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From:   bugzilla-daemon@bugzilla.kernel.org
To:     linux-bluetooth@vger.kernel.org
Subject: [Bug 202213] New: bluez trunk tests fail with GCC 9 (or with
 -fsanitize=address with GCC 9)
Date:   Thu, 10 Jan 2019 13:45:59 +0000
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https://bugzilla.kernel.org/show_bug.cgi?id=202213

            Bug ID: 202213
           Summary: bluez trunk tests fail with GCC 9 (or with
                    -fsanitize=address with GCC 9)
           Product: Drivers
           Version: 2.5
    Kernel Version: master
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Bluetooth
          Assignee: linux-bluetooth@vger.kernel.org
          Reporter: mliska@suse.cz
        Regression: No

As of GCC r259641 there are new sanitizer errors:

$ export CFLAGS='-fsanitize=address -g'
$ make && make test
...

./unit/test-sdp
bluetoothd[24441]: Bluetooth daemon 5.50

/TP/SERVER/SS/BV-01-C/UUID-16 - init
/TP/SERVER/SS/BV-01-C/UUID-16 - setup
/TP/SERVER/SS/BV-01-C/UUID-16 - setup complete
/TP/SERVER/SS/BV-01-C/UUID-16 - run
=================================================================
==24441==ERROR: AddressSanitizer: stack-use-after-scope on address
0x7fffffff1a20 at pc 0x7ffff73fbbd8 bp 0x7fffffff1250 sp 0x7fffffff0a00
READ of size 13 at 0x7fffffff1a20 thread T0
    #0 0x7ffff73fbbd7 in __interceptor_memcpy
/home/marxin/Programming/gcc/libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc:790
    #1 0x404431 in send_pdu unit/test-sdp.c:204
    #2 0x7ffff7ed8626  (/usr/lib64/libglib-2.0.so.0+0x4d626)
    #3 0x7ffff7edbc14 in g_main_context_dispatch
(/usr/lib64/libglib-2.0.so.0+0x50c14)
    #4 0x7ffff7edbfd7  (/usr/lib64/libglib-2.0.so.0+0x50fd7)
    #5 0x7ffff7edc2d1 in g_main_loop_run (/usr/lib64/libglib-2.0.so.0+0x512d1)
    #6 0x4a2783 in mainloop_run src/shared/mainloop-glib.c:79
    #7 0x4a31ee in mainloop_run_with_signal src/shared/mainloop-notify.c:201
    #8 0x4a180a in tester_run src/shared/tester.c:870
    #9 0x461163 in main unit/test-sdp.c:2834
    #10 0x7ffff7018fea in __libc_start_main ../csu/libc-start.c:308
    #11 0x4039a9 in _start
(/home/marxin/Programming/bluez/unit/test-sdp+0x4039a9)

Address 0x7fffffff1a20 is located in stack of thread T0 at offset 1392 in frame
    #0 0x40876c in main unit/test-sdp.c:779

