diff options
Diffstat (limited to 'results/classifier/zero-shot/108/semantic/1372')
| -rw-r--r-- | results/classifier/zero-shot/108/semantic/1372 | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/results/classifier/zero-shot/108/semantic/1372 b/results/classifier/zero-shot/108/semantic/1372 new file mode 100644 index 000000000..38dc06e68 --- /dev/null +++ b/results/classifier/zero-shot/108/semantic/1372 @@ -0,0 +1,35 @@ +semantic: 0.995 +graphic: 0.860 +device: 0.736 +vnc: 0.420 +boot: 0.411 +debug: 0.352 +permissions: 0.340 +socket: 0.263 +network: 0.171 +other: 0.159 +PID: 0.153 +performance: 0.140 +files: 0.125 +KVM: 0.083 + +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. |