diff options
Diffstat (limited to 'results/classifier/semantic-bugs/semantic/1372')
| -rw-r--r-- | results/classifier/semantic-bugs/semantic/1372 | 33 |
1 files changed, 0 insertions, 33 deletions
diff --git a/results/classifier/semantic-bugs/semantic/1372 b/results/classifier/semantic-bugs/semantic/1372 deleted file mode 100644 index a5a86bb81..000000000 --- a/results/classifier/semantic-bugs/semantic/1372 +++ /dev/null @@ -1,33 +0,0 @@ -semantic: 0.995 -instruction: 0.963 -graphic: 0.860 -device: 0.736 -assembly: 0.728 -mistranslation: 0.574 -vnc: 0.420 -boot: 0.411 -socket: 0.263 -network: 0.171 -other: 0.159 -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. |