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sqlite/sqlite-3.26.0-CVE-2019-5827.patch

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Subject: [PATCH] Use the 64-bit memory allocator interfaces in extensions,
whenever possible and Enforce the SQLITE_LIMIT_COLUMN limit on virtual tables
---
ext/fts3/fts3_snippet.c | 7 ++++---
ext/fts3/fts3_test.c | 6 +++---
ext/fts3/fts3_tokenize_vtab.c | 2 +-
ext/fts3/fts3_tokenizer.c | 4 ++--
ext/fts3/fts3_write.c | 19 ++++++++++---------
ext/fts5/fts5_tokenize.c | 2 +-
ext/rtree/geopoly.c | 20 ++++++++++----------
src/build.c | 8 ++++----
src/expr.c | 2 +-
src/main.c | 2 +-
src/test_fs.c | 2 +-
src/util.c | 2 +-
src/vdbeaux.c | 8 +++++---
src/vdbesort.c | 4 ++--
src/vtab.c | 25 +++++++++++++++----------
15 files changed, 61 insertions(+), 52 deletions(-)
diff --git a/ext/fts3/fts3_snippet.c b/ext/fts3/fts3_snippet.c
index 5778620..efffff3 100644
--- a/ext/fts3/fts3_snippet.c
+++ b/ext/fts3/fts3_snippet.c
@@ -130,10 +130,11 @@ struct StrBuffer {
*/
static MatchinfoBuffer *fts3MIBufferNew(int nElem, const char *zMatchinfo){
MatchinfoBuffer *pRet;
- int nByte = sizeof(u32) * (2*nElem + 1) + sizeof(MatchinfoBuffer);
- int nStr = (int)strlen(zMatchinfo);
+ sqlite3_int64 nByte = sizeof(u32) * (2*(sqlite3_int64)nElem + 1)
+ + sizeof(MatchinfoBuffer);
+ sqlite3_int64 nStr = strlen(zMatchinfo);
- pRet = sqlite3_malloc(nByte + nStr+1);
+ pRet = sqlite3_malloc64(nByte + nStr+1);
if( pRet ){
memset(pRet, 0, nByte);
pRet->aMatchinfo[0] = (u8*)(&pRet->aMatchinfo[1]) - (u8*)pRet;
diff --git a/ext/fts3/fts3_test.c b/ext/fts3/fts3_test.c
index a48a556..0b4edcc 100644
--- a/ext/fts3/fts3_test.c
+++ b/ext/fts3/fts3_test.c
@@ -448,14 +448,14 @@ static int testTokenizerNext(
}else{
/* Advance to the end of the token */
const char *pToken = p;
- int nToken;
+ sqlite3_int64 nToken;
while( p<pEnd && testIsTokenChar(*p) ) p++;
- nToken = (int)(p-pToken);
+ nToken = (sqlite3_int64)(p-pToken);
/* Copy the token into the buffer */
if( nToken>pCsr->nBuffer ){
sqlite3_free(pCsr->aBuffer);
- pCsr->aBuffer = sqlite3_malloc(nToken);
+ pCsr->aBuffer = sqlite3_malloc64(nToken);
}
if( pCsr->aBuffer==0 ){
rc = SQLITE_NOMEM;
diff --git a/ext/fts3/fts3_tokenize_vtab.c b/ext/fts3/fts3_tokenize_vtab.c
index a3d24bc..5b4085b 100644
--- a/ext/fts3/fts3_tokenize_vtab.c
+++ b/ext/fts3/fts3_tokenize_vtab.c
@@ -346,7 +346,7 @@ static int fts3tokFilterMethod(
if( idxNum==1 ){
const char *zByte = (const char *)sqlite3_value_text(apVal[0]);
int nByte = sqlite3_value_bytes(apVal[0]);
- pCsr->zInput = sqlite3_malloc(nByte+1);
