[Bug ld/29849] New: ERROR: AddressSanitizer: global-buffer-overflow on address in spec_match ../../ld/ldlang.c:223 since 049522cae9798e51dd0c58566a9a2c61ba9100a9

[mliska at suse dot cz]

https://sourceware.org/bugzilla/show_bug.cgi?id=29849

            Bug ID: 29849
           Summary: ERROR: AddressSanitizer: global-buffer-overflow on
                    address in spec_match ../../ld/ldlang.c:223 since
                    049522cae9798e51dd0c58566a9a2c61ba9100a9
           Product: binutils
           Version: 2.40 (HEAD)
            Status: NEW
          Severity: normal
          Priority: P2
         Component: ld
          Assignee: unassigned at sourceware dot org
          Reporter: mliska at suse dot cz
                CC: matz at suse dot de
  Target Milestone: ---
              Host: x86_64-linux-gnu
            Target: powerpc-eabisim

Since the revision I see for:

configure --build=x86_64-linux --disable-gdb --disable-gdbserver
--disable-werror --enable-obsolete --target=powerpc-eabisim CFLAGS="-g -O2
-fsanitize=address,undefined -Wno-error"CXXLAGS="-g -O2
-fsanitize=address,undefined -Wno-error"LDFLAGS="-ldl"

FAIL: TLS32 dynamic exec (--no-tls-optimize)
Executing on host: sh -c {/dev/shm/b835y_3p/ld/ld-new   -o tmpdir/tls32.so  -z
norelro
-L/buildworker/marxinbox-cross-binutils-sanitizers/build/ld/testsuite/ld-powerpc
-shared -melf32ppc --no-plt-align --no-ld-generated-unwind-info
--hash-style=sysv -z notext tmpdir/tls32.o   2>&1}  /dev/null ld.tmp (timeout =
300)
==5412==ERROR: AddressSanitizer: global-buffer-overflow on address
0x000000db660d at pc 0x7ffff78adc10 bp 0x7fffffffb890 sp 0x7fffffffb040
    #0 0x7ffff78adc0f  (/lib64/libasan.so.8+0xadc0f)
    #1 0x7ffff78ae348 in memcmp (/lib64/libasan.so.8+0xae348)
    #2 0x48369b in spec_match
/buildworker/marxinbox-cross-binutils-sanitizers/build/ld/ldlang.c:227
    #3 0x48369b in walk_wild_section_match
/buildworker/marxinbox-cross-binutils-sanitizers/build/ld/ldlang.c:440
    #4 0x48369b in resolve_wild_sections
/buildworker/marxinbox-cross-binutils-sanitizers/build/ld/ldlang.c:906
    #5 0x484940 in resolve_wild_sections
/buildworker/marxinbox-cross-binutils-sanitizers/build/ld/ldlang.c:890
    #6 0x484940 in resolve_wilds
/buildworker/marxinbox-cross-binutils-sanitizers/build/ld/ldlang.c:929
    #7 0x498cd2 in lang_process
/buildworker/marxinbox-cross-binutils-sanitizers/build/ld/ldlang.c:8059
    #8 0x426599 in main
/buildworker/marxinbox-cross-binutils-sanitizers/build/ld/ldmain.c:497
    #9 0x7ffff6e2c5af in __libc_start_call_main (/lib64/libc.so.6+0x275af)
    #10 0x7ffff6e2c678 in __libc_start_main_impl (/lib64/libc.so.6+0x27678)
    #11 0x4290d4 in _start ../sysdeps/x86_64/start.S:115

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