A partial fix for ticket #3292. This fixes the original problem but there
are other similar problems lurking in the code still. (CVS 5561) FossilOrigin-Name: 055f173ab1b6fb657bf817faa3a37335d8fa60d5
This commit is contained in:
drh
parent
ec444fc163
commit
ec1fc80ca3
23
manifest
23
manifest
@ -1,5 +1,5 @@
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C Make\ssure\sthe\slookaside\stest\sscript\ssaturates\sthe\slookaside\sbuffer\seven\nwhen\sSQLITE_DEBUG\sis\soff.\s\sTicket\s#3289\s(CVS\s5560)
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D 2008-08-12T15:48:25
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C A\spartial\sfix\sfor\sticket\s#3292.\s\sThis\sfixes\sthe\soriginal\sproblem\sbut\sthere\nare\sother\ssimilar\sproblems\slurking\sin\sthe\scode\sstill.\s(CVS\s5561)
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D 2008-08-13T14:07:40
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F Makefile.arm-wince-mingw32ce-gcc fcd5e9cd67fe88836360bb4f9ef4cb7f8e2fb5a0
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F Makefile.in 2713ea64947be3b35f35d9a3158bb8299c90b019
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F Makefile.linux-gcc d53183f4aa6a9192d249731c90dbdffbd2c68654
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@ -96,7 +96,7 @@ F src/attach.c a85c14612e7e3410e0c3d2e0241832fa9688bd14
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F src/auth.c c8b2ab5c8bad4bd90ed7c294694f48269162c627
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F src/bitvec.c 95c86bd18d8fedf0533f5af196192546e10a7e7d
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F src/btmutex.c 709cad2cdca0afd013f0f612363810e53f59ec53
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F src/btree.c da7491ef06c0209da962e1520bfc5c90b5c5cc96
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F src/btree.c 2ae1092eee58d2d89e5d2f59f711f805dec59bbc
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F src/btree.h 03256ed7ee42b5ecacbe887070b0f8249e7d069d
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F src/btreeInt.h ab18c7b4980314e9e4b402e5dcde09f3c2545576
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F src/build.c 931ed94fd3bbd67b6ac9d5ac6a45dc01e9f01726
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@ -146,7 +146,7 @@ F src/select.c 390d1bdde0c24f0225e369896da8e60ef2aeffbe
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F src/shell.c d83b578a8ccdd3e0e7fef4388a0887ce9f810967
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F src/sqlite.h.in 54e51c22e2294c5989156b0aec87aa44168ac1f0
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F src/sqlite3ext.h 1e3887c9bd3ae66cb599e922824b04cd0d0f2c3e
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F src/sqliteInt.h be39605e2deee45c1004c8bf3927bdab2ec97e0c
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F src/sqliteInt.h df48efd8c4cb7b833bd7299a41c59c6651be0072
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F src/sqliteLimit.h f435e728c6b620ef7312814d660a81f9356eb5c8
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F src/status.c 8caa772cd9310bc297280f7cf0ede4d69ed5b801
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F src/table.c 22744786199c9195720c15a7a42cb97b2e2728d8
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@ -183,11 +183,11 @@ F src/update.c 79b77a3cc8ed5f8903a7f37055fcedd69388dcae
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F src/utf.c c63e6f69082f85c19ab88d62dedaf91d71ac1a50
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F src/util.c afe659ccc05d1f8af9e8631dabfec3ee3a7144af
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F src/vacuum.c ef342828002debc97514617af3424aea8ef8522c
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F src/vdbe.c 2eff8c2206048f73e1ce23a56ed666b0591c56d5
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F src/vdbe.h 647fcf33a551ba10a974162c56846cb9aef2276b
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F src/vdbe.c cda10a8e6ac05c783d6cd8a1d4852754fa73cf3b
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F src/vdbe.h ccca49ce3db3486ae27f9baec68a77ccc29c43a9
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F src/vdbeInt.h 6f04c2bf65a0d5c2bb8318b226278a35d1f7a8f5
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F src/vdbeapi.c f21971516880fd3a10821b2cdd0e64a5a63952c9
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F src/vdbeaux.c 21126e0d319e19125f5e42fceafb17eafe58721c
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F src/vdbeaux.c 7b25fbbbdbd548b71c0a44d2f90fd3d0b06e70b8
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F src/vdbeblob.c f93110888ddc246215e9ba1f831d3d375bfd8355
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F src/vdbefifo.c 20fda2a7c4c0bcee1b90eb7e545fefcdbf2e1de7
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F src/vdbemem.c c37b2a266a49eaf0c0f5080157f9f1a908fdaac3
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@ -250,7 +250,7 @@ F test/corrupt3.test 263e8bb04e2728df832fddf6973cf54c91db0c32
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F test/corrupt4.test acdb01afaedf529004b70e55de1a6f5a05ae7fff
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F test/corrupt5.test 7796d5bdfe155ed824cee9dff371f49da237cfe0
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F test/corrupt6.test e69b877d478224deab7b66844566258cecacd25e
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F test/corrupt7.test 34d3217f2e1b783e68374430e4049a3416e1d9e9