+ pCsr->zInput = sqlite3_malloc64(nByte+1);
if( pCsr->zInput==0 ){
rc = SQLITE_NOMEM;
}else{
diff --git a/ext/fts3/fts3_tokenizer.c b/ext/fts3/fts3_tokenizer.c
index bfc36af..fe2003e 100644
--- a/ext/fts3/fts3_tokenizer.c
+++ b/ext/fts3/fts3_tokenizer.c
@@ -194,8 +194,8 @@ int sqlite3Fts3InitTokenizer(
int iArg = 0;
z = &z[n+1];
while( z<zEnd && (NULL!=(z = (char *)sqlite3Fts3NextToken(z, &n))) ){
- int nNew = sizeof(char *)*(iArg+1);
- char const **aNew = (const char **)sqlite3_realloc((void *)aArg, nNew);
+ sqlite3_int64 nNew = sizeof(char *)*(iArg+1);
+ char const **aNew = (const char **)sqlite3_realloc64((void *)aArg, nNew);
if( !aNew ){
sqlite3_free(zCopy);
sqlite3_free((void *)aArg);
diff --git a/ext/fts3/fts3_write.c b/ext/fts3/fts3_write.c
index d57d265..5330b4c 100644
--- a/ext/fts3/fts3_write.c
+++ b/ext/fts3/fts3_write.c
@@ -1744,8 +1744,9 @@ int sqlite3Fts3SegReaderPending(
}
if( nElem>0 ){
- int nByte = sizeof(Fts3SegReader) + (nElem+1)*sizeof(Fts3HashElem *);
- pReader = (Fts3SegReader *)sqlite3_malloc(nByte);
+ sqlite3_int64 nByte;
+ nByte = sizeof(Fts3SegReader) + (nElem+1)*sizeof(Fts3HashElem *);
+ pReader = (Fts3SegReader *)sqlite3_malloc64(nByte);
if( !pReader ){
rc = SQLITE_NOMEM;
}else{
@@ -3357,7 +3358,7 @@ static void fts3InsertDocsize(
int rc; /* Result code from subfunctions */
if( *pRC ) return;
- pBlob = sqlite3_malloc( 10*p->nColumn );
+ pBlob = sqlite3_malloc64( 10*(sqlite3_int64)p->nColumn );
if( pBlob==0 ){
*pRC = SQLITE_NOMEM;
return;
@@ -3407,7 +3408,7 @@ static void fts3UpdateDocTotals(
const int nStat = p->nColumn+2;
if( *pRC ) return;
- a = sqlite3_malloc( (sizeof(u32)+10)*nStat );
+ a = sqlite3_malloc64( (sizeof(u32)+10)*(sqlite3_int64)nStat );
if( a==0 ){
*pRC = SQLITE_NOMEM;
return;
@@ -3528,8 +3529,8 @@ static int fts3DoRebuild(Fts3Table *p){
}
if( rc==SQLITE_OK ){
- int nByte = sizeof(u32) * (p->nColumn+1)*3;
- aSz = (u32 *)sqlite3_malloc(nByte);
+ sqlite3_int64 nByte = sizeof(u32) * ((sqlite3_int64)p->nColumn+1)*3;
+ aSz = (u32 *)sqlite3_malloc64(nByte);
if( aSz==0 ){
rc = SQLITE_NOMEM;
}else{
@@ -3595,12 +3596,12 @@ static int fts3IncrmergeCsr(
){
int rc; /* Return Code */
sqlite3_stmt *pStmt = 0; /* Statement used to read %_segdir entry */
- int nByte; /* Bytes allocated at pCsr->apSegment[] */
+ sqlite3_int64 nByte; /* Bytes allocated at pCsr->apSegment[] */
/* Allocate space for the Fts3MultiSegReader.aCsr[] array */
memset(pCsr, 0, sizeof(*pCsr));
nByte = sizeof(Fts3SegReader *) * nSeg;
- pCsr->apSegment = (Fts3SegReader **)sqlite3_malloc(nByte);
+ pCsr->apSegment = (Fts3SegReader **)sqlite3_malloc64(nByte);
