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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_blsi
parent3af0ee7c943b43fc12cca126c4cc03eef9f1191a (diff)
downloadqemu-analysis-9ebc3c7b58e0820054942a2e22b7c48889c3ee26.tar.gz
qemu-analysis-9ebc3c7b58e0820054942a2e22b7c48889c3ee26.zip
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+x86: 0.997
+semantic: 0.983
+architecture: 0.887
+graphic: 0.873
+assembly: 0.852
+device: 0.790
+socket: 0.764
+vnc: 0.756
+arm: 0.685
+boot: 0.678
+network: 0.672
+performance: 0.656
+risc-v: 0.651
+files: 0.633
+permissions: 0.619
+other: 0.609
+mistranslation: 0.606
+TCG: 0.538
+debug: 0.525
+PID: 0.488
+register: 0.488
+kernel virtual machine: 0.388
+
+x86 BLSI and BLSR semantic bug
+Description of problem
+The result of instruction BLSI and BLSR is different from the CPU. The value of CF is different.
+
+Steps to reproduce
+
+Compile this code
+
+
+void main() {
+    asm("blsi rax, rbx");
+}
+
+
+
+Execute and compare the result with the CPU. The value of CF is exactly the opposite. This problem happens with BLSR, too.
+
+
+Additional information
+This bug is discovered by research conducted by KAIST SoftSec.