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Add comprehensive fuzz testing infrastructure with 6 new targets

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- Fix numpy.c: tautology bug (|| → &&), infinite loop, and missing
  sqlite3_vec_numpy_init call
- Replace tests/fuzz/Makefile: auto-detect clang, add UBSAN, macOS
  ld_classic workaround, generic build rules for all 10 targets
- Add 6 new fuzz targets: shadow-corrupt (corrupted shadow tables),
  vec0-operations (INSERT/DELETE/query sequences), scalar-functions
  (all 18 SQL scalar functions), vec0-create-full (CREATE + lifecycle),
  metadata-columns (metadata/auxiliary columns), vec-each (vec_each TVF)
- Add seed corpora for shadow-corrupt, vec0-operations, exec, and json
- Add fuzz-build/fuzz-quick/fuzz-long targets to root Makefile

All 10 targets verified building and running on macOS ARM (Apple Silicon).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Alex Garcia 2026-03-02 20:33:05 -08:00
parent 9a6bf96b92
commit a61d45183b
24 changed files with 600 additions and 47 deletions
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19
tests/fuzz/numpy.c
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@ -8,6 +8,9 @@
#include "sqlite3.h"
#include <assert.h>
extern int sqlite3_vec_numpy_init(sqlite3 *db, char **pzErrMsg,
const sqlite3_api_routines *pApi);
int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
int rc = SQLITE_OK;
sqlite3 *db;
@ -17,25 +20,17 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
assert(rc == SQLITE_OK);
rc = sqlite3_vec_init(db, NULL, NULL);
assert(rc == SQLITE_OK);
rc = sqlite3_vec_numpy_init(db, NULL, NULL);
assert(rc == SQLITE_OK);
rc = sqlite3_prepare_v2(db, "select * from vec_npy_each(?)", -1, &stmt, NULL);
assert(rc == SQLITE_OK);
sqlite3_bind_blob(stmt, 1, data, size, SQLITE_STATIC);
rc = sqlite3_step(stmt);
if(rc != SQLITE_DONE || rc != SQLITE_ROW) {
sqlite3_finalize(stmt);
sqlite3_close(db);
return -1;
while (rc == SQLITE_ROW) {
rc = sqlite3_step(stmt);
}
while(1) {
if(rc == SQLITE_DONE) break;
if(rc == SQLITE_ROW) continue;
sqlite3_finalize(stmt);
sqlite3_close(db);
return 1;
}
sqlite3_finalize(stmt);
sqlite3_close(db);
return 0;