diff options
Diffstat (limited to 'results/classifier/011/semantic/gitlab_semantic_bzhi')
| -rw-r--r-- | results/classifier/011/semantic/gitlab_semantic_bzhi | 67 |
1 files changed, 0 insertions, 67 deletions
diff --git a/results/classifier/011/semantic/gitlab_semantic_bzhi b/results/classifier/011/semantic/gitlab_semantic_bzhi deleted file mode 100644 index 24419a0f4..000000000 --- a/results/classifier/011/semantic/gitlab_semantic_bzhi +++ /dev/null @@ -1,67 +0,0 @@ -semantic: 0.534 -device: 0.090 -graphic: 0.089 -debug: 0.048 -other: 0.042 -vnc: 0.033 -permissions: 0.026 -performance: 0.026 -boot: 0.023 -PID: 0.021 -socket: 0.020 -network: 0.020 -files: 0.020 -KVM: 0.009 -semantic: 0.852 -debug: 0.057 -other: 0.017 -files: 0.014 -performance: 0.013 -PID: 0.008 -device: 0.008 -network: 0.005 -KVM: 0.005 -socket: 0.005 -permissions: 0.005 -boot: 0.004 -graphic: 0.004 -vnc: 0.003 - -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. |