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| author | Christian Krinitsin <mail@krinitsin.com> | 2025-06-05 14:16:30 +0000 |
|---|---|---|
| committer | Christian Krinitsin <mail@krinitsin.com> | 2025-06-05 14:16:30 +0000 |
| commit | 140a79ffee69434ba0fbfde4cefb9fe5e82d93b4 (patch) | |
| tree | 6b9607b2cea6e5fdf90e8964ea1affed408314ca /results/classifier/010/semantic/gitlab_semantic_adox | |
| parent | ee1d992c43e7c9b321bdb14e9a8d15371d9bfda7 (diff) | |
| download | emulator-bug-study-140a79ffee69434ba0fbfde4cefb9fe5e82d93b4.tar.gz emulator-bug-study-140a79ffee69434ba0fbfde4cefb9fe5e82d93b4.zip | |
add results
Diffstat (limited to 'results/classifier/010/semantic/gitlab_semantic_adox')
| -rw-r--r-- | results/classifier/010/semantic/gitlab_semantic_adox | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/results/classifier/010/semantic/gitlab_semantic_adox b/results/classifier/010/semantic/gitlab_semantic_adox new file mode 100644 index 00000000..7919bf6c --- /dev/null +++ b/results/classifier/010/semantic/gitlab_semantic_adox @@ -0,0 +1,65 @@ +semantic: 0.990 +graphic: 0.782 +device: 0.776 +debug: 0.706 +vnc: 0.663 +boot: 0.599 +socket: 0.556 +permissions: 0.500 +performance: 0.460 +network: 0.426 +files: 0.374 +PID: 0.343 +other: 0.286 +KVM: 0.240 +semantic: 0.984 +debug: 0.322 +other: 0.031 +files: 0.023 +performance: 0.015 +PID: 0.007 +device: 0.005 +KVM: 0.003 +network: 0.002 +boot: 0.002 +graphic: 0.002 +permissions: 0.002 +socket: 0.002 +vnc: 0.001 + +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. |