[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Bug binutils/24002] New: A memory leak issue was discovered in cplus-de
From: |
wcventure at 126 dot com |
Subject: |
[Bug binutils/24002] New: A memory leak issue was discovered in cplus-dem.c |
Date: |
Tue, 18 Dec 2018 15:02:14 +0000 |
https://sourceware.org/bugzilla/show_bug.cgi?id=24002
Bug ID: 24002
Summary: A memory leak issue was discovered in cplus-dem.c
Product: binutils
Version: 2.31
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: binutils
Assignee: unassigned at sourceware dot org
Reporter: wcventure at 126 dot com
Target Milestone: ---
Created attachment 11470
--> https://sourceware.org/bugzilla/attachment.cgi?id=11470&action=edit
POC1
Hi there,
A memory leak issue was discovered in cplus-dem.c, as distributed in GNU
Binutils 2.31.
In demangle_template function in cplus-dem.c, the are many heap allocations.
But these heap allocations didn't deallocate in the end.
Please use the "./c++filt -t < $POC" to reproduce the bug.
To reproduce this bug. You need to build bintuils-2.31 with ASAN, setting
following Command:
> export ASAN_OPTIONS=abort_on_error=1:symbolize=1:detect_leaks=1
The Leak Sanitizer dumps the stack trace as follows:
> =================================================================
> ==16096==ERROR: LeakSanitizer: detected memory leaks
>
> Direct leak of 8 byte(s) in 1 object(s) allocated from:
> #0 0x7f1c50822602 in malloc
> (/usr/lib/x86_64-linux-gnu/libasan.so.2+0x98602)
> #1 0x8247c9 in xmalloc xmalloc.c:147
> #2 0x7cf501 in demangle_template cplus-dem.c:2228
> #3 0x7cb3a5 in demangle_signature cplus-dem.c:1691
> #4 0x7d39fd in iterate_demangle_function cplus-dem.c:2743
> #5 0x7d5e9e in demangle_prefix cplus-dem.c:2971
> #6 0x7c6dfa in internal_cplus_demangle cplus-dem.c:1253
> #7 0x7c4464 in cplus_demangle cplus-dem.c:918
> #8 0x4033b3 in demangle_it binutils-2.31_ASAN/binutils/cxxfilt.c:62
> #9 0x403f1f in main binutils-2.31_ASAN/binutils/cxxfilt.c:276
> #10 0x7f1c4f4cf82f in __libc_start_main
> (/lib/x86_64-linux-gnu/libc.so.6+0x2082f)
>
> Indirect leak of 2 byte(s) in 1 object(s) allocated from:
> #0 0x7f1c50822602 in malloc
> (/usr/lib/x86_64-linux-gnu/libasan.so.2+0x98602)
> #1 0x8247c9 in xmalloc xmalloc.c:147
> #2 0x7d0439 in demangle_template cplus-dem.c:2327
> #3 0x7cb3a5 in demangle_signature cplus-dem.c:1691
> #4 0x7d39fd in iterate_demangle_function cplus-dem.c:2743
> #5 0x7d5e9e in demangle_prefix cplus-dem.c:2971
> #6 0x7c6dfa in internal_cplus_demangle cplus-dem.c:1253
> #7 0x7c4464 in cplus_demangle cplus-dem.c:918
> #8 0x4033b3 in demangle_it binutils-2.31_ASAN/binutils/cxxfilt.c:62
> #9 0x403f1f in main binutils-2.31_ASAN/binutils/cxxfilt.c:276
> #10 0x7f1c4f4cf82f in __libc_start_main
> (/lib/x86_64-linux-gnu/libc.so.6+0x2082f)
>
> SUMMARY: AddressSanitizer: 10 byte(s) leaked in 2 allocation(s).
--
You are receiving this mail because:
You are on the CC list for the bug.
- [Bug binutils/24002] New: A memory leak issue was discovered in cplus-dem.c,
wcventure at 126 dot com <=