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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/1377 | |
| parent | 61361f925d4914a6608a0076e64cc2399311ed5f (diff) | |
| download | emulator-bug-study-c50b0c4da17b6e83640e4ed2380fffb5f507c846.tar.gz emulator-bug-study-c50b0c4da17b6e83640e4ed2380fffb5f507c846.zip | |
add zero-shot results
Diffstat (limited to 'results/classifier/zero-shot-user-mode/output/instruction/1377')
| -rw-r--r-- | results/classifier/zero-shot-user-mode/output/instruction/1377 | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/results/classifier/zero-shot-user-mode/output/instruction/1377 b/results/classifier/zero-shot-user-mode/output/instruction/1377 new file mode 100644 index 00000000..04937187 --- /dev/null +++ b/results/classifier/zero-shot-user-mode/output/instruction/1377 @@ -0,0 +1,19 @@ +instruction: 0.901 +syscall: 0.049 +runtime: 0.049 + + +x86 CVT* series instructions fault +Description of problem: +For example, CVTSD2SS instruction converts SRC[63:0] double precision floating point to DEST[31:0] single precision floating point. Although the CVTSD2SS instruction uses only 8 bytes, if it overlaps page boundary, I think QEMU tries to access over the valid memory and crashes. +Steps to reproduce: +1. Compile this code +``` +void main() { + mmap(0x555555559000, 0x1000, flag, ~~, 0); + asm("cvtsd2ss xmm1, qword ptr [0x555555559ff8]"); +} +``` +2. Execute. QEMU crashes but CPU does not. +Additional information: +This bug is discovered by research conducted by KAIST SoftSec. |