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F test/corrupt7.test 7a3be79b93dba88ba8472d61b57cb6d7b66cb69e
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F test/corrupt8.test 9992ef7f67cefc576b92373f6bf5ab8775280f51
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F test/corrupt9.test 794d284109c65c8f10a2b275479045e02d163bae
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F test/corruptA.test 99e95620b980161cb3e79f06a884a4bb8ae265ff
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@ -545,6 +545,7 @@ F test/tkt3080.test 31a02e87a4c80ed443831c2c5b0e8216ff95ac14
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F test/tkt3093.test fbdbc5b4969244ad11f540759003e361fcaf391f
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F test/tkt3121.test 536df66a02838c26a12fe98639354ca1290ca68b
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F test/tkt3201.test 607d433ad2c1f6a8cb1af55aaca427f63c83191b
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F test/tkt3292.test 962465a0984a3b8c757efe59c2c59144871ee1dd
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F test/tokenize.test ce430a7aed48fc98301611429595883fdfcab5d7
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F test/trace.test 951cd0f5f571e7f36bf7bfe04be70f90fb16fb00
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F test/trans.test 2fd24cd7aa0b879d49a224cbd647d698f1e7ac5c
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@ -617,7 +618,7 @@ F tool/speedtest16.c c8a9c793df96db7e4933f0852abb7a03d48f2e81
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F tool/speedtest2.tcl ee2149167303ba8e95af97873c575c3e0fab58ff
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F tool/speedtest8.c 1dbced29de5f59ba2ebf877edcadf171540374d1
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F tool/speedtest8inst1.c 293327bc76823f473684d589a8160bde1f52c14e
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P 697fe7a3167c22a3232ce154e9d47cf75af613c4
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R bc3261e0e67b2840551eab89813d1cbf
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P d6aacc5dc7c06f97fb5faa3d85a8f2d8ab0dd554
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R 9b480ed8f28854c07567551a082c6f07
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U drh
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Z 492a17374325436959e89a8ba7f54c34
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Z d0f90d7840e7d910b5f941e8ef52ae1d
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@ -1 +1 @@
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d6aacc5dc7c06f97fb5faa3d85a8f2d8ab0dd554
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055f173ab1b6fb657bf817faa3a37335d8fa60d5
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@ -9,7 +9,7 @@
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** May you share freely, never taking more than you give.
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**
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*************************************************************************
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** $Id: btree.c,v 1.495 2008/08/02 17:36:46 danielk1977 Exp $
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** $Id: btree.c,v 1.496 2008/08/13 14:07:40 drh Exp $
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**
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** This file implements a external (disk-based) database using BTrees.
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** See the header comment on "btreeInt.h" for additional information.
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@ -3774,7 +3774,7 @@ int sqlite3BtreeMoveto(
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pCellKey = (void *)fetchPayload(pCur, &available, 0);
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nCellKey = pCur->info.nKey;
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if( available>=nCellKey ){
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c = sqlite3VdbeRecordCompare(nCellKey, pCellKey, pUnKey);
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c = sqlite3VdbeRecordCompare(nCellKey, pCellKey, 0, pUnKey);
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}else{
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pCellKey = sqlite3Malloc( nCellKey );
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if( pCellKey==0 ){
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@ -3782,7 +3782,7 @@ int sqlite3BtreeMoveto(
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goto moveto_finish;
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}
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rc = sqlite3BtreeKey(pCur, 0, nCellKey, (void *)pCellKey);
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c = sqlite3VdbeRecordCompare(nCellKey, pCellKey, pUnKey);
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c = sqlite3VdbeRecordCompare(nCellKey, pCellKey, 0, pUnKey);
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sqlite3_free(pCellKey);
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if( rc ) goto moveto_finish;
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}
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@ -11,7 +11,7 @@
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*************************************************************************
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** Internal interface definitions for SQLite.
