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authorChristian Krinitsin <mail@krinitsin.com>2025-07-03 19:39:53 +0200
committerChristian Krinitsin <mail@krinitsin.com>2025-07-03 19:39:53 +0200
commitdee4dcba78baf712cab403d47d9db319ab7f95d6 (patch)
tree418478faf06786701a56268672f73d6b0b4eb239 /results/classifier/zero-shot/011/semantic/gitlab_semantic_adox
parent4d9e26c0333abd39bdbd039dcdb30ed429c475ba (diff)
downloadqemu-analysis-dee4dcba78baf712cab403d47d9db319ab7f95d6.tar.gz
qemu-analysis-dee4dcba78baf712cab403d47d9db319ab7f95d6.zip
restructure results
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+semantic: 0.658
+device: 0.057
+other: 0.049
+graphic: 0.039
+debug: 0.037
+vnc: 0.027
+permissions: 0.024
+boot: 0.020
+performance: 0.017
+PID: 0.017
+files: 0.017
+socket: 0.015
+network: 0.014
+KVM: 0.008
+semantic: 0.837
+debug: 0.071
+other: 0.019
+files: 0.016
+performance: 0.013
+PID: 0.008
+device: 0.007
+KVM: 0.005
+network: 0.005
+graphic: 0.004
+permissions: 0.004
+boot: 0.004
+socket: 0.004
+vnc: 0.002
+
+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.