Fix a "jump or move depends on uninitialized value" valgrind error that could

occur in fts5 when dealing with a corrupt database.

FossilOrigin-Name: 3518c09b944c92974939b1de244401afd34de5d9aa75050e5ad55581a94e1e71

ext/fts5/fts5_index.c

@@ -691,6 +691,7 @@ static Fts5Data *fts5DataRead(Fts5Index *p, i64 iRowid){
       }else{
         /* TODO1: Fix this */
         pRet->szLeaf = fts5GetU16(&pRet->p[2]);
+        pRet->p[nByte] = 0x00;
       }
     }
     p->rc = rc;

ext/fts5/test/fts5corrupt3.test

@@ -416,5 +416,93 @@ do_catchsql_test 9.2.2 {
   SELECT * FROM t1('one AND two');
 } {1 {database disk image is malformed}}
 
+#-------------------------------------------------------------------------
+reset_db
+do_test 10.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 32768 pagesize 4096 filename c9.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 07   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 07 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 00 00 00 07 0d d2 00 0f c4 0f 6d   ...............m
+|    112: 0f 02 0e ab 0e 4e 0d f6 0d d2 00 00 00 00 00 00   .....N..........
+|   3536: 00 00 22 07 06 17 11 11 01 31 74 61 62 6c 65 74   .........1tablet
+|   3552: 32 74 32 07 43 52 45 41 54 45 20 54 41 42 4c 45   2t2.CREATE TABLE
+|   3568: 20 74 32 28 78 29 56 06 06 17 1f 1f 01 7d 74 61    t2(x)V.......ta
+|   3584: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   blet1_configt1_c
+|   3600: 6f 6e 66 69 67 06 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
+|   3616: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
+|   3632: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
+|   3648: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 05    WITHOUT ROWID[.
+|   3664: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64   ..!!...tablet1_d
+|   3680: 6f 63 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65   ocsizet1_docsize
+|   3696: 05 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
+|   3712: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
+|   3728: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
+|   3744: 59 2c 20 73 7a 20 42 4c 4f 42 29 55 04 06 17 21   Y, sz BLOB)U...!
+|   3760: 21 01 77 74 61 62 6c 65 74 31 5f 63 6f 6e 74 65   !.wtablet1_conte
+|   3776: 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 04 43 52 45   ntt1_content.CRE
+|   3792: 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63 6f   ATE TABLE 't1_co
+|   3808: 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47 45   ntent'(id INTEGE
+|   3824: 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 63   R PRIMARY KEY, c
+|   3840: 30 29 69 03 07 17 19 19 01 81 2d 74 61 62 6c 65   0)i.......-table
+|   3856: 74 31 5f 69 64 78 74 31 5f 69 64 78 03 43 52 45   t1_idxt1_idx.CRE
+|   3872: 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 69 64   ATE TABLE 't1_id
+|   3888: 78 27 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20   x'(segid, term, 
+|   3904: 70 67 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45   pgno, PRIMARY KE
+|   3920: 59 28 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20   Y(segid, term)) 
+|   3936: 57 49 54 48 4f 55 54 20 52 4f 57 49 44 55 02 07   WITHOUT ROWIDU..
+|   3952: 17 1b 1b 01 81 01 74 61 62 6c 65 74 31 5f 64 61   ......tablet1_da
+|   3968: 74 61 74 31 5f 64 61 74 61 02 43 52 45 41 54 45   tat1_data.CREATE
+|   3984: 20 54 41 42 4c 45 20 27 74 31 5f 64 61 74 61 27    TABLE 't1_data'
+|   4000: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   (id INTEGER PRIM
+|   4016: 41 52 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42   ARY KEY, block B
+|   4032: 4c 4f 42 29 3a 01 06 17 11 11 08 63 74 61 62 6c   LOB):......ctabl
+|   4048: 65 74 31 74 31 43 52 45 41 54 45 20 56 49 52 54   et1t1CREATE VIRT
+|   4064: 55 41 4c 20 54 41 42 4c 45 20 74 31 20 55 53 49   UAL TABLE t1 USI
+|   4080: 4e 47 20 66 74 73 35 28 63 6f 6e 74 65 6e 74 29   NG fts5(content)
+| page 2 offset 4096
+|      0: 0d 00 00 00 03 0f bd 00 0f e8 0f ef 0f bd 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 00 00 00 00 00 24 84 80   .............$..
+|   4032: 80 80 80 01 03 00 4e 00 00 00 1e 06 30 61 62 61   ......N.....0aba
+|   4048: 63 6b 01 02 02 04 02 66 74 02 06 36 b0 a0 10 21   ck.....ft..6...!
+|   4064: d6 f7 07 46 96 d6 97 a6 05 01 03 00 10 03 03 0f   ...F............
+|   4080: 0a 03 00 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 3 offset 8192
+|      0: 0a 00 00 00 01 0f fa 00 0f fa 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
+| page 4 offset 12288
+|      0: 0d 00 00 00 03 0f e0 00 0f f6 0f ec 0f e0 00 00   ................
+|   4064: 0a 03 03 00 1b 61 62 61 6e 64 6f 6e 08 02 03 00   .....abandon....
+|   4080: 17 61 62 61 66 74 08 01 03 00 17 61 62 61 63 6b   .abaft.....aback
+| page 5 offset 16384
+|      0: 0d 00 00 00 03 0f ee 00 0f fa 0f f4 0f ee 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 04 03   ................
+|   4080: 03 00 0e 01 04 02 03 00 0e 01 04 01 03 00 0e 01   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 7 offset 24576
+|      0: 0d 00 00 00 03 0f d6 00 0f f4 0f e1 0f d6 00 00   ................
+|   4048: 00 00 00 00 00 00 09 03 02 1b 72 65 62 75 69 6c   ..........rebuil
+|   4064: 64 11 02 02 2b 69 6e 74 65 67 72 69 74 79 2d 63   d...+integrity-c
+|   4080: 68 65 62 6c 65 74 31 74 31 43 52 45 41 54 45 20   heblet1t1CREATE 
+| page 8 offset 28672
+|      0: 56 49 52 54 55 41 4c 20 54 41 42 4c 45 20 74 31   VIRTUAL TABLE t1
+|     16: 20 55 53 49 4e 47 20 66 74 73 35 28 63 6f 6e 74    USING fts5(cont
+|     32: 65 6e 74 29 0d 00 00 00 03 0f bd 00 0f e8 0f ef   ent)............
+|     48: 0f bd 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+| end c9.db
+  }]
+} {}
+
+do_catchsql_test 10.1 {
+  SELECT * FROM t1 WHERE t1 MATCH 'abandon';
+} {1 {database disk image is malformed}}
+
 sqlite3_fts5_may_be_corrupt 0
 finish_test
+

