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Overview
| Comment: | Set a low limit on the length of strings and blobs in the OSSFuzz module, in an effort to avoid timeouts when the fuzzer does things like "randomblob(1e12)". |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
119d1609fa415894fdd0aa19440ca1c6 |
| User & Date: | drh 2019-01-29 02:37:22 |
Context
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2019-01-29
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| 11:42 | Fix a buffer overrun triggered by a merge operation on a corrupt fts5 database. (check-in: 7ee3cd5b user: dan tags: trunk) | |
| 02:37 | Set a low limit on the length of strings and blobs in the OSSFuzz module, in an effort to avoid timeouts when the fuzzer does things like "randomblob(1e12)". (check-in: 119d1609 user: drh tags: trunk) | |
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2019-01-28
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| 19:06 | Fix the query planner so that it is able to use an index on a CAST expression. (check-in: 2c886f3d user: drh tags: trunk) | |
Changes
Changes to test/ossfuzz.c.
150 150 cx.iCutoffTime = cx.iLastCb + 10000; /* Now + 10 seconds */ 151 151 #ifndef SQLITE_OMIT_PROGRESS_CALLBACK 152 152 sqlite3_progress_handler(cx.db, 10, progress_handler, (void*)&cx); 153 153 #endif 154 154 155 155 /* Set a limit on the maximum size of a prepared statement */ 156 156 sqlite3_limit(cx.db, SQLITE_LIMIT_VDBE_OP, 25000); 157 + 158 + /* Set a limit on the maximum length of a string or BLOB. Without this 159 + ** limit, fuzzers will invoke randomblob(N) for a large N, and the process 160 + ** will timeout trying to generate the huge blob */ 161 + sqlite3_limit(cx.db, SQLITE_LIMIT_LENGTH, 50000); 157 162 158 163 /* Bit 1 of the selector enables foreign key constraints */ 159 164 sqlite3_db_config(cx.db, SQLITE_DBCONFIG_ENABLE_FKEY, uSelector&1, &rc); 160 165 uSelector >>= 1; 161 166 162 167 /* Do not allow debugging pragma statements that might cause excess output */ 163 168 sqlite3_set_authorizer(cx.db, block_debug_pragmas, 0);