if( pCsr->apSegment==0 ){
rc = SQLITE_NOMEM;
@@ -5591,7 +5592,7 @@ int sqlite3Fts3UpdateMethod(
}
/* Allocate space to hold the change in document sizes */
- aSzDel = sqlite3_malloc( sizeof(aSzDel[0])*(p->nColumn+1)*2 );
+ aSzDel = sqlite3_malloc64(sizeof(aSzDel[0])*((sqlite3_int64)p->nColumn+1)*2);
if( aSzDel==0 ){
rc = SQLITE_NOMEM;
goto update_out;
diff --git a/ext/fts5/fts5_tokenize.c b/ext/fts5/fts5_tokenize.c
index af2bc22..029efc5 100644
--- a/ext/fts5/fts5_tokenize.c
+++ b/ext/fts5/fts5_tokenize.c
@@ -363,7 +363,7 @@ static int fts5UnicodeCreate(
p->bRemoveDiacritic = 1;
p->nFold = 64;
- p->aFold = sqlite3_malloc(p->nFold * sizeof(char));
+ p->aFold = sqlite3_malloc64(p->nFold * sizeof(char));
if( p->aFold==0 ){
rc = SQLITE_NOMEM;
}
diff --git a/ext/rtree/geopoly.c b/ext/rtree/geopoly.c
index f6a31f5..7b97f9b 100644
--- a/ext/rtree/geopoly.c
+++ b/ext/rtree/geopoly.c
@@ -261,7 +261,7 @@ static GeoPoly *geopolyParseJson(const unsigned char *z, int *pRc){
GeoPoly *pOut;
int x = 1;
s.nVertex--; /* Remove the redundant vertex at the end */
- pOut = sqlite3_malloc64( GEOPOLY_SZ(s.nVertex) );
+ pOut = sqlite3_malloc64( GEOPOLY_SZ((sqlite3_int64)s.nVertex) );
x = 1;
if( pOut==0 ) goto parse_json_err;
pOut->nVertex = s.nVertex;
@@ -644,7 +644,7 @@ static GeoPoly *geopolyBBox(
if( pRc ) *pRc = SQLITE_OK;
if( aCoord==0 ){
geopolyBboxFill:
- pOut = sqlite3_realloc(p, GEOPOLY_SZ(4));
+ pOut = sqlite3_realloc64(p, GEOPOLY_SZ(4));
if( pOut==0 ){
sqlite3_free(p);
if( context ) sqlite3_result_error_nomem(context);
@@ -1040,9 +1040,9 @@ static GeoSegment *geopolySortSegmentsByYAndC(GeoSegment *pList){
** Determine the overlap between two polygons
*/
static int geopolyOverlap(GeoPoly *p1, GeoPoly *p2){
- int nVertex = p1->nVertex + p2->nVertex + 2;
+ sqlite3_int64 nVertex = p1->nVertex + p2->nVertex + 2;
GeoOverlap *p;
- int nByte;
+ sqlite3_int64 nByte;
GeoEvent *pThisEvent;
double rX;
int rc = 0;
@@ -1054,7 +1054,7 @@ static int geopolyOverlap(GeoPoly *p1, GeoPoly *p2){
nByte = sizeof(GeoEvent)*nVertex*2
+ sizeof(GeoSegment)*nVertex
+ sizeof(GeoOverlap);
- p = sqlite3_malloc( nByte );
+ p = sqlite3_malloc64( nByte );
if( p==0 ) return -1;
p->aEvent = (GeoEvent*)&p[1];
p->aSegment = (GeoSegment*)&p->aEvent[nVertex*2];
@@ -1213,8 +1213,8 @@ static int geopolyInit(
){
int rc = SQLITE_OK;
Rtree *pRtree;
- int nDb; /* Length of string argv[1] */
- int nName; /* Length of string argv[2] */
+ sqlite3_int64 nDb; /* Length of string argv[1] */
+ sqlite3_int64 nName; /* Length of string argv[2] */
sqlite3_str *pSql;
char *zSql;
int ii;
@@ -1222,9 +1222,9 @@ static int geopolyInit(
