[Bug binutils/30888] New: nm: SEGV on unknow address at bfd/elf.c:9453 in _bfd_elf_slurp_version_tables

[yan.cs10 at nycu dot edu.tw]

https://sourceware.org/bugzilla/show_bug.cgi?id=30888

            Bug ID: 30888
           Summary: nm: SEGV on unknow address at bfd/elf.c:9453 in
                    _bfd_elf_slurp_version_tables
           Product: binutils
           Version: 2.42 (HEAD)
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: binutils
          Assignee: unassigned at sourceware dot org
          Reporter: yan.cs10 at nycu dot edu.tw
  Target Milestone: ---

Created attachment 15127
  --> https://sourceware.org/bugzilla/attachment.cgi?id=15127&action=edit
this poc with -D argument can crash nm-new in the latest version

Summary:

A crash caused when using nm
AddressSanitizer reported it as alloc-dealloc-mismatch (INVALID vs free)

git commit, OS, Compiler and processor

git commit: be8e83130
gcc (Ubuntu 9.4.0-1ubuntu1~20.04.2) 9.4.0
g++ (Ubuntu 9.4.0-1ubuntu1~20.04.2) 9.4.0
Ubuntu 20.04.4 LTS
AMD Ryzen 5 3600X 6-Core Processor

Steps to reproduce:

$ cd binutils-gdb
$ export CFLAGS='-fsanitize=address -fsanitize-recover=address -g3'
$ export CXXFLAGS='-fsanitize=address -fsanitize-recover=address -g3'
$ make
$ binutils/nm-new -D ./poc_26

AddressSanitizer report:

$ /home/pt/sytseng/binutils-gdb-asan/binutils/nm-new -D ./poc_26

BFD: warning: ./pocs/poc_26 has a program header with invalid alignment
AddressSanitizer:DEADLYSIGNAL
=================================================================
==702781==ERROR: AddressSanitizer: SEGV on unknown address 0x00000000002c (pc
0x564014e614cb bp 0x7ffe62815d40 sp 0x7ffe62815b50 T0)
==702781==The signal is caused by a READ memory access.
==702781==Hint: address points to the zero page.
    #0 0x564014e614ca in _bfd_elf_slurp_version_tables
/home/pt/sytseng/binutils-gdb-asan/bfd/elf.c:9543
    #1 0x564014e17cdd in bfd_elf64_slurp_symbol_table
/home/pt/sytseng/binutils-gdb-asan/bfd/elfcode.h:1278
    #2 0x564014e5f705 in _bfd_elf_canonicalize_dynamic_symtab
/home/pt/sytseng/binutils-gdb-asan/bfd/elf.c:9285
    #3 0x564014db0fcf in _bfd_generic_read_minisymbols
/home/pt/sytseng/binutils-gdb-asan/bfd/syms.c:834
    #4 0x564014d826da in display_rel_file
/home/pt/sytseng/binutils-gdb-asan/binutils/nm.c:1413
    #5 0x564014d83838 in display_file
/home/pt/sytseng/binutils-gdb-asan/binutils/nm.c:1649
    #6 0x564014d85827 in main
/home/pt/sytseng/binutils-gdb-asan/binutils/nm.c:2161
    #7 0x7f5a56d20082 in __libc_start_main ../csu/libc-start.c:308
    #8 0x564014d7c15d in _start
(/home/pt/sytseng/binutils-gdb-asan/binutils/nm-new+0xa315d)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV
/home/pt/sytseng/binutils-gdb-asan/bfd/elf.c:9543 in
_bfd_elf_slurp_version_tables
==702781==ABORTING

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