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**
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** @(#) $Id: sqliteInt.h,v 1.753 2008/08/12 15:21:12 drh Exp $
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** @(#) $Id: sqliteInt.h,v 1.754 2008/08/13 14:07:40 drh Exp $
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*/
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#ifndef _SQLITEINT_H_
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#define _SQLITEINT_H_
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@ -1046,7 +1046,7 @@ struct KeyInfo {
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sqlite3 *db; /* The database connection */
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u8 enc; /* Text encoding - one of the TEXT_Utf* values */
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u8 incrKey; /* Increase 2nd key by epsilon before comparison */
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u8 prefixIsEqual; /* Treat a prefix as equal */
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u8 ckPrefixOnly; /* Records are equal if shorter is a prefix of longer */
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int nField; /* Number of entries in aColl[] */
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u8 *aSortOrder; /* If defined an aSortOrder[i] is true, sort DESC */
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CollSeq *aColl[1]; /* Collating sequence for each term of the key */
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@ -43,7 +43,7 @@
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** in this file for details. If in doubt, do not deviate from existing
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** commenting and indentation practices when changing or adding code.
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**
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** $Id: vdbe.c,v 1.773 2008/08/11 18:44:58 drh Exp $
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** $Id: vdbe.c,v 1.774 2008/08/13 14:07:40 drh Exp $
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*/
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#include "sqliteInt.h"
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#include <ctype.h>
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@ -3058,10 +3058,10 @@ case OP_Found: { /* jump, in3 */
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assert( pC->isTable==0 );
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assert( pIn3->flags & MEM_Blob );
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if( pOp->opcode==OP_Found ){
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pC->pKeyInfo->prefixIsEqual = 1;
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pC->pKeyInfo->ckPrefixOnly = 1;
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}
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rc = sqlite3BtreeMoveto(pC->pCursor, pIn3->z, 0, pIn3->n, 0, &res);
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pC->pKeyInfo->prefixIsEqual = 0;
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pC->pKeyInfo->ckPrefixOnly = 0;
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if( rc!=SQLITE_OK ){
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break;
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}
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@ -15,7 +15,7 @@
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** or VDBE. The VDBE implements an abstract machine that runs a
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** simple program to access and modify the underlying database.
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**
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** $Id: vdbe.h,v 1.135 2008/08/01 20:10:08 drh Exp $
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** $Id: vdbe.h,v 1.136 2008/08/13 14:07:41 drh Exp $
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*/
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#ifndef _SQLITE_VDBE_H_
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#define _SQLITE_VDBE_H_
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@ -190,7 +190,7 @@ int sqlite3VdbeReleaseMemory(int);
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#endif
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UnpackedRecord *sqlite3VdbeRecordUnpack(KeyInfo*,int,const void*,void*,int);
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void sqlite3VdbeDeleteUnpackedRecord(UnpackedRecord*);
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int sqlite3VdbeRecordCompare(int,const void*,UnpackedRecord*);
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int sqlite3VdbeRecordCompare(int,const void*,int,UnpackedRecord*);
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#ifndef NDEBUG
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@ -14,7 +14,7 @@
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** to version 2.8.7, all this code was combined into the vdbe.c source file.
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** But that file was getting too big so this subroutines were split out.
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**
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** $Id: vdbeaux.c,v 1.405 2008/08/02 03:50:39 drh Exp $
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** $Id: vdbeaux.c,v 1.406 2008/08/13 14:07:41 drh Exp $
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*/
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#include "sqliteInt.h"
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#include <ctype.h>
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@ -2274,18 +2274,32 @@ void sqlite3VdbeDeleteUnpackedRecord(UnpackedRecord *p){
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** sqlite3VdbeParseRecord.
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**
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** Key1 and Key2 do not have to contain the same number of fields.
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** But if the lengths differ, Key2 must be the shorter of the two.