sqlite3_vtab_config(db, SQLITE_VTAB_CONSTRAINT_SUPPORT, 1);
/* Allocate the sqlite3_vtab structure */
- nDb = (int)strlen(argv[1]);
- nName = (int)strlen(argv[2]);
- pRtree = (Rtree *)sqlite3_malloc(sizeof(Rtree)+nDb+nName+2);
+ nDb = strlen(argv[1]);
+ nName = strlen(argv[2]);
+ pRtree = (Rtree *)sqlite3_malloc64(sizeof(Rtree)+nDb+nName+2);
if( !pRtree ){
return SQLITE_NOMEM;
}
diff --git a/src/build.c b/src/build.c
index afe4171..1dc2614 100644
--- a/src/build.c
+++ b/src/build.c
@@ -3760,9 +3760,9 @@ void *sqlite3ArrayAllocate(
int *pIdx /* Write the index of a new slot here */
){
char *z;
- int n = *pnEntry;
+ sqlite3_int64 n = *pnEntry;
if( (n & (n-1))==0 ){
- int sz = (n==0) ? 1 : 2*n;
+ sqlite3_int64 sz = (n==0) ? 1 : 2*n;
void *pNew = sqlite3DbRealloc(db, pArray, sz*szEntry);
if( pNew==0 ){
*pIdx = -1;
@@ -3870,7 +3870,7 @@ SrcList *sqlite3SrcListEnlarge(
/* Allocate additional space if needed */
if( (u32)pSrc->nSrc+nExtra>pSrc->nAlloc ){
SrcList *pNew;
- int nAlloc = pSrc->nSrc*2+nExtra;
+ sqlite3_int64 nAlloc = 2*(sqlite3_int64)pSrc->nSrc+nExtra;
int nGot;
pNew = sqlite3DbRealloc(db, pSrc,
sizeof(*pSrc) + (nAlloc-1)*sizeof(pSrc->a[0]) );
@@ -4612,7 +4612,7 @@ With *sqlite3WithAdd(
}
if( pWith ){
- int nByte = sizeof(*pWith) + (sizeof(pWith->a[1]) * pWith->nCte);
+ sqlite3_int64 nByte = sizeof(*pWith) + (sizeof(pWith->a[1]) * pWith->nCte);
pNew = sqlite3DbRealloc(db, pWith, nByte);
}else{
pNew = sqlite3DbMallocZero(db, sizeof(*pWith));
diff --git a/src/expr.c b/src/expr.c
index 5f98f76..d64b8eb 100644
--- a/src/expr.c
+++ b/src/expr.c
@@ -1547,7 +1547,7 @@ ExprList *sqlite3ExprListAppend(
}else if( (pList->nExpr & (pList->nExpr-1))==0 ){
ExprList *pNew;
pNew = sqlite3DbRealloc(db, pList,
- sizeof(*pList)+(2*pList->nExpr - 1)*sizeof(pList->a[0]));
+ sizeof(*pList)+(2*(sqlite3_int64)pList->nExpr-1)*sizeof(pList->a[0]));
if( pNew==0 ){
goto no_mem;
}
diff --git a/src/main.c b/src/main.c
index 46c8346..434b898 100644
--- a/src/main.c
+++ b/src/main.c
@@ -698,7 +698,7 @@ static int setupLookaside(sqlite3 *db, void *pBuf, int sz, int cnt){
pStart = 0;
}else if( pBuf==0 ){
sqlite3BeginBenignMalloc();
- pStart = sqlite3Malloc( sz*cnt ); /* IMP: R-61949-35727 */
+ pStart = sqlite3Malloc( sz*(sqlite3_int64)cnt ); /* IMP: R-61949-35727 */
sqlite3EndBenignMalloc();
if( pStart ) cnt = sqlite3MallocSize(pStart)/sz;
}else{
diff --git a/src/test_fs.c b/src/test_fs.c
index 8192beb..1feea46 100644
--- a/src/test_fs.c
+++ b/src/test_fs.c
@@ -744,7 +744,7 @@ static int fsColumn(sqlite3_vtab_cursor *cur, sqlite3_context *ctx, int i){
fstat(fd, &sbuf);
