I found an assertion failure while SQLite (latest, 92ade220dcf5c1b7) executes the following queries.

CREATE VIRTUAL TABLE v0 USING zipfile(malform);
SAVEPOINT y;
DELETE FROM v0 WHERE 9;
INSERT INTO v0 DEFAULT VALUES RETURNING 0;

NOTE: You need to run the query twice to trigger the assertion failure. The first run will create a zip file malform and the second run aborts.

Here are the outputs:

sqlite3-asan: shell.c:9168: zipfileAddEntry: Assertion `(pTab->pFirstEntry==0)==(pTab->pLastEntry==0)' failed.

My compilation flags:

export CFLAGS="-g -DSQLITE_DEBUG
            -DSQLITE_ENABLE_TREETRACE
            -DSQLITE_ENABLE_WHERETRACE
            -DSQLITE_ENABLE_CURSOR_HINTS
            -DSQLITE_COUNTOFVIEW_OPTIMIZATION
            -DSQLITE_ENABLE_STAT4"
./configure --enable-all --enable-debug --disable-shared && make