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** The key with fewer fields is usually considered lessor than the
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** longer. However if pPKey2->pKeyInfo->incrKey is set and
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** the common prefixes are equal, then key1 is less than key2.
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** Or if pPKey2->pKeyInfo->ckPrefixOnly flag is set and the
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** prefixes are equal, then the keys are considered to be equal and
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** the parts beyond the common prefix are ignored.
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**
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** The last nHdrIgnore1 bytes of the header of pKey1 are ignored,
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** as if they do not exist. Usually nHdrIgnore1 is 0 which means
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** that we look at the entire key. But sometimes nHdrIgnore1 is 1.
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** When nHdrIgnore1 is 1, the keys are index records and so the last
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** column is a rowid. The type code is always one byte in length.
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** Hence, setting nHdrIgnore1 to 1 means that the final rowid at the
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** end of the record should be treated as if it does not exist.
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**
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** Historical note: In earlier versions of this routine both Key1
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** and Key2 were blobs obtained from OP_MakeRecord. But we found
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** that in typical use the same Key2 would be submitted multiple times
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** in a row. So an optimization was added to parse the Key2 key
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** separately and submit the parsed version. In this way, we avoid
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** parsing the same Key2 multiple times in a row.
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** parsing the same Key2 multiple times.
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*/
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int sqlite3VdbeRecordCompare(
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int nKey1, const void *pKey1,
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UnpackedRecord *pPKey2
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int nKey1, const void *pKey1, /* Left key */
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int nHdrIgnore1, /* Omit this much from end of key1 header */
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UnpackedRecord *pPKey2 /* Right key */
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){
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u32 d1; /* Offset into aKey[] of next data element */
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u32 idx1; /* Offset into aKey[] of next header element */
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@ -2305,6 +2319,7 @@ int sqlite3VdbeRecordCompare(
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idx1 = getVarint32(aKey1, szHdr1);
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d1 = szHdr1;
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szHdr1 -= nHdrIgnore1;
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nField = pKeyInfo->nField;
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while( idx1<szHdr1 && i<pPKey2->nField ){
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u32 serial_type1;
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@ -2328,17 +2343,21 @@ int sqlite3VdbeRecordCompare(
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}
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if( mem1.zMalloc ) sqlite3VdbeMemRelease(&mem1);
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/* One of the keys ran out of fields, but all the fields up to that point
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** were equal. If the incrKey flag is true, then the second key is
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** treated as larger.
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*/
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if( rc==0 ){
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/* rc==0 here means that one of the keys ran out of fields and
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** all the fields up to that point were equal. If the incrKey
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** flag is true, then break the tie by treating the second key
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** as larger. If ckPrefixOnly is true, then keys with common prefixes
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** are considered to be equal. Otherwise, the longer key is the
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** larger. As it happens, the pPKey2 will always be the longer
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** if there is a difference.
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*/
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if( pKeyInfo->incrKey ){
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rc = -1;
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}else if( !pKeyInfo->prefixIsEqual ){
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if( d1<nKey1 ){
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rc = 1;
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}
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}else if( pKeyInfo->ckPrefixOnly ){
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/* Leave rc==0 */
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}else if( idx1<szHdr1 ){
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rc = 1;
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}
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}else if( pKeyInfo->aSortOrder && i<pKeyInfo->nField
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&& pKeyInfo->aSortOrder[i] ){
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@ -2347,7 +2366,7 @@ int sqlite3VdbeRecordCompare(
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return rc;
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}
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/*
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** The argument is an index entry composed using the OP_MakeRecord opcode.
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** The last entry in this record should be an integer (specifically
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@ -2366,7 +2385,7 @@ int sqlite3VdbeIdxRowidLen(const u8 *aKey, int nKey, int *pRowidLen){
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*pRowidLen = sqlite3VdbeSerialTypeLen(typeRowid);
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return SQLITE_OK;
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}
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/*
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** pCur points at an index entry created using the OP_MakeRecord opcode.
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@ -2409,18 +2428,21 @@ int sqlite3VdbeIdxRowid(BtCursor *pCur, i64 *rowid){
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**
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** pKey is either created without a rowid or is truncated so that it
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** omits the rowid at the end. The rowid at the end of the index entry
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** is ignored as well.
