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[Bug binutils/26374] New: A memory leak in xmalloc

From: 15664243668 at 163 dot com
Subject: [Bug binutils/26374] New: A memory leak in xmalloc
Date: Wed, 12 Aug 2020 10:18:41 +0000


            Bug ID: 26374
           Summary: A memory leak in xmalloc
           Product: binutils
           Version: 2.34
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: binutils
          Assignee: unassigned at sourceware dot org
          Reporter: 15664243668 at 163 dot com
  Target Milestone: ---

Created attachment 12763
  --> https://sourceware.org/bugzilla/attachment.cgi?id=12763&action=edit

I have found a memory leak in xmalloc of Binutils-2.34. This bug is triggered
$./readelf -a PoC
I compile the binutils-2.34 to the 64-bit LSB version with AddressSanitizer in
Ubuntu 16.04 and print the debug information.

==14834==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 4032 byte(s) in 1 object(s) allocated from:
    #0 0x7fab5f959b40 in __interceptor_malloc
    #1 0x5614951da40c in xmalloc xmalloc.c:147

SUMMARY: AddressSanitizer: 4032 byte(s) leaked in 1 allocation(s).

The PoC file is in attachment.

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