[Bug binutils/22163] New: null pointer dereference in elf_x86_64_get_synthetic_symtab, elf64-x86-64.c:6945 in binutils 2.29.1

[luanjunchao at 163 dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=22163

            Bug ID: 22163
           Summary: null pointer dereference in
                    elf_x86_64_get_synthetic_symtab, elf64-x86-64.c:6945
                    in binutils 2.29.1
           Product: binutils
           Version: 2.29
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: binutils
          Assignee: unassigned at sourceware dot org
          Reporter: luanjunchao at 163 dot com
  Target Milestone: ---

Created attachment 10435
  --> https://sourceware.org/bugzilla/attachment.cgi?id=10435&action=edit
crash of elf

When I run objdump with a specific elf, it crashes.
The command I run is objdump -S crash.pdf, and the result is as follows:

ASAN:SIGSEGV
=================================================================
==82641==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000008 (pc
0x000000510f8a bp 0x7ffebb774a00 sp 0x7ffebb774720 T0)
    #0 0x510f89 in elf_x86_64_get_synthetic_symtab
/work/binutils-2.29.1-asan/binutils-2.29.1/bfd/elf64-x86-64.c:6945
    #1 0x4140d2 in dump_bfd objdump.c:3525
    #2 0x4144a5 in display_object_bfd objdump.c:3603
    #3 0x4148a1 in display_any_bfd objdump.c:3692
    #4 0x414916 in display_file objdump.c:3713
    #5 0x415925 in main objdump.c:4015
    #6 0x7ff3314b782f in __libc_start_main
(/lib/x86_64-linux-gnu/libc.so.6+0x2082f)
    #7 0x403128 in _start
(/work/binutils-2.29.1-asan/binutils-2.29.1/binutils/objdump+0x403128)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV
/work/binutils-2.29.1-asan/binutils-2.29.1/bfd/elf64-x86-64.c:6945
elf_x86_64_get_synthetic_symtab
==82641==ABORTING

The crash elf is attached.

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