Bug 22212 - memory leak in nm in binutils 2.30(HEAD)
Summary: memory leak in nm in binutils 2.30(HEAD)
Status: RESOLVED FIXED
Alias: None
Product: binutils
Classification: Unclassified
Component: binutils (show other bugs)
Version: 2.30
: P2 normal
Target Milestone: 2.30
Assignee: Alan Modra
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2017-09-26 12:41 UTC by skysider
Modified: 2017-10-09 04:51 UTC (History)
0 users

See Also:
Host:
Target:
Build:
Last reconfirmed: 2017-10-09 00:00:00


Attachments
poc of memory leak (9.82 KB, application/octet-stream)
2017-09-26 12:41 UTC, skysider
Details

Note You need to log in before you can comment on or make changes to this bug.
Description skysider 2017-09-26 12:41:22 UTC
Created attachment 10486 [details]
poc of memory leak

The command I execute is "nm-new -A -a -l -S -s --special-syms --synthetic --with-symbol-versions -D leak3.elf", the output is as follows:

=================================================================
==35671==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 24 byte(s) in 1 object(s) allocated from:
    #0 0x7f422f137602 in malloc (/usr/lib/x86_64-linux-gnu/libasan.so.2+0x98602)
    #1 0x6b48a5 in objalloc_create objalloc.c:91
    #2 0x42525d in bfd_hash_table_init_n /work/binutils-gdb-asan/bfd/hash.c:385
    #3 0x4255c9 in bfd_hash_table_init /work/binutils-gdb-asan/bfd/hash.c:417
    #4 0x53d56f in create_info_hash_table dwarf2.c:463
    #5 0x54e1aa in stash_maybe_enable_info_hash_tables dwarf2.c:4204
    #6 0x550182 in _bfd_dwarf2_find_nearest_line dwarf2.c:4613
    #7 0x4c13d9 in _bfd_elf_find_line /work/binutils-gdb-asan/bfd/elf.c:8695
    #8 0x406aa9 in print_symbol /work/binutils-gdb-asan/binutils/nm.c:1003
    #9 0x4070a2 in print_symbols /work/binutils-gdb-asan/binutils/nm.c:1084
    #10 0x407a61 in display_rel_file /work/binutils-gdb-asan/binutils/nm.c:1200
    #11 0x408276 in display_file /work/binutils-gdb-asan/binutils/nm.c:1320
    #12 0x409e3e in main /work/binutils-gdb-asan/binutils/nm.c:1794
    #13 0x7f422eaf182f in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2082f)

Direct leak of 24 byte(s) in 1 object(s) allocated from:
    #0 0x7f422f137602 in malloc (/usr/lib/x86_64-linux-gnu/libasan.so.2+0x98602)
    #1 0x6b48a5 in objalloc_create objalloc.c:91
    #2 0x42525d in bfd_hash_table_init_n /work/binutils-gdb-asan/bfd/hash.c:385
    #3 0x4255c9 in bfd_hash_table_init /work/binutils-gdb-asan/bfd/hash.c:417
    #4 0x53d56f in create_info_hash_table dwarf2.c:463
    #5 0x54e169 in stash_maybe_enable_info_hash_tables dwarf2.c:4203
    #6 0x550182 in _bfd_dwarf2_find_nearest_line dwarf2.c:4613
    #7 0x4c13d9 in _bfd_elf_find_line /work/binutils-gdb-asan/bfd/elf.c:8695
    #8 0x406aa9 in print_symbol /work/binutils-gdb-asan/binutils/nm.c:1003
    #9 0x4070a2 in print_symbols /work/binutils-gdb-asan/binutils/nm.c:1084
    #10 0x407a61 in display_rel_file /work/binutils-gdb-asan/binutils/nm.c:1200
    #11 0x408276 in display_file /work/binutils-gdb-asan/binutils/nm.c:1320
    #12 0x409e3e in main /work/binutils-gdb-asan/binutils/nm.c:1794
    #13 0x7f422eaf182f in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2082f)

Indirect leak of 32424 byte(s) in 1 object(s) allocated from:
    #0 0x7f422f137602 in malloc (/usr/lib/x86_64-linux-gnu/libasan.so.2+0x98602)
    #1 0x6b4b2a in _objalloc_alloc objalloc.c:143
    #2 0x4253ca in bfd_hash_table_init_n /work/binutils-gdb-asan/bfd/hash.c:392
    #3 0x4255c9 in bfd_hash_table_init /work/binutils-gdb-asan/bfd/hash.c:417
    #4 0x53d56f in create_info_hash_table dwarf2.c:463
    #5 0x54e1aa in stash_maybe_enable_info_hash_tables dwarf2.c:4204
    #6 0x550182 in _bfd_dwarf2_find_nearest_line dwarf2.c:4613
    #13 0x7f422eaf182f in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2082f)

