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| author | Christian Krinitsin <mail@krinitsin.com> | 2025-07-03 19:39:53 +0200 |
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| committer | Christian Krinitsin <mail@krinitsin.com> | 2025-07-03 19:39:53 +0200 |
| commit | dee4dcba78baf712cab403d47d9db319ab7f95d6 (patch) | |
| tree | 418478faf06786701a56268672f73d6b0b4eb239 /results/classifier/semantic-bugs/1374 | |
| parent | 4d9e26c0333abd39bdbd039dcdb30ed429c475ba (diff) | |
| download | qemu-analysis-dee4dcba78baf712cab403d47d9db319ab7f95d6.tar.gz qemu-analysis-dee4dcba78baf712cab403d47d9db319ab7f95d6.zip | |
restructure results
Diffstat (limited to 'results/classifier/semantic-bugs/1374')
| -rw-r--r-- | results/classifier/semantic-bugs/1374 | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/results/classifier/semantic-bugs/1374 b/results/classifier/semantic-bugs/1374 new file mode 100644 index 000000000..0db6a0198 --- /dev/null +++ b/results/classifier/semantic-bugs/1374 @@ -0,0 +1,35 @@ +semantic: 0.993 +instruction: 0.952 +graphic: 0.807 +device: 0.700 +assembly: 0.661 +boot: 0.382 +vnc: 0.341 +socket: 0.314 +network: 0.272 +mistranslation: 0.272 +other: 0.093 +KVM: 0.044 + +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. |