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Fix a crash that could follow an OOM condition in the instr() SQL function.

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FossilOrigin-Name: 6e59e903e4e956617bddef0b94e5cae02d724ac8145940b57ab5b0f628759736
This commit is contained in:
dan 2017-03-16 12:11:07 +00:00
parent 6f25936c9c
commit 116b56a2cc
4 changed files with 31 additions and 13 deletions
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18
manifest
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@ -1,5 +1,5 @@
C Updates\sto\sREADME\sfiles\sunder\sthe\sext/\shierarchy.\s\sNo\schanges\sto\scode.
D 2017-03-15T20:27:46.132
C Fix\sa\scrash\sthat\scould\sfollow\san\sOOM\scondition\sin\sthe\sinstr()\sSQL\sfunction.
D 2017-03-16T12:11:07.597
F Makefile.in 9605f4c49eace601d5c12c85dd6e037cc613a6d823e857614ba26b42f1285db0
F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434
F Makefile.msc 1faf9f06aadc9284c212dea7bbc7c0dea7e8337f0287c81001eff500912c790a
@ -36,7 +36,7 @@ F contrib/sqlitecon.tcl 210a913ad63f9f991070821e599d600bd913e0ad
F doc/lemon.html b5a3c07d33ecb8e019ce8f7660fe2dbbad9d7977
F doc/pager-invariants.txt 27fed9a70ddad2088750c4a2b493b63853da2710
F doc/vfs-shm.txt e101f27ea02a8387ce46a05be2b1a902a021d37a
F ext/README.md fd5f78013b0a2bc6f0067afb19e6ad040e89a10179b4f6f03eee58fac5f169bd w ext/README.txt
F ext/README.md fd5f78013b0a2bc6f0067afb19e6ad040e89a10179b4f6f03eee58fac5f169bd
F ext/async/README.txt e12275968f6fde133a80e04387d0e839b0c51f91
F ext/async/sqlite3async.c 0f3070cc3f5ede78f2b9361fb3b629ce200d7d74
F ext/async/sqlite3async.h f489b080af7e72aec0e1ee6f1d98ab6cf2e4dcef
@ -356,7 +356,7 @@ F src/delete.c 0d9d5549d42e79ce4d82ff1db1e6c81e36d2f67c
F src/expr.c f12a581f342a6fd85d14c31e4fb84f16b3dd107f54d7728dddb62cebc79d7ce1
F src/fault.c 460f3e55994363812d9d60844b2a6de88826e007
F src/fkey.c 2e9aabe1aee76273aff8a84ee92c464e095400ae
F src/func.c c67273e1ec08abbdcc14c189892a3ff6eeece86b
F src/func.c 72ed1518f59951daca3b3480331006f074041b4753ab652b46bbdaedb77f6d6c
F src/global.c 4a34512d82fc5aa13c802db06bcfff5e1d3de955
F src/hash.c 63d0ee752a3b92d4695b2b1f5259c4621b2cfebd
F src/hash.h ab34c5c54a9e9de2e790b24349ba5aab3dbb4fd4
@ -955,7 +955,7 @@ F test/mallocI.test 6c23a71df077fa5d387be90e7e669c5b368ca38a
F test/mallocJ.test b5d1839da331d96223e5f458856f8ffe1366f62e
F test/mallocK.test 27cb5566a6e5f2d76f9d4aa2eca45524401fd61e
F test/mallocL.test fb311ff80afddf3b1a75e52289081f4754d901dc
F test/mallocM.test 491001d1e273233048d265ec6d38fdd23745b0284f0c93bc98c94b64451c9c28
F test/mallocM.test 78bbe9d3da84a5c679123cdb40d7b2010b18fc46e13897e4f253c6ba6fbff134
F test/malloc_common.tcl aac62499b76be719fac31e7a3e54a7fd53272e7f
F test/manydb.test 28385ae2087967aa05c38624cec7d96ec74feb3e
F test/mem5.test c6460fba403c5703141348cd90de1c294188c68f
@ -1565,7 +1565,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
P b1b1aa8b69aa80c83aec3380565f0b4ec0b6a6e033537becee098872da362e9a
R ed52dc66e6f47f5c1fac043513c8c66c
U drh
Z 7b77c481896e5fef2abe165dd1f4d320
P 029bc5d224bcbdcca2307710539b133c39e2a27b971c28b294a1f517b80cb418
R e125f692ae2203427c312740eb052007
U dan
Z 43eef8b6f1a791e34b2b986222f188cc

2
manifest.uuid
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@ -1 +1 @@
029bc5d224bcbdcca2307710539b133c39e2a27b971c28b294a1f517b80cb418
6e59e903e4e956617bddef0b94e5cae02d724ac8145940b57ab5b0f628759736

6
src/func.c
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@ -204,9 +204,11 @@ static void instrFunc(
if( typeHaystack==SQLITE_BLOB && typeNeedle==SQLITE_BLOB ){
zHaystack = sqlite3_value_blob(argv[0]);
zNeedle = sqlite3_value_blob(argv[1]);
assert( zNeedle!=0 );
assert( zHaystack!=0 || nHaystack==0 );
isText = 0;
/* The following condition may be true if the arguments passed to this
** function are values returned by zeroblob() or similar and an OOM
** occurs while expanding the blob value. */
if( zNeedle==0 || (nHaystack && zHaystack==0) ) return;
}else{
zHaystack = sqlite3_value_text(argv[0]);
zNeedle = sqlite3_value_text(argv[1]);

18
test/mallocM.test
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@ -21,7 +21,7 @@ sqlite3_db_config_lookaside db 0 0 0
do_execsql_test 1.0 {
CREATE TABLE t1(x);
}
do_faultsim_test 1 -faults oom-t* -body {
do_faultsim_test 1 -faults oom* -body {
execsql {
SELECT 'abc' FROM ( SELECT 'xyz' FROM t1 WHERE (SELECT 1) )
}
@ -29,4 +29,20 @@ do_faultsim_test 1 -faults oom-t* -body {
faultsim_test_result {0 {}}
}
do_execsql_test 2.0.1 { SELECT instr(x'', x'') } {1}
do_execsql_test 2.0.2 { SELECT instr(x'12345678', x'') } {1}
do_execsql_test 2.0.3 { SELECT instr(x'', x'1234') } {0}
do_faultsim_test 2.1 -faults oom* -body {
execsql { SELECT instr (x'00', zeroblob(1)) }
} -test {
faultsim_test_result {0 1}
}
do_faultsim_test 2.2 -faults oom* -body {
execsql { SELECT instr (zeroblob(1), x'00') }
} -test {
faultsim_test_result {0 1}
}
finish_test