[Bug binutils/30886] New: nm: SEGV on unknow address at nm.c:718 in print_symname

[yan.cs10 at nycu dot edu.tw]

https://sourceware.org/bugzilla/show_bug.cgi?id=30886

            Bug ID: 30886
           Summary: nm: SEGV on unknow address at nm.c:718 in
                    print_symname
           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 15125
  --> https://sourceware.org/bugzilla/attachment.cgi?id=15125&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 DEADLYSIGNAL

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_14

AddressSanitizer report:

$ /home/pt/sytseng/binutils-gdb-asan/binutils/nm-new -D ./poc_14

BFD: warning: ./pocs/poc_14 has a program header with invalid alignment
AddressSanitizer:DEADLYSIGNAL
=================================================================
==686862==ERROR: AddressSanitizer: SEGV on unknown address 0x621004000f30 (pc
0x55a5e809f56e bp 0x7ffff12488b0 sp 0x7ffff12487e0 T0)
==686862==The signal is caused by a READ memory access.
    #0 0x55a5e809f56d in print_symname
/home/pt/sytseng/binutils-gdb-asan/binutils/nm.c:718
    #1 0x55a5e80a532b in print_symbol_info_bsd
/home/pt/sytseng/binutils-gdb-asan/binutils/nm.c:1873
    #2 0x55a5e80a22c1 in print_symbol
/home/pt/sytseng/binutils-gdb-asan/binutils/nm.c:1228
    #3 0x55a5e80a34e7 in print_symbols
/home/pt/sytseng/binutils-gdb-asan/binutils/nm.c:1388
    #4 0x55a5e80a402e in display_rel_file
/home/pt/sytseng/binutils-gdb-asan/binutils/nm.c:1503
    #5 0x55a5e80a4838 in display_file
/home/pt/sytseng/binutils-gdb-asan/binutils/nm.c:1649
    #6 0x55a5e80a6827 in main
/home/pt/sytseng/binutils-gdb-asan/binutils/nm.c:2161
    #7 0x7f4230f78082 in __libc_start_main ../csu/libc-start.c:308
    #8 0x55a5e809d15d 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/binutils/nm.c:718 in print_symname
==686862==ABORTING

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