if( sbuf.st_size>=pCur->nAlloc ){
- int nNew = sbuf.st_size*2;
+ sqlite3_int64 nNew = sbuf.st_size*2;
char *zNew;
if( nNew<1024 ) nNew = 1024;
diff --git a/src/util.c b/src/util.c
index 96b0b14..7f2b977 100644
--- a/src/util.c
+++ b/src/util.c
@@ -1572,7 +1572,7 @@ VList *sqlite3VListAdd(
assert( pIn==0 || pIn[0]>=3 ); /* Verify ok to add new elements */
if( pIn==0 || pIn[1]+nInt > pIn[0] ){
/* Enlarge the allocation */
- int nAlloc = (pIn ? pIn[0]*2 : 10) + nInt;
+ sqlite3_int64 nAlloc = (pIn ? 2*(sqlite3_int64)pIn[0] : 10) + nInt;
VList *pOut = sqlite3DbRealloc(db, pIn, nAlloc*sizeof(int));
if( pOut==0 ) return pIn;
if( pIn==0 ) pOut[1] = 2;
diff --git a/src/vdbeaux.c b/src/vdbeaux.c
index b74141b..ffc5d0b 100644
--- a/src/vdbeaux.c
+++ b/src/vdbeaux.c
@@ -125,9 +125,11 @@ static int growOpArray(Vdbe *v, int nOp){
** operation (without SQLITE_TEST_REALLOC_STRESS) is to double the current
** size of the op array or add 1KB of space, whichever is smaller. */
#ifdef SQLITE_TEST_REALLOC_STRESS
- int nNew = (p->nOpAlloc>=512 ? p->nOpAlloc*2 : p->nOpAlloc+nOp);
+ sqlite3_int64 nNew = (p->nOpAlloc>=512 ? 2*(sqlite3_int64)p->nOpAlloc
+ : (sqlite3_int64)p->nOpAlloc+nOp);
#else
- int nNew = (p->nOpAlloc ? p->nOpAlloc*2 : (int)(1024/sizeof(Op)));
+ sqlite3_int64 nNew = (p->nOpAlloc ? 2*(sqlite3_int64)p->nOpAlloc
+ : (sqlite3_int64)1024/sizeof(Op));
UNUSED_PARAMETER(nOp);
#endif
@@ -875,7 +877,7 @@ void sqlite3VdbeScanStatus(
LogEst nEst, /* Estimated number of output rows */
const char *zName /* Name of table or index being scanned */
){
- int nByte = (p->nScan+1) * sizeof(ScanStatus);
+ sqlite3_int64 nByte = (p->nScan+1) * sizeof(ScanStatus);
ScanStatus *aNew;
aNew = (ScanStatus*)sqlite3DbRealloc(p->db, p->aScan, nByte);
if( aNew ){
diff --git a/src/vdbesort.c b/src/vdbesort.c
index b30bc4e..d84a411 100644
--- a/src/vdbesort.c
+++ b/src/vdbesort.c
@@ -537,7 +537,7 @@ static int vdbePmaReadBlob(
/* Extend the p->aAlloc[] allocation if required. */
if( p->nAlloc<nByte ){
u8 *aNew;
- int nNew = MAX(128, p->nAlloc*2);
+ sqlite3_int64 nNew = MAX(128, 2*(sqlite3_int64)p->nAlloc);
while( nByte>nNew ) nNew = nNew*2;
aNew = sqlite3Realloc(p->aAlloc, nNew);
if( !aNew ) return SQLITE_NOMEM_BKPT;
@@ -1829,7 +1829,7 @@ int sqlite3VdbeSorterWrite(
if( nMin>pSorter->nMemory ){
u8 *aNew;
int iListOff = (u8*)pSorter->list.pList - pSorter->list.aMemory;
- int nNew = pSorter->nMemory * 2;
+ sqlite3_int64 nNew = 2 * (sqlite3_int64)pSorter->nMemory;
while( nNew < nMin ) nNew = nNew*2;
if( nNew > pSorter->mxPmaSize ) nNew = pSorter->mxPmaSize;
if( nNew < nMin ) nNew = nMin;
