Description of problem: Qt application with unixODBC terminates with message *** buffer overflow detected *** when fetching double precision values from postgreSQL when environment variable LANG=ru_RU.utf8 (actually, when LANG!=C) Version-Release number of selected component (if applicable): unixODBC-2.2.12-2.fc7 How reproducible: postgresql data source (in terms of ODBC) required. assuming one named "a": Steps to Reproduce: 1. launch odbctest 2. Env -> SQLAllocEnv -> Ok 3. Conn -> SQLAllocConnect -> Ok 4. Conn -> SQLConnect -> fill 'a' (i.e. data source name, without quotes) in 'Server' field -> Ok 5. Stmt -> SQLAllocStmt -> Ok 6. Stmt -> SQLExecDirect -> fill 'select 1.5 as a;' (without quotes) in 'SQL Text' field -> Ok 7. Results -> SQLFetch -> Ok 8. Results -> SQLGetData -> select 'SQL_C_DOUBLE' in 'Target Type' field -> Ok Actual results: odbctest termination with message [dumb@octofox ~]$ odbctest *** buffer overflow detected ***: odbctest terminated ======= Backtrace: ========= /lib/libc.so.6(__chk_fail+0x41)[0xc73bb1] /lib/libc.so.6(__strcpy_chk+0x43)[0xc730c3] /usr/lib/libodbcpsql.so(copy_and_convert_field+0xb1a)[0x43769a] /usr/lib/libodbcpsql.so(PG_SQLGetData+0x2a5)[0x44ab45] /usr/lib/libodbcpsql.so(SQLGetData+0x42)[0x44ad52] /usr/lib/libodbc.so.1(SQLGetData+0x17d)[0x20fffd] odbctest[0x807e861] odbctest[0x8107888] /usr/lib/qt-3.3/lib/libqt-mt.so.3 (_ZN7QObject15activate_signalEP15QConnectionListP8QUObject+0xd1)[0x631dc81] /usr/lib/qt-3.3/lib/libqt-mt.so.3(_ZN7QObject15activate_signalEi+0xbd) [0x631e70d] /usr/lib/qt-3.3/lib/libqt-mt.so.3(_ZN7QButton7clickedEv+0x2c)[0x66b40cc] /usr/lib/qt-3.3/lib/libqt-mt.so.3 (_ZN7QButton17mouseReleaseEventEP11QMouseEvent+0xbd)[0x63c26ad] /usr/lib/qt-3.3/lib/libqt-mt.so.3(_ZN7QWidget5eventEP6QEvent+0x3c5)[0x635a3b5] /usr/lib/qt-3.3/lib/libqt-mt.so.3 (_ZN12QApplication14internalNotifyEP7QObjectP6QEvent+0x9b)[0x62b453b] /usr/lib/qt-3.3/lib/libqt-mt.so.3 (_ZN12QApplication6notifyEP7QObjectP6QEvent+0x269)[0x62b5d09] /usr/lib/qt-3.3/lib/libqt-mt.so.3 (_ZN9QETWidget19translateMouseEventEPK7_XEvent+0x576)[0x624b996] /usr/lib/qt-3.3/lib/libqt-mt.so.3 (_ZN12QApplication15x11ProcessEventEP7_XEvent+0x8e6)[0x624a766] /usr/lib/qt-3.3/lib/libqt-mt.so.3(_ZN10QEventLoop13processEventsEj+0x4eb) [0x625c38b] /usr/lib/qt-3.3/lib/libqt-mt.so.3(_ZN10QEventLoop9enterLoopEv+0x50)[0x62cde30] /usr/lib/qt-3.3/lib/libqt-mt.so.3(_ZN12QApplication10enter_loopEv+0x1f) [0x62b40ef] /usr/lib/qt-3.3/lib/libqt-mt.so.3(_ZN7QDialog4execEv+0x75)[0x64c8fc5] odbctest[0x8081138] odbctest[0x810bf2e] /usr/lib/qt-3.3/lib/libqt-mt.so.3 (_ZN7QObject15activate_signalEP15QConnectionListP8QUObject+0x16a)[0x631dd1a] /usr/lib/qt-3.3/lib/libqt-mt.so.3(_ZN7QSignal6signalERK8QVariant+0x8e) [0x66abfce] /usr/lib/qt-3.3/lib/libqt-mt.so.3(_ZN7QSignal8activateEv+0x77)[0x633c2e7] /usr/lib/qt-3.3/lib/libqt-mt.so.3 (_ZN10QPopupMenu17mouseReleaseEventEP11QMouseEvent+0x475)[0x643e195] /usr/lib/qt-3.3/lib/libqt-mt.so.3(_ZN7QWidget5eventEP6QEvent+0x3c5)[0x635a3b5] /usr/lib/qt-3.3/lib/libqt-mt.so.3 (_ZN12QApplication14internalNotifyEP7QObjectP6QEvent+0x9b)[0x62b453b] /usr/lib/qt-3.3/lib/libqt-mt.so.3 (_ZN12QApplication6notifyEP7QObjectP6QEvent+0x269)[0x62b5d09] /usr/lib/qt-3.3/lib/libqt-mt.so.3 (_ZN9QETWidget19translateMouseEventEPK7_XEvent+0xf40)[0x624c360] /usr/lib/qt-3.3/lib/libqt-mt.so.3 (_ZN12QApplication15x11ProcessEventEP7_XEvent+0x8e6)[0x624a766] /usr/lib/qt-3.3/lib/libqt-mt.so.3(_ZN10QEventLoop13processEventsEj+0x4eb) [0x625c38b] /usr/lib/qt-3.3/lib/libqt-mt.so.3(_ZN10QEventLoop9enterLoopEv+0x50)[0x62cde30] /usr/lib/qt-3.3/lib/libqt-mt.so.3(_ZN10QEventLoop4execEv+0x26)[0x62cdce6] /usr/lib/qt-3.3/lib/libqt-mt.so.3(_ZN12QApplication4execEv+0x1f)[0x62b417f] odbctest[0x8099e15] /lib/libc.so.6(__libc_start_main+0xe0)[0xba4f70] odbctest(_ZN9QTextEdit13setWrapPolicyENS_10WrapPolicyE+0x45)[0x8053871] ======= Memory map: ======== 00110000-00111000 r-xp 00110000 00:00 0 [vdso] 00111000-0011b000 r-xp 00000000 08:11 65061 /lib/libnss_files-2.6.so 0011b000-0011c000 r-xp 00009000 08:11 65061 /lib/libnss_files-2.6.so 0011c000-0011d000 rwxp 0000a000 08:11 65061 /lib/libnss_files-2.6.so 0011d000-00121000 r-xp 00000000 08:11 1984128 /usr/lib/qt-3.3/plugins/inputmethods/libqimsw-none.so 00121000-00122000 rwxp 00003000 08:11 1984128 /usr/lib/qt-3.3/plugins/inputmethods/libqimsw-none.so 00124000-0014b000 r-xp 00000000 08:11 1720257 /usr/lib/libfontconfig.so.1.2.0 0014b000-00153000 rwxp 00027000 08:11 1720257 /usr/lib/libfontconfig.so.1.2.0 00155000-0017a000 r-xp 00000000 08:11 1720176 /usr/lib/libpng12.so.0.16.0 0017a000-0017b000 rwxp 00024000 08:11 1720176 /usr/lib/libpng12.so.0.16.0 0017d000-0017f000 r-xp 00000000 08:11 1722025 /usr/lib/libXinerama.so.1.0.0 0017f000-00180000 rwxp 00001000 08:11 1722025 /usr/lib/libXinerama.so.1.0.0 00182000-00186000 r-xp 00000000 08:11 1722028 /usr/lib/libXfixes.so.3.1.0 00186000-00187000 rwxp 00003000 08:11 1722028 /usr/lib/libXfixes.so.3.1.0 00189000-00191000 r-xp 00000000 08:11 1722026 /usr/lib/libXi.so.6.0.0 00191000-00192000 rwxp 00007000 08:11 1722026 /usr/lib/libXi.so.6.0.0 00194000-0019d000 r-xp 00000000 08:11 1722029 /usr/lib/libXcursor.so.1.0.2 0019d000-0019e000 rwxp 00008000 08:11 1722029 /usr/lib/libXcursor.so.1.0.2 001a0000-001a6000 r-xp 00000000 08:11 1722027 /usr/lib/libXrandr.so.2.1.0 001a6000-001a7000 rwxp 00005000 08:11 1722027 /usr/lib/libXrandr.so.2.1.0 001a9000-001b1000 r-xp 00000000 08:11 1722034 /usr/lib/libSM.so.6.0.0 001b1000-001b2000 rwxp 00007000 08:11 1722034 /usr/lib/libSM.so.6.0.0 001b2000-001bb000 r-xp 00000000 08:11 1984127 /usr/lib/qt-3.3/plugins/inputmethods/libqimsw-multi.so 001bb000-001bc000 rwxp 00008000 08:11 1984127 /usr/lib/qt-3.3/plugins/inputmethods/libqimsw-multi.so 001be000-001d9000 r-xp 00000000 08:11 64842 /lib/ld-2.6.so 001d9000-001da000 r-xp 0001a000 08:11 64842 /lib/ld-2.6.so 001da000-001db000 rwxp 0001b000 08:11 64842 /lib/ld-2.6.so 001dd000-001f1000 r-xp 00000000 08:11 1724001 /usr/lib/libodbcinst.so.1.0.0 001f1000-001f2000 rwxp 00013000 08:11 1724001 /usr/lib/libodbcinst.so.1.0.0 001f4000-00263000 r-xp 00000000 08:11 1729761 /usr/lib/libodbc.so.1.0.0 00263000-00268000 rwxp 0006e000 08:11 1729761 /usr/lib/libodbc.so.1.0.0 00268000-00287000 r-xp 00000000 08:11 64864 /lib/libexpat.so.0.5.0 00287000-00289000 rwxp 0001e000 08:11 64864 /lib/libexpat.so.0.5.0 00289000-002a8000 r-xp 00000000 08:11 2334214 /usr/lib/kde3/plugins/styles/plastik.so 002a8000-002a9000 rwxp 0001f000 08:11 2334214 /usr/lib/kde3/plugins/styles/plastik.so 