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** is ignored as well. Hence, this routine only compares the prefixes
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** of the keys prior to the final rowid, not the entire key.
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**
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** pUnpacked may be an unpacked version of pKey,nKey. If pUnpacked is
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** supplied it is used in place of pKey,nKey.
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*/
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int sqlite3VdbeIdxKeyCompare(
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Cursor *pC, /* The cursor to compare against */
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UnpackedRecord *pUnpacked,
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UnpackedRecord *pUnpacked, /* Unpacked version of pKey and nKey */
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int nKey, const u8 *pKey, /* The key to compare */
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int *res /* Write the comparison result here */
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){
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i64 nCellKey = 0;
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int rc;
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BtCursor *pCur = pC->pCursor;
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int lenRowid;
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Mem m;
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UnpackedRecord *pRec;
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char zSpace[200];
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@ -2433,9 +2455,8 @@ int sqlite3VdbeIdxKeyCompare(
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m.db = 0;
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m.flags = 0;
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m.zMalloc = 0;
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if( (rc = sqlite3VdbeMemFromBtree(pC->pCursor, 0, nCellKey, 1, &m))
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|| (rc = sqlite3VdbeIdxRowidLen((u8*)m.z, m.n, &lenRowid))
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){
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rc = sqlite3VdbeMemFromBtree(pC->pCursor, 0, nCellKey, 1, &m);
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if( rc ){
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return rc;
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}
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if( !pUnpacked ){
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@ -2447,7 +2468,7 @@ int sqlite3VdbeIdxKeyCompare(
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if( pRec==0 ){
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return SQLITE_NOMEM;
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}
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*res = sqlite3VdbeRecordCompare(m.n-lenRowid, m.z, pRec);
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*res = sqlite3VdbeRecordCompare(m.n, m.z, 1, pRec);
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if( !pUnpacked ){
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sqlite3VdbeDeleteUnpackedRecord(pRec);
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}
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@ -14,7 +14,7 @@
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# segfault if it sees a corrupt database file. It specifically focuses
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# on corrupt cell offsets in a btree page.
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#
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# $Id: corrupt7.test,v 1.4 2008/07/26 18:26:10 danielk1977 Exp $
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# $Id: corrupt7.test,v 1.5 2008/08/13 14:07:41 drh Exp $
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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@ -72,31 +72,34 @@ do_test corrupt7-2.2 {
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} {{*** in database main ***
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||||
Corruption detected in cell 15 on page 2}}
|
||||
|
||||
do_test corrupt7-3.1 {
|
||||
execsql {
|
||||
DROP TABLE t1;
|
||||
CREATE TABLE t1(a, b);
|
||||
INSERT INTO t1 VALUES(1, 'one');
|
||||
INSERT INTO t1 VALUES(100, 'one hundred');
|
||||
INSERT INTO t1 VALUES(100000, 'one hundred thousand');
|
||||
CREATE INDEX i1 ON t1(b);
|
||||
}
|
||||
db close
|
||||
|
||||
# Locate the 3rd cell in the index.
|
||||
set cell_offset [hexio_get_int [hexio_read test.db [expr 1024*2 + 12] 2]]
|
||||
incr cell_offset [expr 1024*2]
|
||||
incr cell_offset 1
|
||||
|
||||
# This write corrupts the "header-size" field of the database record
|
||||
# stored in the index cell. At one point this was causing sqlite to
|
||||
# reference invalid memory.
|
||||
hexio_write test.db $cell_offset FFFF7F
|
||||
|
||||
sqlite3 db test.db
|
||||
catchsql {
|
||||
SELECT b FROM t1 WHERE b > 'o' AND b < 'p';
