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| author | Christian Krinitsin <mail@krinitsin.com> | 2025-05-30 15:56:20 +0200 |
|---|---|---|
| committer | Christian Krinitsin <mail@krinitsin.com> | 2025-05-30 15:56:20 +0200 |
| commit | 904141bfb8d5385b75eb3b7afec1dcda89af65a7 (patch) | |
| tree | c8b5e69b944c9f8b96dbb5afad6214d0406537b2 /classification/test_input/gitlab_semantic_adox | |
| parent | 712310482c3dbef91c3eb6458d1bff82a275fa52 (diff) | |
| download | emulator-bug-study-904141bfb8d5385b75eb3b7afec1dcda89af65a7.tar.gz emulator-bug-study-904141bfb8d5385b75eb3b7afec1dcda89af65a7.zip | |
add tests and include results
Diffstat (limited to 'classification/test_input/gitlab_semantic_adox')
| -rw-r--r-- | classification/test_input/gitlab_semantic_adox | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/classification/test_input/gitlab_semantic_adox b/classification/test_input/gitlab_semantic_adox new file mode 100644 index 00000000..9f4471c9 --- /dev/null +++ b/classification/test_input/gitlab_semantic_adox @@ -0,0 +1,36 @@ +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. |