diff options
Diffstat (limited to 'results/classifier/phi4:14b/output/instruction/1374')
| -rw-r--r-- | results/classifier/phi4:14b/output/instruction/1374 | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/results/classifier/phi4:14b/output/instruction/1374 b/results/classifier/phi4:14b/output/instruction/1374 new file mode 100644 index 00000000..f23fdda3 --- /dev/null +++ b/results/classifier/phi4:14b/output/instruction/1374 @@ -0,0 +1,25 @@ + + + +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: +1. Compile this code +``` +void main() { + asm("mov rax, 0xb1aa9da2fe33fe3"); + asm("mov rbx, 0x80000000ffffffff"); + asm("mov rcx, 0xf3fce8829b99a5c6"); + asm("bzhi rax, rbx, rcx"); +} +``` +2. 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. |