add 012 result

1 files changed, 48 insertions, 0 deletions

diff --git a/results/classifier/012/x86/gitlab_semantic_bextr b/results/classifier/012/x86/gitlab_semantic_bextr
new file mode 100644
index 000000000..d7d64b9ec
--- /dev/null
+++ b/results/classifier/012/x86/gitlab_semantic_bextr
@@ -0,0 +1,48 @@
+x86: 0.997
+semantic: 0.993
+architecture: 0.859
+register: 0.846
+assembly: 0.800
+graphic: 0.790
+device: 0.717
+debug: 0.603
+boot: 0.516
+vnc: 0.471
+socket: 0.397
+risc-v: 0.396
+mistranslation: 0.337
+arm: 0.336
+PID: 0.234
+performance: 0.233
+network: 0.219
+permissions: 0.188
+kernel virtual machine: 0.127
+TCG: 0.109
+other: 0.099
+files: 0.099
+
+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
+
+Compile this code
+
+void main() {
+    asm("mov rax, 0x17b3693f77fb6e9");
+    asm("mov rbx, 0x8f635a775ad3b9b4");
+    asm("mov rcx, 0xb717b75da9983018");
+    asm("bextr eax, ebx, ecx");
+}
+
+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.