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| author | Christian Krinitsin <mail@krinitsin.com> | 2025-07-03 19:39:53 +0200 |
|---|---|---|
| committer | Christian Krinitsin <mail@krinitsin.com> | 2025-07-03 19:39:53 +0200 |
| commit | dee4dcba78baf712cab403d47d9db319ab7f95d6 (patch) | |
| tree | 418478faf06786701a56268672f73d6b0b4eb239 /results/classifier/008/semantic/gitlab_semantic_bzhi | |
| parent | 4d9e26c0333abd39bdbd039dcdb30ed429c475ba (diff) | |
| download | qemu-analysis-dee4dcba78baf712cab403d47d9db319ab7f95d6.tar.gz qemu-analysis-dee4dcba78baf712cab403d47d9db319ab7f95d6.zip | |
restructure results
Diffstat (limited to 'results/classifier/008/semantic/gitlab_semantic_bzhi')
| -rw-r--r-- | results/classifier/008/semantic/gitlab_semantic_bzhi | 53 |
1 files changed, 0 insertions, 53 deletions
diff --git a/results/classifier/008/semantic/gitlab_semantic_bzhi b/results/classifier/008/semantic/gitlab_semantic_bzhi deleted file mode 100644 index 253ab4184..000000000 --- a/results/classifier/008/semantic/gitlab_semantic_bzhi +++ /dev/null @@ -1,53 +0,0 @@ -semantic: 0.920 -graphic: 0.652 -device: 0.589 -vnc: 0.287 -debug: 0.256 -boot: 0.220 -network: 0.203 -socket: 0.198 -performance: 0.165 -PID: 0.130 -permissions: 0.069 -other: 0.064 -KVM: 0.064 -files: 0.051 - -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. |