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| Comment: | In the OSSFuzz test module, invoke the progress handler much more frequently so that timeouts are detected punctually even if the test script is running opcodes that individually take a long time (for example, an OP_Function opcode that invokes "randomblob(1.5e6)"). |
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f3b6959c04c4ef7b8ff03582b867012a |
| User & Date: | drh 2017-03-13 13:45:29 |
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2017-03-13
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| 14:30 | Fix a segfault that could occur following an OOM error in the flattenSubquery() routine. (check-in: c6dda3f7 user: dan tags: trunk) | |
| 13:45 | In the OSSFuzz test module, invoke the progress handler much more frequently so that timeouts are detected punctually even if the test script is running opcodes that individually take a long time (for example, an OP_Function opcode that invokes "randomblob(1.5e6)"). (check-in: f3b6959c user: drh tags: trunk) | |
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2017-03-12
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| 20:28 | Fix a possible NULL pointer dereference in following an OOM error in sqlite3ExprIsInteger(). Problem found by OSS-Fuzz. (check-in: 5ec655e8 user: drh tags: trunk) | |
Changes to test/ossfuzz.c.
73 73 74 74 /* Open the database connection. Only use an in-memory database. */ 75 75 rc = sqlite3_open_v2("fuzz.db", &db, 76 76 SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE | SQLITE_OPEN_MEMORY, 0); 77 77 if( rc ) return 0; 78 78 79 79 #ifndef SQLITE_OMIT_PROGRESS_CALLBACK 80 - /* Invoke the progress handler every 500 thousand instructions (approximately 81 - ** 20 to 40 times per second) to check to see if we are taking too long. 80 + /* Invoke the progress handler frequently to check to see if we 81 + ** are taking too long. The progress handler will return true 82 + ** (which will block further processing) if more than 10 seconds have 83 + ** elapsed since the start of the test. 82 84 */ 83 85 iCutoff = timeOfDay() + 10000; /* Now + 10 seconds */ 84 - sqlite3_progress_handler(db, 500000, progress_handler, (void*)&iCutoff); 86 + sqlite3_progress_handler(db, 10, progress_handler, (void*)&iCutoff); 85 87 #endif 86 88 87 89 /* Bit 1 of the selector enables foreign key constraints */ 88 90 sqlite3_db_config(db, SQLITE_DBCONFIG_ENABLE_FKEY, uSelector&1, &rc); 89 91 uSelector >>= 1; 90 92 91 93 /* Remaining bits of the selector determine a limit on the number of