[Bug binutils/29230] New: nm-new segv in lookup_symbol_in_variable_table:dwarf2.c:3303

[shaohua.li at inf dot ethz.ch]

https://sourceware.org/bugzilla/show_bug.cgi?id=29230

            Bug ID: 29230
           Summary: nm-new segv in
                    lookup_symbol_in_variable_table:dwarf2.c:3303
           Product: binutils
           Version: 2.39 (HEAD)
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: binutils
          Assignee: unassigned at sourceware dot org
          Reporter: shaohua.li at inf dot ethz.ch
  Target Milestone: ---

Created attachment 14135
  --> https://sourceware.org/bugzilla/attachment.cgi?id=14135&action=edit
poc

On the given poc file, `nm-new -l` crashes.

AddressSanitizer report:
AddressSanitizer:DEADLYSIGNAL
=================================================================
==3976414==ERROR: AddressSanitizer: SEGV on unknown address 0x00001601006a (pc
0x000000430fc5 bp 0x7ffd20f95920 sp 0x7ffd20f950c0 T0)
==3976414==The signal is caused by a READ memory access.
    #0 0x430fc5 in strcmp
(/objdump/repo/binutils-asan/binutils/nm-new+0x430fc5)
    #1 0x9e854e in lookup_symbol_in_variable_table
//objdump/repo/binutils-asan/bfd/./dwarf2.c:3303:5
    #2 0x9aeee6 in comp_unit_find_line
//objdump/repo/binutils-asan/bfd/./dwarf2.c:4636:10
    #3 0x9aa86b in _bfd_dwarf2_find_nearest_line
//objdump/repo/binutils-asan/bfd/./dwarf2.c:5729:11
    #4 0x77d87f in _bfd_elf_find_line
//objdump/repo/binutils-asan/bfd/elf.c:9349:10
    #5 0x4e2723 in print_symbol
//objdump/repo/binutils-asan/binutils/nm.c:1322:9
    #6 0x4db407 in print_symbols
//objdump/repo/binutils-asan/binutils/nm.c:1403:7
    #7 0x4d7434 in display_rel_file
//objdump/repo/binutils-asan/binutils/nm.c:1530:5
    #8 0x4cd20d in display_file
//objdump/repo/binutils-asan/binutils/nm.c:1683:7
    #9 0x4cc1f0 in main //objdump/repo/binutils-asan/binutils/nm.c:2203:12
    #10 0x7f6de33cb082 in __libc_start_main
(/lib/x86_64-linux-gnu/libc.so.6+0x24082)
    #11 0x41c52d in _start
(/objdump/repo/binutils-asan/binutils/nm-new+0x41c52d)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV
(/objdump/repo/binutils-asan/binutils/nm-new+0x430fc5) in strcmp
==3976414==ABORTING

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