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[Bug binutils/25363] New: memory leak in nm, display_rel_file
From: |
featherrain26 at gmail dot com |
Subject: |
[Bug binutils/25363] New: memory leak in nm, display_rel_file |
Date: |
Fri, 10 Jan 2020 14:38:02 +0000 |
https://sourceware.org/bugzilla/show_bug.cgi?id=25363
Bug ID: 25363
Summary: memory leak in nm, display_rel_file
Product: binutils
Version: 2.32
Status: UNCONFIRMED
Severity: critical
Priority: P2
Component: binutils
Assignee: unassigned at sourceware dot org
Reporter: featherrain26 at gmail dot com
Target Milestone: ---
Created attachment 12184
--> https://sourceware.org/bugzilla/attachment.cgi?id=12184&action=edit
POC file
Hi, there.
There is a memory leak in file binutils/nm.c, get_data function.
Here is the reproducing environment and procedure:
Distributor ID: Ubuntu
Description: Ubuntu 16.04.6 LTS
Release: 16.04
Codename: xenial
gcc: 5.4.0
compilation:
CFLAGS="-fsanitize=address,undefined" ./configure
run:
./nm-new -C -a -l --synthetic poc
Here is the error message:
=================================================================
==66785==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 64 byte(s) in 1 object(s) allocated from:
#0 0x7ffff6f02602 in malloc
(/usr/lib/x86_64-linux-gnu/libasan.so.2+0x98602)
#1 0x7fbefb in xmalloc
(/playground/playground/binutils-2.32-r/binutils-2.32/binutils/nm-new+0x7fbefb)
#2 0x409f2e in display_rel_file
(/playground/playground/binutils-2.32-r/binutils-2.32/binutils/nm-new+0x409f2e)
#3 0x40b1df in display_file
(/playground/playground/binutils-2.32-r/binutils-2.32/binutils/nm-new+0x40b1df)
#4 0x40db2a in main
(/playground/playground/binutils-2.32-r/binutils-2.32/binutils/nm-new+0x40db2a)
#5 0x7ffff5baf82f in __libc_start_main
(/lib/x86_64-linux-gnu/libc.so.6+0x2082f)
SUMMARY: AddressSanitizer: 64 byte(s) leaked in 1 allocation(s).
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- [Bug binutils/25363] New: memory leak in nm, display_rel_file,
featherrain26 at gmail dot com <=