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Fix a buffer overread in the fts5_structure virtual table (test code).

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FossilOrigin-Name: b837aff79cd159061b46af59eaf96a1a1920eeece27e9e27931cf3387068d96a
This commit is contained in:
dan
2023-07-29 20:13:19 +00:00
parent fb546c0bf4
commit 808cf29b55
3 changed files with 11 additions and 10 deletions
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5
ext/fts5/fts5_index.c
View File

@@ -8092,15 +8092,16 @@ static int fts5structCloseMethod(sqlite3_vtab_cursor *cur){
*/
static int fts5structNextMethod(sqlite3_vtab_cursor *cur){
Fts5StructVcsr *pCsr = (Fts5StructVcsr*)cur;
Fts5Structure *p = pCsr->pStruct;
assert( pCsr->pStruct );
pCsr->iSeg++;
pCsr->iRowid++;
while( pCsr->iSeg>=pCsr->pStruct->aLevel[pCsr->iLevel].nSeg ){
while( pCsr->iLevel<p->nLevel && pCsr->iSeg>=p->aLevel[pCsr->iLevel].nSeg ){
pCsr->iLevel++;
pCsr->iSeg = 0;
}
if( pCsr->iLevel>=pCsr->pStruct->nLevel ){
if( pCsr->iLevel>=p->nLevel ){
fts5StructureRelease(pCsr->pStruct);
pCsr->pStruct = 0;
}

14
manifest
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@@ -1,5 +1,5 @@
C Simplification\sto\sthe\ssqlite3_stmt_explain()\simplementation.
D 2023-07-29T17:05:35.577
C Fix\sa\sbuffer\soverread\sin\sthe\sfts5_structure\svirtual\stable\s(test\scode).
D 2023-07-29T20:13:19.050
F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@ -92,7 +92,7 @@ F ext/fts5/fts5_buffer.c 3001fbabb585d6de52947b44b455235072b741038391f830d6b7292
F ext/fts5/fts5_config.c 054359543566cbff1ba65a188330660a5457299513ac71c53b3a07d934c7b081
F ext/fts5/fts5_expr.c 2473c13542f463cae4b938c498d6193c90d38ea1a2a4f9849c0479736e50d24d
F ext/fts5/fts5_hash.c 65e7707bc8774706574346d18c20218facf87de3599b995963c3e6d6809f203d
F ext/fts5/fts5_index.c a4e35cd126c19df66887801db15ccae7290b51129add3d4cdd31e2d9ea240398
F ext/fts5/fts5_index.c 9f7a24e206072b9deda2b9b6eec8d162128486d1dfad2ada92116faecc623cc8
F ext/fts5/fts5_main.c 2f87ee44fdb21539c264541149f07f70e065d58f37420063e5ddef80ba0f5ede
F ext/fts5/fts5_storage.c 3c9b41fce41b6410f2e8f82eb035c6a29b2560483f773e6dc98cf3cb2e4ddbb5
F ext/fts5/fts5_tcl.c b1445cbe69908c411df8084a10b2485500ac70a9c747cdc8cda175a3da59d8ae
@@ -2049,8 +2049,8 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
P 3848f04e542e2f0f8975e82632af598aac3b60312bd244b0472f7ddf1dda77df
R e759fdc886a125e6d3d4d4dcc3b27f36
U drh
Z 8ab9c0b6287b81d079ea01ec27d5783d
P dd5eb4c7f71c658aff8c2f11ff163c5e79f0ebfd49fd13ca8e28381fe63cc82f
R 0b6893e373afada2996a2e53d25def3d
U dan
Z f4778f5c18f1cf158f159587c61f699b
# Remove this line to create a well-formed Fossil manifest.

2
manifest.uuid
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@@ -1 +1 @@
dd5eb4c7f71c658aff8c2f11ff163c5e79f0ebfd49fd13ca8e28381fe63cc82f
b837aff79cd159061b46af59eaf96a1a1920eeece27e9e27931cf3387068d96a