manifest

@@ -1,5 +1,5 @@
-C Avoid\sa\sleft-shift\sof\sa\snegative\svalue\s(undefined\sbehaviour)\swhen\sdealing\swith\sa\scorrupt\sdatabase\sin\nfts3.
+C Fix\sa\s"jump\sor\smove\sdepends\son\suninitialized\svalue"\svalgrind\serror\sthat\scould\noccur\sin\sfts5\swhen\sdealing\swith\sa\scorrupt\sdatabase.
-D 2018-12-22T09:39:06.609
+D 2018-12-22T13:34:52.273
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
 F Makefile.in d8b254f8bb81bab43c340d70d17dc3babab40fcc8a348c8255881f780a45fee6
@@ -115,7 +115,7 @@ F ext/fts5/fts5_buffer.c 1dd1ec0446b3acfc2d7d407eb894762a461613e2695273f48e449bf
 F ext/fts5/fts5_config.c 5af9c360e99669d29f06492c370892394aba0857
 F ext/fts5/fts5_expr.c 5aef080ba3c8947e22f38ce1ff9fe548e4a740e72b77241f35ed941ae128d2c7
 F ext/fts5/fts5_hash.c 32be400cf761868c9db33efe81a06eb19a17c5402ad477ee9efb51301546dd55
-F ext/fts5/fts5_index.c f1f6365a8861602d6bb7435586a72bdb7a3a2679137c2c3f1bb816415b77bd5b
+F ext/fts5/fts5_index.c 4c85ce5e90461c1400d79384b3f46294801427509fe3449cad2cf2027285d99a
 F ext/fts5/fts5_main.c 287a1a56580df304d7fa2fc1890f85b9cb6ac6b9e7c8af7dfa2151528db4b059
 F ext/fts5/fts5_storage.c 5862f1b785a983acb8420281340f3f424896ab48f396f6fd8540787be7459139
 F ext/fts5/fts5_tcl.c 39bcbae507f594aad778172fa914cad0f585bf92fd3b078c686e249282db0d95
@@ -156,7 +156,7 @@ F ext/fts5/test/fts5connect.test 08030168fc96fc278fa81f28654fb7e90566f33aff269c0
 F ext/fts5/test/fts5content.test 688d5ac7af194ebc67495daea76a69e3cd5480122c2320e72d41241b423b4116
 F ext/fts5/test/fts5corrupt.test 77ae6f41a7eba10620efb921cf7dbe218b0ef232b04519deb43581cb17a57ebe
 F ext/fts5/test/fts5corrupt2.test 7453752ba12ce91690c469a6449d412561cc604b1dec994e16ab132952e7805f
-F ext/fts5/test/fts5corrupt3.test ff9aee403611461e2619d2217c0d7d101a9c0179277c13c8a89516d7cf0dda43
+F ext/fts5/test/fts5corrupt3.test eb9df88d557d85c357edf68996bfcf3eba0162f67c97f35a628d7c66fb675c9a
 F ext/fts5/test/fts5delete.test cbf87e3b8867c4d5cfcaed975c7475fd3f99d072bce2075fcedf43d1f82af775
 F ext/fts5/test/fts5detail.test 31b240dbf6d44ac3507e2f8b65f29fdc12465ffd531212378c7ce1066766f54e
 F ext/fts5/test/fts5determin.test 1b77879b2ae818b5b71c859e534ee334dac088b7cf3ff3bf76a2c82b1c788d11
@@ -1791,7 +1791,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P cad5da1bf5f65ad87d97b72e9a84081fde455ba4085e79943fdf6c0144b1ef83
+P b851d12474035328df8354c7da8d81bc78833c8c704153f9f573c19b47a8487e
-R fa4974486053346e3cdcc2dd08fb0e48
+R 331c7165d434ed017bf2c5d80774c311
 U dan
-Z 02835e6986a76e8d2acf0ae4cd717ca5
+Z cec830535a15c62a74fb034d7cba12a9

manifest.uuid

@@ -1 +1 @@
-b851d12474035328df8354c7da8d81bc78833c8c704153f9f573c19b47a8487e
+3518c09b944c92974939b1de244401afd34de5d9aa75050e5ad55581a94e1e71