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| author | Christian Krinitsin <mail@krinitsin.com> | 2025-06-01 21:35:14 +0200 |
|---|---|---|
| committer | Christian Krinitsin <mail@krinitsin.com> | 2025-06-01 21:35:14 +0200 |
| commit | 3e4c5a6261770bced301b5e74233e7866166ea5b (patch) | |
| tree | 9379fddaba693ef8a045da06efee8529baa5f6f4 /classification_output/04/semantic/gitlab_semantic_bzhi | |
| parent | e5634e2806195bee44407853c4bf8776f7abfa4f (diff) | |
| download | qemu-analysis-3e4c5a6261770bced301b5e74233e7866166ea5b.tar.gz qemu-analysis-3e4c5a6261770bced301b5e74233e7866166ea5b.zip | |
clean up repository
Diffstat (limited to 'classification_output/04/semantic/gitlab_semantic_bzhi')
| -rw-r--r-- | classification_output/04/semantic/gitlab_semantic_bzhi | 51 |
1 files changed, 0 insertions, 51 deletions
diff --git a/classification_output/04/semantic/gitlab_semantic_bzhi b/classification_output/04/semantic/gitlab_semantic_bzhi deleted file mode 100644 index 476461d96..000000000 --- a/classification_output/04/semantic/gitlab_semantic_bzhi +++ /dev/null @@ -1,51 +0,0 @@ -semantic: 0.920 -graphic: 0.652 -instruction: 0.623 -device: 0.589 -assembly: 0.406 -vnc: 0.287 -boot: 0.220 -network: 0.203 -socket: 0.198 -mistranslation: 0.171 -other: 0.064 -KVM: 0.064 - -x86 BZHI semantic bug -Description of problem -The result of instruction BZHI is different from the CPU. The value of destination register and SF of EFLAGS are different. - -Steps to reproduce - -Compile this code - - -void main() { - asm("mov rax, 0xb1aa9da2fe33fe3"); - asm("mov rbx, 0x80000000ffffffff"); - asm("mov rcx, 0xf3fce8829b99a5c6"); - asm("bzhi rax, rbx, rcx"); -} - - - -Execute and compare the result with the CPU. - -CPU - -RAX = 0x0x80000000ffffffff -SF = 1 - - -QEMU - -RAX = 0xffffffff -SF = 0 - - - - - - -Additional information -This bug is discovered by research conducted by KAIST SoftSec. |