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| author | Christian Krinitsin <mail@krinitsin.com> | 2025-07-07 17:23:11 +0000 |
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| committer | Christian Krinitsin <mail@krinitsin.com> | 2025-07-07 17:23:11 +0000 |
| commit | c50b0c4da17b6e83640e4ed2380fffb5f507c846 (patch) | |
| tree | b4f203fce1380e2ea3578a784bb8ee060fe42cbd /results/classifier/zero-shot-user-mode/output/instruction/1374 | |
| parent | 61361f925d4914a6608a0076e64cc2399311ed5f (diff) | |
| download | qemu-analysis-c50b0c4da17b6e83640e4ed2380fffb5f507c846.tar.gz qemu-analysis-c50b0c4da17b6e83640e4ed2380fffb5f507c846.zip | |
add zero-shot results
Diffstat (limited to 'results/classifier/zero-shot-user-mode/output/instruction/1374')
| -rw-r--r-- | results/classifier/zero-shot-user-mode/output/instruction/1374 | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/results/classifier/zero-shot-user-mode/output/instruction/1374 b/results/classifier/zero-shot-user-mode/output/instruction/1374 new file mode 100644 index 000000000..2d173ebf3 --- /dev/null +++ b/results/classifier/zero-shot-user-mode/output/instruction/1374 @@ -0,0 +1,28 @@ +instruction: 0.859 +runtime: 0.080 +syscall: 0.061 + + + +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. |