diff --git a/src/vtab.c b/src/vtab.c
index 1b8d283..41c6093 100644
--- a/src/vtab.c
+++ b/src/vtab.c
@@ -302,9 +302,13 @@ void sqlite3VtabClear(sqlite3 *db, Table *p){
** string will be freed automatically when the table is
** deleted.
*/
-static void addModuleArgument(sqlite3 *db, Table *pTable, char *zArg){
- int nBytes = sizeof(char *)*(2+pTable->nModuleArg);
+static void addModuleArgument(Parse *pParse, Table *pTable, char *zArg){
+ sqlite3_int64 nBytes = sizeof(char *)*(2+pTable->nModuleArg);
char **azModuleArg;
+ sqlite3 *db = pParse->db;
+ if( pTable->nModuleArg+3>=db->aLimit[SQLITE_LIMIT_COLUMN] ){
+ sqlite3ErrorMsg(pParse, "too many columns on %s", pTable->zName);
+ }
azModuleArg = sqlite3DbRealloc(db, pTable->azModuleArg, nBytes);
if( azModuleArg==0 ){
sqlite3DbFree(db, zArg);
@@ -339,9 +343,9 @@ void sqlite3VtabBeginParse(
db = pParse->db;
assert( pTable->nModuleArg==0 );
- addModuleArgument(db, pTable, sqlite3NameFromToken(db, pModuleName));
- addModuleArgument(db, pTable, 0);
- addModuleArgument(db, pTable, sqlite3DbStrDup(db, pTable->zName));
+ addModuleArgument(pParse, pTable, sqlite3NameFromToken(db, pModuleName));
+ addModuleArgument(pParse, pTable, 0);
+ addModuleArgument(pParse, pTable, sqlite3DbStrDup(db, pTable->zName));
assert( (pParse->sNameToken.z==pName2->z && pName2->z!=0)
|| (pParse->sNameToken.z==pName1->z && pName2->z==0)
);
@@ -374,7 +378,7 @@ static void addArgumentToVtab(Parse *pParse){
const char *z = (const char*)pParse->sArg.z;
int n = pParse->sArg.n;
sqlite3 *db = pParse->db;
- addModuleArgument(db, pParse->pNewTable, sqlite3DbStrNDup(db, z, n));
+ addModuleArgument(pParse, pParse->pNewTable, sqlite3DbStrNDup(db, z, n));
}
}
@@ -663,7 +667,8 @@ static int growVTrans(sqlite3 *db){
/* Grow the sqlite3.aVTrans array if required */
if( (db->nVTrans%ARRAY_INCR)==0 ){
VTable **aVTrans;
- int nBytes = sizeof(sqlite3_vtab *) * (db->nVTrans + ARRAY_INCR);
+ sqlite3_int64 nBytes = sizeof(sqlite3_vtab*)*
+ ((sqlite3_int64)db->nVTrans + ARRAY_INCR);
aVTrans = sqlite3DbRealloc(db, (void *)db->aVTrans, nBytes);
if( !aVTrans ){
return SQLITE_NOMEM_BKPT;
@@ -1157,9 +1162,9 @@ int sqlite3VtabEponymousTableInit(Parse *pParse, Module *pMod){
pTab->pSchema = db->aDb[0].pSchema;
assert( pTab->nModuleArg==0 );
pTab->iPKey = -1;
- addModuleArgument(db, pTab, sqlite3DbStrDup(db, pTab->zName));
- addModuleArgument(db, pTab, 0);
- addModuleArgument(db, pTab, sqlite3DbStrDup(db, pTab->zName));
+ addModuleArgument(pParse, pTab, sqlite3DbStrDup(db, pTab->zName));
+ addModuleArgument(pParse, pTab, 0);
+ addModuleArgument(pParse, pTab, sqlite3DbStrDup(db, pTab->zName));
rc = vtabCallConstructor(db, pTab, pMod, pModule->xConnect, &zErr);
if( rc ){
sqlite3ErrorMsg(pParse, "%s", zErr);
--
2.30.2
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