diff options
Diffstat (limited to 'classification/semantic_issues/gitlab_semantic_adox')
| -rw-r--r-- | classification/semantic_issues/gitlab_semantic_adox | 36 |
1 files changed, 0 insertions, 36 deletions
diff --git a/classification/semantic_issues/gitlab_semantic_adox b/classification/semantic_issues/gitlab_semantic_adox deleted file mode 100644 index 9f4471c9..00000000 --- a/classification/semantic_issues/gitlab_semantic_adox +++ /dev/null @@ -1,36 +0,0 @@ -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. |