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| author | Christian Krinitsin <mail@krinitsin.com> | 2025-06-03 12:04:13 +0000 |
|---|---|---|
| committer | Christian Krinitsin <mail@krinitsin.com> | 2025-06-03 12:04:13 +0000 |
| commit | 256709d2eb3fd80d768a99964be5caa61effa2a0 (patch) | |
| tree | 05b2352fba70923126836a64b6a0de43902e976a /results/classifier/03/semantic/gitlab_semantic_bzhi | |
| parent | 2ab14fa96a6c5484b5e4ba8337551bb8dcc79cc5 (diff) | |
| download | qemu-analysis-256709d2eb3fd80d768a99964be5caa61effa2a0.tar.gz qemu-analysis-256709d2eb3fd80d768a99964be5caa61effa2a0.zip | |
add new classifier result
Diffstat (limited to 'results/classifier/03/semantic/gitlab_semantic_bzhi')
| -rw-r--r-- | results/classifier/03/semantic/gitlab_semantic_bzhi | 46 |
1 files changed, 0 insertions, 46 deletions
diff --git a/results/classifier/03/semantic/gitlab_semantic_bzhi b/results/classifier/03/semantic/gitlab_semantic_bzhi deleted file mode 100644 index 8cbf1d760..000000000 --- a/results/classifier/03/semantic/gitlab_semantic_bzhi +++ /dev/null @@ -1,46 +0,0 @@ -semantic: 0.920 -instruction: 0.623 -boot: 0.220 -network: 0.203 -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. |