Indirect leak of 32424 byte(s) in 1 object(s) allocated from:
    #0 0x7f422f137602 in malloc (/usr/lib/x86_64-linux-gnu/libasan.so.2+0x98602)
    #1 0x6b4b2a in _objalloc_alloc objalloc.c:143
    #2 0x4253ca in bfd_hash_table_init_n /work/binutils-gdb-asan/bfd/hash.c:392
    #3 0x4255c9 in bfd_hash_table_init /work/binutils-gdb-asan/bfd/hash.c:417
    #4 0x53d56f in create_info_hash_table dwarf2.c:463
    #5 0x54e169 in stash_maybe_enable_info_hash_tables dwarf2.c:4203
    #6 0x550182 in _bfd_dwarf2_find_nearest_line dwarf2.c:4613
    #7 0x4c13d9 in _bfd_elf_find_line /work/binutils-gdb-asan/bfd/elf.c:8695
    #8 0x406aa9 in print_symbol /work/binutils-gdb-asan/binutils/nm.c:1003
    #9 0x4070a2 in print_symbols /work/binutils-gdb-asan/binutils/nm.c:1084
    #10 0x407a61 in display_rel_file /work/binutils-gdb-asan/binutils/nm.c:1200
    #11 0x408276 in display_file /work/binutils-gdb-asan/binutils/nm.c:1320
    #12 0x409e3e in main /work/binutils-gdb-asan/binutils/nm.c:1794
    #13 0x7f422eaf182f in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2082f)

Indirect leak of 4064 byte(s) in 1 object(s) allocated from:
    #0 0x7f422f137602 in malloc (/usr/lib/x86_64-linux-gnu/libasan.so.2+0x98602)
    #1 0x6b48c4 in objalloc_create objalloc.c:95
    #2 0x42525d in bfd_hash_table_init_n /work/binutils-gdb-asan/bfd/hash.c:385
    #3 0x4255c9 in bfd_hash_table_init /work/binutils-gdb-asan/bfd/hash.c:417
    #4 0x53d56f in create_info_hash_table dwarf2.c:463
    #5 0x54e169 in stash_maybe_enable_info_hash_tables dwarf2.c:4203
    #6 0x550182 in _bfd_dwarf2_find_nearest_line dwarf2.c:4613
    #7 0x4c13d9 in _bfd_elf_find_line /work/binutils-gdb-asan/bfd/elf.c:8695
    #8 0x406aa9 in print_symbol /work/binutils-gdb-asan/binutils/nm.c:1003
    #9 0x4070a2 in print_symbols /work/binutils-gdb-asan/binutils/nm.c:1084
    #10 0x407a61 in display_rel_file /work/binutils-gdb-asan/binutils/nm.c:1200
    #11 0x408276 in display_file /work/binutils-gdb-asan/binutils/nm.c:1320
    #12 0x409e3e in main /work/binutils-gdb-asan/binutils/nm.c:1794
    #13 0x7f422eaf182f in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2082f)

Indirect leak of 4064 byte(s) in 1 object(s) allocated from:
    #0 0x7f422f137602 in malloc (/usr/lib/x86_64-linux-gnu/libasan.so.2+0x98602)
    #1 0x6b48c4 in objalloc_create objalloc.c:95
    #2 0x42525d in bfd_hash_table_init_n /work/binutils-gdb-asan/bfd/hash.c:385
    #3 0x4255c9 in bfd_hash_table_init /work/binutils-gdb-asan/bfd/hash.c:417
    #4 0x53d56f in create_info_hash_table dwarf2.c:463
    #5 0x54e1aa in stash_maybe_enable_info_hash_tables dwarf2.c:4204
    #6 0x550182 in _bfd_dwarf2_find_nearest_line dwarf2.c:4613
    #7 0x4c13d9 in _bfd_elf_find_line /work/binutils-gdb-asan/bfd/elf.c:8695
    #8 0x406aa9 in print_symbol /work/binutils-gdb-asan/binutils/nm.c:1003
    #9 0x4070a2 in print_symbols /work/binutils-gdb-asan/binutils/nm.c:1084
    #10 0x407a61 in display_rel_file /work/binutils-gdb-asan/binutils/nm.c:1200
    #11 0x408276 in display_file /work/binutils-gdb-asan/binutils/nm.c:1320
    #12 0x409e3e in main /work/binutils-gdb-asan/binutils/nm.c:1794
    #13 0x7f422eaf182f in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2082f)

SUMMARY: AddressSanitizer: 73024 byte(s) leaked in 6 allocation(s).

The poc is attached here.
Comment 1 cvs-commit@gcc.gnu.org 2017-10-09 04:50:59 UTC
The master branch has been updated by Alan Modra <amodra@sourceware.org>:

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=b55ec8b676ed05d93ee49d6c79ae0403616c4fb0

commit b55ec8b676ed05d93ee49d6c79ae0403616c4fb0
Author: Alan Modra <amodra@gmail.com>
Date:   Mon Oct 9 13:21:44 2017 +1030

    PR22212, memory leak in nm
    
    	PR 22212
    	* dwarf2.c (_bfd_dwarf2_cleanup_debug_info): Free
    	funcinfo_hash_table and varinfo_hash_table.
Comment 2 Alan Modra 2017-10-09 04:51:24 UTC
Fixed