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    [27360, 27456) 'pdus' (line 790)
    [27488, 27584) 'pdus' (line 795)
    [27616, 27712) 'pdus' (line 800)
    [27744, 27840) 'pdus' (line 861)
    [27872, 27968) 'pdus' (line 866)
    [28000, 28096) 'pdus' (line 873)
    [28128, 28224) 'pdus' (line 885)
    [28256, 28352) 'pdus' (line 889)
    [28384, 28480) 'pdus' (line 893)
    [28512, 28608) 'pdus' (line 906)
    [28640, 28736) 'pdus' (line 910)
    [28768, 28864) 'pdus' (line 914)
    [28896, 28992) 'pdus' (line 1359)
    [29024, 29120) 'pdus' (line 1407)
    [29152, 29248) 'pdus' (line 1413)
    [29280, 29376) 'pdus' (line 1419)
    [29408, 29504) 'pdus' (line 1434)
    [29536, 29632) 'pdus' (line 1440)
    [29664, 29760) 'pdus' (line 1446)
    [29792, 29888) 'pdus' (line 1461)
    [29920, 30016) 'pdus' (line 1467)
    [30048, 30144) 'pdus' (line 1473)
    [30176, 30272) 'pdus' (line 1488)
    [30304, 30400) 'pdus' (line 1495)
    [30432, 30528) 'pdus' (line 1502)
    [30560, 30656) 'pdus' (line 1580)
    [30688, 30784) 'pdus' (line 1587)
    [30816, 30912) 'pdus' (line 1594)
    [30944, 31040) 'pdus' (line 1610)
    [31072, 31168) 'pdus' (line 1617)
    [31200, 31296) 'pdus' (line 1624)
    [31328, 31424) 'pdus' (line 1640)
    [31456, 31552) 'pdus' (line 1647)
    [31584, 31680) 'pdus' (line 1654)
    [31712, 31808) 'pdus' (line 1670)
    [31840, 31936) 'pdus' (line 1677)
    [31968, 32064) 'pdus' (line 1684)
    [32096, 32192) 'pdus' (line 1700)
    [32224, 32320) 'pdus' (line 1709)
    [32352, 32448) 'pdus' (line 1718)
    [32480, 32576) 'pdus' (line 1736)
    [32608, 32704) 'pdus' (line 1743)
    [32736, 32832) 'pdus' (line 1750)
    [32864, 32960) 'pdus' (line 1766)
    [32992, 33088) 'pdus' (line 1774)
    [33120, 33216) 'pdus' (line 1782)
    [33248, 33344) 'pdus' (line 1799)
    [33376, 33472) 'pdus' (line 1806)
    [33504, 33600) 'pdus' (line 1813)
    [33632, 33728) 'pdus' (line 1829)
    [33760, 33856) 'pdus' (line 1838)
    [33888, 33984) 'pdus' (line 1847)
    [34016, 34112) 'pdus' (line 2027)
    [34144, 34240) 'pdus' (line 2034)
    [34272, 34368) 'pdus' (line 2041)
    [34400, 34496) 'pdus' (line 2057)
    [34528, 34624) 'pdus' (line 2065)
    [34656, 34752) 'pdus' (line 2073)
    [34784, 34880) 'pdus' (line 2090)
    [34912, 35008) 'pdus' (line 2099)
    [35040, 35136) 'pdus' (line 2108)
    [35168, 35264) 'pdus' (line 2126)
    [35296, 35392) 'pdus' (line 2135)
    [35424, 35520) 'pdus' (line 2144)
    [35552, 35648) 'pdus' (line 2162)
    [35680, 35776) 'pdus' (line 2170)
    [35808, 35904) 'pdus' (line 2178)
    [35936, 36032) 'pdus' (line 2195)
    [36064, 36160) 'pdus' (line 2199)
    [36192, 36288) 'pdus' (line 2204)
    [36320, 36416) 'pdus' (line 2218)
    [36448, 36544) 'pdus' (line 2223)
    [36576, 36672) 'pdus' (line 2228)
    [36704, 36864) 'pdus' (line 814)
    [36928, 37088) 'pdus' (line 826)
    [37152, 37312) 'pdus' (line 838)
    [37376, 37536) 'pdus' (line 926)
    [37600, 37760) 'pdus' (line 975)
    [37824, 37984) 'pdus' (line 994)
    [38048, 38208) 'pdus' (line 1015)
    [38272, 38432) 'pdus' (line 1035)
    [38496, 38656) 'pdus' (line 1055)
