diff options
Diffstat (limited to 'results/classifier/zero-shot/118/semantic-x86/1372')
| -rw-r--r-- | results/classifier/zero-shot/118/semantic-x86/1372 | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/results/classifier/zero-shot/118/semantic-x86/1372 b/results/classifier/zero-shot/118/semantic-x86/1372 new file mode 100644 index 000000000..96c8dec2f --- /dev/null +++ b/results/classifier/zero-shot/118/semantic-x86/1372 @@ -0,0 +1,80 @@ +x86: 0.998 +semantic: 0.995 +architecture: 0.914 +graphic: 0.860 +register: 0.829 +device: 0.736 +assembly: 0.728 +mistranslation: 0.574 +i386: 0.505 +vnc: 0.420 +boot: 0.411 +risc-v: 0.390 +ppc: 0.382 +debug: 0.352 +permissions: 0.340 +kernel: 0.295 +socket: 0.263 +arm: 0.205 +network: 0.171 +PID: 0.153 +performance: 0.140 +files: 0.125 +peripherals: 0.120 +VMM: 0.095 +KVM: 0.083 +TCG: 0.075 +virtual: 0.058 +hypervisor: 0.028 +user-level: 0.018 +-------------------- +x86: 1.000 +i386: 0.987 +semantic: 0.982 +assembly: 0.973 +debug: 0.546 +register: 0.253 +user-level: 0.131 +kernel: 0.057 +virtual: 0.052 +files: 0.045 +performance: 0.027 +TCG: 0.022 +hypervisor: 0.021 +architecture: 0.014 +PID: 0.014 +network: 0.013 +peripherals: 0.010 +device: 0.009 +VMM: 0.004 +risc-v: 0.004 +permissions: 0.004 +socket: 0.003 +boot: 0.003 +graphic: 0.002 +KVM: 0.002 +ppc: 0.002 +vnc: 0.001 +mistranslation: 0.001 +arm: 0.000 + +x86 BEXTR semantic bug +Description of problem: +The result of instruction BEXTR is different with from the CPU. The value of destination register is different. I think QEMU does not consider the operand size limit. +Steps to reproduce: +1. Compile this code +``` +void main() { + asm("mov rax, 0x17b3693f77fb6e9"); + asm("mov rbx, 0x8f635a775ad3b9b4"); + asm("mov rcx, 0xb717b75da9983018"); + asm("bextr eax, ebx, ecx"); +} +``` +2. Execute and compare the result with the CPU. + - CPU + - RAX = 0x5a + - QEMU + - RAX = 0x635a775a +Additional information: +This bug is discovered by research conducted by KAIST SoftSec. |