[Bug binutils/28272] New: [strip] SEGV in group_signature - v2.30

[tricker51449 at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=28272

            Bug ID: 28272
           Summary: [strip] SEGV in group_signature - v2.30
           Product: binutils
           Version: 2.30
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: binutils
          Assignee: unassigned at sourceware dot org
          Reporter: tricker51449 at gmail dot com
  Target Milestone: ---

Created attachment 13625
  --> https://sourceware.org/bugzilla/attachment.cgi?id=13625&action=edit
crash file

Hello,

I detect the exception in strip-v2.30 with clang-8.0 and the following
configuration:

$ CFLAGS="-fsanitize=address" CXXFLAGS="-fsanitize=address" ./configure
--disable-shared && make -j

Execute strip with the input in the attachment, then the crash occurs with the
stack message by address sanitizer:

strip -o <files> <input>


AddressSanitizer:DEADLYSIGNAL
=================================================================
==1324==ERROR: AddressSanitizer: SEGV on unknown address 0x606000081d30 (pc
0x00000050efae bp 0x7ffdf4c8cc40 sp 0x7ffdf4c8caf0 T0)
==1324==The signal is caused by a READ memory access.
\    #0 0x50efad in group_signature (/binutils-2.30-asan/bin/strip+0x50efad)
    #1 0x50e2f9 in is_strip_section (/binutils-2.30-asan/bin/strip+0x50e2f9)
    #2 0x504ce7 in setup_section (/binutils-2.30-asan/bin/strip+0x504ce7)
    #3 0x5d62ae in bfd_map_over_sections
(/binutils-2.30-asan/bin/strip+0x5d62ae)
    #4 0x500e58 in copy_object (/binutils-2.30-asan/bin/strip+0x500e58)
    #5 0x4fcbe1 in copy_file (/binutils-2.30-asan/bin/strip+0x4fcbe1)
    #6 0x4f759c in strip_main (/binutils-2.30-asan/bin/strip+0x4f759c)
    #7 0x4f6a3d in main (/binutils-2.30-asan/bin/strip+0x4f6a3d)
    #8 0x7f1743c02bf6 in __libc_start_main
/build/glibc-S9d2JN/glibc-2.27/csu/../csu/libc-start.c:310
    #9 0x41b659 in _start (/binutils-2.30-asan/bin/strip+0x41b659)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/binutils-2.30-asan/bin/strip+0x50efad) in
group_signature
==1324==ABORTING

Thanks & Best Regards

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