https://sourceware.org/bugzilla/show_bug.cgi?id=26388
Bug ID: 26388
Summary: A memory leak in xmalloc and xrealloc
Product: binutils
Version: 2.35
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: binutils
Assignee: unassigned at sourceware dot org
Reporter: 15664243668 at 163 dot com
Target Milestone: ---
Created attachment 12771
--> https://sourceware.org/bugzilla/attachment.cgi?id=12771&action=edit
PoC
I have found a memory leak in xmalloc and xrealloc of Binutils-2.35. This bug
is triggered as
$./objdump –dwarf-check -C -g -f -dwarf -x PoC
I compile the binutils-2.35 to the 64-bit LSB version with AddressSanitizer in
Ubuntu 16.04 and print the debug information.
...
=================================================================
==4710==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 8192 byte(s) in 1 object(s) allocated from:
#0 0x7f665e4de602 in malloc
(/usr/lib/x86_64-linux-gnu/libasan.so.2+0x98602)
#1 0xb36457 in xrealloc ../../libiberty/xmalloc.c:177
Direct leak of 96 byte(s) in 1 object(s) allocated from:
#0 0x7f665e4de602 in malloc
(/usr/lib/x86_64-linux-gnu/libasan.so.2+0x98602)
#1 0xb362dc in xmalloc ../../libiberty/xmalloc.c:147
SUMMARY: AddressSanitizer: 8288 byte(s) leaked in 2 allocation(s).
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