag
[0x7f90d08b8ce0]>
```
View gist:4e5e90338029c41e4818
[pancake@koega ~]$ r2 -qni test.r2 -
- offset - 0 1 2 3 4 5 6 7 8 9 A B C D E F 0123456789ABCDEF
0x00050000 2020 2023 2050 6572 7661 7369 7665 204c # Pervasive L
0x00050010 6973 7465 6e65 720a 7076 7377 2020 2020 istener.pvsw
- 3397568 malloc://512 @ 0x0 ; rw
- 6 /etc/services @ 0x4000 ; r
- 8 /bin/ls @ 0x50000 ; r
file /bin/ls
fd 8
size 0x1c6c8
View gist:fd1a3ea41d31073311b8
$ r2 -
-- ASLR stands for Age/Sex/Location/Reverser.
[0x00000000]> ae 2,1,==,%z,zf,=,zf,?{,80,}
zf=0x0
zf=0x0
zf=0x0
StackDump:
[1] }
[0] 80
[0x00000000]> ae 1,1,==,%z,zf,=,zf,?{,80,}