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authorChristian Krinitsin <mail@krinitsin.com>2025-06-08 14:19:33 +0000
committerChristian Krinitsin <mail@krinitsin.com>2025-06-08 14:19:33 +0000
commit9ebc3c7b58e0820054942a2e22b7c48889c3ee26 (patch)
tree4aa48e6571ba9d616b61fde66be09aba9c9594f9 /results/classifier/012/x86/gitlab_semantic_adox
parent3af0ee7c943b43fc12cca126c4cc03eef9f1191a (diff)
downloadqemu-analysis-9ebc3c7b58e0820054942a2e22b7c48889c3ee26.tar.gz
qemu-analysis-9ebc3c7b58e0820054942a2e22b7c48889c3ee26.zip
add 012 result
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+x86: 0.996
+semantic: 0.990
+assembly: 0.913
+architecture: 0.909
+graphic: 0.782
+device: 0.776
+debug: 0.706
+vnc: 0.663
+boot: 0.599
+socket: 0.556
+arm: 0.503
+risc-v: 0.501
+permissions: 0.500
+register: 0.494
+performance: 0.460
+mistranslation: 0.452
+network: 0.426
+files: 0.374
+PID: 0.343
+other: 0.286
+kernel virtual machine: 0.253
+TCG: 0.244
+
+x86 ADOX and ADCX semantic bug
+Description of problem
+The result of instruction ADOX and ADCX are different from the CPU. The value of one of EFLAGS is different.
+
+Steps to reproduce
+
+Compile this code
+
+
+void main() {
+    asm("push 512; popfq;");
+    asm("mov rax, 0xffffffff84fdbf24");
+    asm("mov rbx, 0xb197d26043bec15d");
+    asm("adox eax, ebx");
+}
+
+
+
+Execute and compare the result with the CPU. This problem happens with ADCX, too (with CF).
+
+CPU
+
+OF = 0
+
+
+QEMU
+
+OF = 1
+
+
+
+
+
+
+Additional information
+This bug is discovered by research conducted by KAIST SoftSec.