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Fix a memory leak in the processing of nested row values. This problem has

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existed every since row values support was added (version 3.15.0, 2016-10-14)
but was only just now detected by OSSFuzz.

FossilOrigin-Name: 2df6bbf1b8ca881c8a465d6624de66fde4c5975ccae6b2f2dda392b137f577de
This commit is contained in:
drh
2018-02-18 17:50:03 +00:00
parent 091881bbb0
commit e28eb64d09
4 changed files with 16 additions and 10 deletions
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16
manifest
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@ -1,5 +1,5 @@
C Port\smutex\senhancments\sfrom\scheck-in\s[f53b8a573b]\sto\sthe\sWin32\simplementation.
D 2018-02-18T00:54:06.860
C Fix\sa\smemory\sleak\sin\sthe\sprocessing\sof\snested\srow\svalues.\s\sThis\sproblem\shas\nexisted\severy\ssince\srow\svalues\ssupport\swas\sadded\s(version\s3.15.0,\s2016-10-14)\nbut\swas\sonly\sjust\snow\sdetected\sby\sOSSFuzz.
D 2018-02-18T17:50:03.135
F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
F Makefile.in 7a3f714b4fcf793108042b7b0a5c720b0b310ec84314d61ba7f3f49f27e550ea
@ -574,7 +574,7 @@ F src/walker.c da987a20d40145c0a03c07d8fefcb2ed363becc7680d0500d9c79915591f5b1f
F src/where.c 7cae47e813393d70c6d327fdf000fcb30f76b1b0b5a5b52ff6402e0c658de32c
F src/whereInt.h 82c04c5075308abbac59180c8bad5ecb45b07453981f60a53f3c7dee21e1e971
F src/wherecode.c e1aaadd8fec650037cfbf27d1b3470338fb3b58fec34d11082df16fe9a08fbd7
F src/whereexpr.c 22dbfd3bf5f6051a61523dd0ebef7a944fb29ee4aa7d2a62feb8aac6ffbbc0eb
F src/whereexpr.c 53532be687e12f3cd314f1e204cd4fbdac7ad250e918a182b048121e16e828ae
F test/8_3_names.test ebbb5cd36741350040fd28b432ceadf495be25b2
F test/affinity2.test a6d901b436328bd67a79b41bb0ac2663918fe3bd
F test/affinity3.test 6a101af2fc945ce2912f6fe54dd646018551710d
@ -1166,7 +1166,7 @@ F test/rollbackfault.test 0e646aeab8840c399cfbfa43daab46fd609cf04a
F test/rowallock.test 3f88ec6819489d0b2341c7a7528ae17c053ab7cc
F test/rowhash.test 0bc1d31415e4575d10cacf31e1a66b5cc0f8be81
F test/rowid.test 5b7509f384f4f6fae1af3c8c104c8ca299fea18d
F test/rowvalue.test 0bc33483f2ef5e69ff4bdd2ae58e36fc598bfd1605fb718c8329bcfc0c10cfd1
F test/rowvalue.test 32861d6a933ded868035f2ec79aeb993a2a46eb7a6d282ae13415a4c2e369463
F test/rowvalue2.test 060d238b7e5639a7c5630cb5e63e311b44efef2b
F test/rowvalue3.test 3068f508753af69884b12125995f023da0dbb256
F test/rowvalue4.test 4b556d7de161a0dd8cff095c336e913986398bea
@ -1707,7 +1707,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
P f53b8a573bfbb48780243d56ca8372165adb1b979731c43d46cd1f8eb7e593f3
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U mistachkin
Z 55a8fbd8babcd295b13a70346a882792
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R 31bbf28c288f447f1b599c906d481780
U drh
Z 61189c02e04bfbbf029a1ddaa686693e

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manifest.uuid
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@ -1 +1 @@
74bb7225d132c80fd5758bb8c120448e3b3e951d0ca2fa0c57cac0a9c6c27045
2df6bbf1b8ca881c8a465d6624de66fde4c5975ccae6b2f2dda392b137f577de

2
src/whereexpr.c
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@ -1291,7 +1291,7 @@ static void exprAnalyze(
exprAnalyze(pSrc, pWC, idxNew);
}
pTerm = &pWC->a[idxTerm];
pTerm->wtFlags = TERM_CODED|TERM_VIRTUAL; /* Disable the original */
pTerm->wtFlags |= TERM_CODED|TERM_VIRTUAL; /* Disable the original */
pTerm->eOperator = 0;
}

6
test/rowvalue.test
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@ -540,4 +540,10 @@ do_execsql_test 19.36 {
SELECT * FROM t1 WHERE (3,32)>=(a,b) ORDER BY a DESC;
} {2 22 1 11}
# 2018-02-18: Memory leak nexted row-value. Detected by OSSFuzz.
#
do_catchsql_test 20.1 {
SELECT 1 WHERE (2,(2,0)) IS (2,(2,0));
} {0 1}
finish_test