    [38720, 38880) 'pdus' (line 1075)
    [38944, 39104) 'pdus' (line 1095)
    [39168, 39328) 'pdus' (line 1114)
    [39392, 39552) 'pdus' (line 1215)
    [39616, 39776) 'pdus' (line 1235)
    [39840, 40000) 'pdus' (line 1255)
    [40064, 40224) 'pdus' (line 1275)
    [40288, 40448) 'pdus' (line 1297)
    [40512, 40672) 'pdus' (line 1319)
    [40736, 40896) 'pdus' (line 1338)
    [40960, 41120) 'pdus' (line 1371)
    [41184, 41344) 'pdus' (line 1388)
    [41408, 41568) 'pdus' (line 1865)
    [41632, 41792) 'pdus' (line 1880)
    [41856, 42016) 'pdus' (line 1895)
    [42080, 42240) 'pdus' (line 1920)
    [42304, 42464) 'pdus' (line 1935)
    [42528, 42688) 'pdus' (line 1950)
    [42752, 42912) 'pdus' (line 1975)
    [42976, 43136) 'pdus' (line 1989)
    [43200, 43360) 'pdus' (line 2003)
    [43424, 43648) 'pdus' (line 1136)
    [43712, 43936) 'pdus' (line 1163)
    [44000, 44224) 'pdus' (line 1189)
    [44288, 44512) 'pdus' (line 1518)
    [44576, 44800) 'pdus' (line 1534)
    [44864, 45088) 'pdus' (line 1550)
    [45152, 45376) 'pdus' (line 2620)
    [45440, 45664) 'pdus' (line 2657)
    [45728, 45952) 'pdus' (line 2694)
    [46016, 46240) 'pdus' (line 2817)
    [46304, 46592) 'pdus' (line 946)
    [46656, 47968) 'pdus' (line 2241)
    [48096, 49408) 'pdus' (line 2363)
    [49536, 50848) 'pdus' (line 2485)
HINT: this may be a false positive if your program uses some custom stack
unwind mechanism, swapcontext or vfork
      (longjmp and C++ exceptions *are* supported)
SUMMARY: AddressSanitizer: stack-use-after-scope
/home/marxin/Programming/gcc/libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc:790
in __interceptor_memcpy
Shadow bytes around the buggy address:
  0x10007fff62f0: f8 f2 f2 f2 f8 f2 f2 f2 f8 f2 00 00 00 f2 00 00
  0x10007fff6300: f8 f8 00 00 f8 f8 00 00 f8 f8 00 00 f8 f8 00 00
  0x10007fff6310: f8 f8 00 00 f8 f8 00 00 f8 f8 00 00 f8 f8 00 00
  0x10007fff6320: f8 f8 00 00 f8 f8 00 00 f8 f8 00 00 f8 f8 00 00
  0x10007fff6330: f8 f8 00 00 f8 f8 00 00 f8 f8 00 00 f8 f8 00 00
=>0x10007fff6340: f8 f8 00 00[f8]f8 00 00 f8 f8 00 00 f8 f8 00 00
  0x10007fff6350: f8 f8 00 00 f8 f8 00 00 f8 f8 00 00 f8 f8 00 00
  0x10007fff6360: f8 f8 00 00 f8 f8 00 00 f8 f8 00 00 f8 f8 00 00
  0x10007fff6370: f8 f8 00 00 f8 f8 00 00 f8 f8 00 00 f8 f8 00 00
  0x10007fff6380: f8 f8 00 00 f8 f8 00 00 f8 f8 00 00 f8 f8 00 00
  0x10007fff6390: f8 f8 00 00 f8 f8 00 00 f8 f8 00 00 f8 f8 00 00
Shadow byte legend (one shadow byte represents 8 application bytes):
  Addressable:           00
  Partially addressable: 01 02 03 04 05 06 07 
  Heap left redzone:       fa
  Freed heap region:       fd
  Stack left redzone:      f1
  Stack mid redzone:       f2
  Stack right redzone:     f3
  Stack after return:      f5
  Stack use after scope:   f8
  Global redzone:          f9
  Global init order:       f6
  Poisoned by user:        f7
  Container overflow:      fc
  Array cookie:            ac
  Intra object redzone:    bb
  ASan internal:           fe
  Left alloca redzone:     ca
  Right alloca redzone:    cb
  Shadow gap:              cc
==24441==ABORTING

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