002a9000-002d3000 r-xp 00000000 08:11 1722109 /usr/lib/libkdefx.so.4.2.0 002d3000-002d4000 rwxp 0002a000 08:11 1722109 /usr/lib/libkdefx.so.4.2.0 002d4000-002f8000 r-xp 00000000 08:11 1984129 /usr/lib/qt-3.3/plugins/inputmethods/libqsimple.so 002f8000-002f9000 rwxp 00023000 08:11 1984129 /usr/lib/qt-3.3/plugins/inputmethods/libqsimple.so 002f9000-00303000 r-xp 00000000 08:11 1984132 /usr/lib/qt-3.3/plugins/inputmethods/libqxim.so 00303000-00304000 rwxp 0000a000 08:11 1984132 /usr/lib/qt-3.3/plugins/inputmethods/libqxim.so 00304000-00305000 r-xp 00000000 08:11 1783842 /usr/lib/gconv/ISO8859-1.so 00305000-00307000 rwxp 00000000 08:11 1783842 /usr/lib/gconv/ISO8859-1.so 00307000-0031c000 r-xp 00000000 08:11 64884 /lib/libnsl-2.6.so 0031c000-0031d000 r-xp 00014000 08:11 64884 /lib/libnsl-2.6.so 0031d000-0031e000 rwxp 00015000 08:11 64884 /lib/libnsl-2.6.so 0031e000-00320000 rwxp 0031e000 00:00 0 0033d000-0036e000 r-xp 00000000 08:11 1722048 /usr/lib/liblcms.so.1.0.16 0036e000-0036f000 rwxp 00031000 08:11 1722048 /usr/lib/liblcms.so.1.0.16 0036f000-00372000 rwxp 0036f000 00:00 0 00379000-0038b000 r-xp 00000000 08:11 1722050 /usr/lib/libXft.so.2.1.2 0038b000-0038c000 rwxp 00012000 08:11 1722050 /usr/lib/libXft.so.2.1.2 003be000-00426000 r-xp 00000000 08:11 1722049 /usr/lib/libmng.so.1.0.0 00426000-00429000 rwxp 00067000 08:11 1722049 /usr/lib/libmng.so.1.0.0 00429000-0046a000 r-xp 00000000 08:11 1738344 /usr/lib/libodbcpsql.so.2.0.0 0046a000-0046c000 rwxp 00040000 08:11 1738344 /usr/lib/libodbcpsql.so.2.0.0 0046c000-0049e000 rwxp 0046c000 00:00 0 00b8f000-00cdd000 r-xp 00000000 08:11 64844 /lib/libc-2.6.so 00cdd000-00cdf000 r-xp 0014e000 08:11 64844 /lib/libc-2.6.so 00cdf000-00ce0000 rwxp 00150000 08:11 64844 /lib/libc-2.6.so 00ce0000-00ce3000 rwxp 00ce0000 00:00 0 00ce5000-00d0c000 r-xp 00000000 08:11 64862 /lib/libm-2.6.so 00d0c000-00d0d000 r-xp 00026000 08:11 64862 /lib/libm-2.6.so 00d0d000-00d0e000 rwxp 00027000 08:11 64862 /lib/libm-2.6.so 00d10000-00d13000 r-xp 00000000 08:11 64849 /lib/libdl-2.6.so 00d13000-00d14000 r-xp 00002000 08:11 64849 /lib/libdl-2.6.so 00d14000-00d15000 rwxp 00003000 08:11 64849 /lib/libdl-2.6.so 00d17000-00d29000 r-xp 00000000 08:11Аварийный останов Expected results: message SQLGetData(): In: Statement Handle: 0x8608be8 Column Number: 1 Target Type: SQL_C_DOUBLE=8 (1.0) Target Value Ptr: 0x8607658 Buffer Length: 300 Strlen_or_Ind Ptr: 0xbfce97e0 Return: SQL_SUCCESS=0 Out: *Strlen_or_Ind Ptr: 8 *Target Value Ptr: 1.500000 in odbctest window after step 8 Additional info: short investigation revealed char saved_locale[256]; at the beginning of copy_and_convert_fields of both unixODBC-2.2.12/Drivers/PostgreSQL/convert.c and unixODBC-2.2.12/Drivers/Postgre7.1/convert.c after increasing buffer size to 4096 it works for me. maybe alloca() would be better. however, I cannot rebuild source rpm.
Created attachment 162042 [details] patch that works for me
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This bug appears to have been reported against 'rawhide' during the Fedora 10 development cycle. Changing version to '10'. More information and reason for this action is here: http://fedoraproject.org/wiki/BugZappers/HouseKeeping
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