|
||||
}
|
||||
} {1 {database disk image is malformed}}
|
||||
# The code path that was causing the buffer overrun that this test
|
||||
# case was checking for was removed.
|
||||
#
|
||||
#do_test corrupt7-3.1 {
|
||||
# execsql {
|
||||
# DROP TABLE t1;
|
||||
# CREATE TABLE t1(a, b);
|
||||
# INSERT INTO t1 VALUES(1, 'one');
|
||||
# INSERT INTO t1 VALUES(100, 'one hundred');
|
||||
# INSERT INTO t1 VALUES(100000, 'one hundred thousand');
|
||||
# CREATE INDEX i1 ON t1(b);
|
||||
# }
|
||||
# db close
|
||||
#
|
||||
# # Locate the 3rd cell in the index.
|
||||
# set cell_offset [hexio_get_int [hexio_read test.db [expr 1024*2 + 12] 2]]
|
||||
# incr cell_offset [expr 1024*2]
|
||||
# incr cell_offset 1
|
||||
#
|
||||
# # This write corrupts the "header-size" field of the database record
|
||||
# # stored in the index cell. At one point this was causing sqlite to
|
||||
# # reference invalid memory.
|
||||
# hexio_write test.db $cell_offset FFFF7F
|
||||
#
|
||||
# sqlite3 db test.db
|
||||
# catchsql {
|
||||
# SELECT b FROM t1 WHERE b > 'o' AND b < 'p';
|
||||
# }
|
||||
#} {1 {database disk image is malformed}}
|
||||
|
||||
finish_test
|
||||
|
||||
61
test/tkt3292.test
Normal file
61
test/tkt3292.test
Normal file
@ -0,0 +1,61 @@
|
||||
# 2008 August 12
|
||||
#
|
||||
# The author disclaims copyright to this source code. In place of
|
||||
# a legal notice, here is a blessing:
|
||||
#
|
||||
# May you do good and not evil.
|
||||
# May you find forgiveness for yourself and forgive others.
|
||||
# May you share freely, never taking more than you give.
|
||||
#
|
||||
#***********************************************************************
|
||||
# This file implements regression tests for SQLite library.
|
||||
# Specifically, it tests the behavior of the sqlite3VdbeRecordCompare()
|
||||
# routine in cases where the rowid is 0 or 1 in file format 4
|
||||
# (meaning that the rowid has type code 8 or 9 with zero bytes of
|
||||
# data). Ticket #3292.
|
||||
#
|
||||
# $Id: tkt3292.test,v 1.1 2008/08/13 14:07:41 drh Exp $
|
||||
|
||||
set testdir [file dirname $argv0]
|
||||
source $testdir/tester.tcl
|
||||
|
||||
do_test tkt3292-1.1 {
|
||||
execsql {
|
||||
PRAGMA legacy_file_format=OFF;
|
||||
CREATE TABLE t1(a INTEGER PRIMARY KEY, b INT);
|
||||
INSERT INTO t1 VALUES(0, 1);
|
||||
INSERT INTO t1 VALUES(1, 1);
|
||||
INSERT INTO t1 VALUES(2, 1);
|
||||
CREATE INDEX i1 ON t1(b);
|
||||
SELECT * FROM t1 WHERE b>=1;
|
||||
}
|
||||
} {0 1 1 1 2 1}
|
||||
do_test tkt3292-1.2 {
|
||||
execsql {
|
||||
INSERT INTO t1 VALUES(3, 0);
|
||||
INSERT INTO t1 VALUES(4, 2);
|
||||
SELECT * FROM t1 WHERE b>=1;
|
||||
}
|
||||
} {0 1 1 1 2 1 4 2}
|
||||
|
||||
|
||||
do_test tkt3292-2.1 {
|
||||
execsql {
|
||||
CREATE TABLE t2(a INTEGER PRIMARY KEY, b, c, d);
|
||||
INSERT INTO t2 VALUES(0, 1, 'hello', x'012345');
|
||||
INSERT INTO t2 VALUES(1, 1, 'hello', x'012345');
|
||||
INSERT INTO t2 VALUES(2, 1, 'hello', x'012345');
|
||||
CREATE INDEX i2 ON t2(b,c,d);
|
||||
SELECT a FROM t2 WHERE b=1 AND c='hello' AND d>=x'012345';
|
||||
}
|
||||
} {0 1 2}
|
||||
do_test tkt3292-2.2 {
|
||||
execsql {
|
||||
INSERT INTO t2 VALUES(3, 1, 'hello', x'012344');
|
||||
INSERT INTO t2 VALUES(4, 1, 'hello', x'012346');
|
||||
SELECT a FROM t2 WHERE b=1 AND c='hello' AND d>=x'012345';
|
||||
}
|
||||
} {0 1 2 4}
|
||||
|
||||
|
||||
finish_test
|
||||
Loading…
x
Reference in New Issue
Block a user