AFL++ run 14414611535: crashes or hangs found for read_json() on: aadcb3d9adb561f25d85a447495ffdf6856d972e

[fuzzerofducks]

Issue found by json_multi_param_fuzzer for duckdb commit hash aadcb3d9adb561f25d85a447495ffdf6856d972e

• crashes found: 15
• hangs found: 0

Scenario

duckdb:

• SHA: aadcb3d9adb561f25d85a447495ffdf6856d972e
• version: v1.3.0-dev2370 aadcb3d9ad
• ref: main

fuzzer:

• scenrio: json_multi_param_fuzzer
• CI: duckdblabs/duckdb-fuzzer-ci -> Fuzz DuckDb File Readers -> run 14414611535
• reproduction files

Reproduction

steps:

1. download the json files generated by the fuzzer from https://github.com/duckdb/duckdb-fuzzer/tree/main/fuzz_result_duckdb_file_readers/run_14414611535/main-aadcb3d9adb561f25d85a447495ffdf6856d972e/json_multi_param_fuzzer

git clone --no-checkout git@github.com:duckdb/duckdb-fuzzer.git afl_repr
cd afl_repr
git sparse-checkout set --no-cone fuzz_result_duckdb_file_readers/run_14414611535/main-aadcb3d9adb561f25d85a447495ffdf6856d972e/json_multi_param_fuzzer
git checkout

2. copy the sqllogic test to a local duckdb repo; update the paths in the file to point to the location where you downloaded the json files
   https://github.com/duckdb/duckdb-fuzzer/tree/main/fuzz_result_duckdb_file_readers/run_14414611535/main-aadcb3d9adb561f25d85a447495ffdf6856d972e/json_multi_param_fuzzer/json_multi_param_fuzzer-aadcb3d9adb561f25d85a447495ffdf6856d972e.test

3. run the sqllogic tests to reproduce the error. Note that some crashes do not occur every run, so run multiple times if needed.