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Make sure the xParseCell and xCellSize methods of the MemPage object are

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initialized consistently even if the page is detected as being corrupt.
dbsqlfuzz fd21f341f3b4f582401d2feb2a1c0c4cc2c26caa.

FossilOrigin-Name: 725a06434b886c96bb816340ef236530672a4593f0ceb3230ce69c8367beb997
This commit is contained in:
drh
2022-03-03 16:48:35 +00:00
parent c9bcc5aab7
commit 4f12271780
3 changed files with 12 additions and 8 deletions
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12
manifest
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@@ -1,5 +1,5 @@
C Fix\sfor\sthe\sproblem\sidentified\sin\s\n[forum:/forumpost/0cd8e058bf|forum\spost\s0cd8e058bf]:\nWhen\sevaluating\san\smulti-index\sOR,\sdo\snot\spush\sdown\sauxiliary\sWHERE\sclause\nterms\sthat\sinvolve\ssubqueries\sinto\sthe\sOR-subqueries.\s\sOtherwise,\sthe\ncovering-index\soptimizer\smight\sconvert\stable-references\sinto\sindex-references\nfor\sthe\sparticular\sOR\sindex\sthat\sis\sactive\sfor\sthe\sbranch\sin\swhich\sthe\nsubquery\ssubroutine\sis\scoded,\sand\sthose\sindex-references\nwill\snot\swork\sif\sthe\ssubquery\ssubroutine\sis\sinvoked\sfrom\sa\sdifferent\sOR\sbranch\nthat\suses\sa\sdifferent\sindex.
D 2022-03-03T15:59:22.986
C Make\ssure\sthe\sxParseCell\sand\sxCellSize\smethods\sof\sthe\sMemPage\sobject\sare\ninitialized\sconsistently\seven\sif\sthe\spage\sis\sdetected\sas\sbeing\scorrupt.\ndbsqlfuzz\sfd21f341f3b4f582401d2feb2a1c0c4cc2c26caa.
D 2022-03-03T16:48:35.284
F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@ -492,7 +492,7 @@ F src/auth.c f4fa91b6a90bbc8e0d0f738aa284551739c9543a367071f55574681e0f24f8cf
F src/backup.c a2891172438e385fdbe97c11c9745676bec54f518d4447090af97189fd8e52d7
F src/bitvec.c 7c849aac407230278445cb069bebc5f89bf2ddd87c5ed9459b070a9175707b3d
F src/btmutex.c 8acc2f464ee76324bf13310df5692a262b801808984c1b79defb2503bbafadb6
F src/btree.c 752fc154c07e03fd77a5426f6d625aa5aeeacd0054e0d5be9a89dd217d8b7f02
F src/btree.c 9a5112589dc9491781bfd4e1b30d79bdab7e7ea3fc37a505e7ca5cc82f01c09a
F src/btree.h 74d64b8f28cfa4a894d14d4ed64fa432cd697b98b61708d4351482ae15913e22
F src/btreeInt.h 1ca477727c5f420a8321208dc5b14d93cb46cec8f941bc49318feb0e00bc961f
F src/build.c 9891c2160886cf7e344d7e8f1f7177f9612916c7c67ffeacd64cb34a92d387a8
@@ -1944,8 +1944,8 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
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P b8226748709de37cfc86414714c20567254e5b320b380e767c322dba69a79d49
R 43ae22005686caeeb8b845d41ecc6632
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R e394f5d71fcf3ab03b849ac8d2f2e010
U drh
Z 98e64c0fcadb781d4eb26d18c4816857
Z 6957f162062fe17752cd0dc465054be9
# Remove this line to create a well-formed Fossil manifest.

2
manifest.uuid
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@@ -1 +1 @@
61a1c6dbd089979cbeb8b0c0c5ee1ab1abcb466be1d21a3a851be73c27e67a6c
725a06434b886c96bb816340ef236530672a4593f0ceb3230ce69c8367beb997

6
src/btree.c
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@@ -1914,7 +1914,6 @@ static int decodeFlags(MemPage *pPage, int flagByte){
pPage->leaf = (u8)(flagByte>>3); assert( PTF_LEAF == 1<<3 );
flagByte &= ~PTF_LEAF;
pPage->childPtrSize = 4-4*pPage->leaf;
pPage->xCellSize = cellSizePtr;
pBt = pPage->pBt;
if( flagByte==(PTF_LEAFDATA | PTF_INTKEY) ){
/* EVIDENCE-OF: R-07291-35328 A value of 5 (0x05) means the page is an
@@ -1944,12 +1943,17 @@ static int decodeFlags(MemPage *pPage, int flagByte){
assert( (PTF_ZERODATA|PTF_LEAF)==10 );
pPage->intKey = 0;
pPage->intKeyLeaf = 0;
pPage->xCellSize = cellSizePtr;
pPage->xParseCell = btreeParseCellPtrIndex;
pPage->maxLocal = pBt->maxLocal;
pPage->minLocal = pBt->minLocal;
}else{
/* EVIDENCE-OF: R-47608-56469 Any other value for the b-tree page type is
** an error. */
pPage->intKey = 0;
pPage->intKeyLeaf = 0;
pPage->xCellSize = cellSizePtr;
pPage->xParseCell = btreeParseCellPtrIndex;
return SQLITE_CORRUPT_PAGE(pPage);
}
pPage->max1bytePayload = pBt->max1bytePayload;