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mdbx: backport - ITS#8363 Fix off-by-one in mdb_midl_shrink().

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Change-Id: I92a2ed30703f6cd5e91c7f380f1954da4cbe896b
This commit is contained in:
Howard Chu 2016-01-28 04:18:14 +00:00 committed by Leo Yuriev
parent a2db88baf6
commit 0e508f0d3b
2 changed files with 2 additions and 1 deletions
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CHANGES
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@ -7,6 +7,7 @@ LMDB 0.9.18 Release Engineering
Fix MDB_APPENDDUP vs. rewrite(single item) (ITS#8334) Fix MDB_APPENDDUP vs. rewrite(single item) (ITS#8334)
n/a for mdbx - Fix mdb_copy of large files on Windows n/a for mdbx - Fix mdb_copy of large files on Windows
Fix subcursor move after delete (ITS#8355) Fix subcursor move after delete (ITS#8355)
Fix mdb_midl_shrink off-by-one (ITS#8363)
n/a for mdbx - Check for utf8_to_utf16 failures (ITS#7992) n/a for mdbx - Check for utf8_to_utf16 failures (ITS#7992)
Catch strdup failure in mdb_dbi_open Catch strdup failure in mdb_dbi_open
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2
midl.c
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@ -120,7 +120,7 @@ static void mdb_midl_shrink( MDB_IDL *idp )
{ {
MDB_IDL ids = *idp; MDB_IDL ids = *idp;
if (*(--ids) > MDB_IDL_UM_MAX && if (*(--ids) > MDB_IDL_UM_MAX &&
(ids = realloc(ids, (MDB_IDL_UM_MAX+1) * sizeof(MDB_ID)))) (ids = realloc(ids, (MDB_IDL_UM_MAX+2) * sizeof(MDB_ID))))
{ {
*ids++ = MDB_IDL_UM_MAX; *ids++ = MDB_IDL_UM_MAX;
*idp = ids; *idp = ids;