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Message #04110
[Bug 1348150] Re: Memory corruption (using memory after freeing) in GNU Make
Tested patch also against Ubunto 14.04 source package of make. It fixes the memory corruption.
Additionally also tested for "real world" build where I initially detected the bug. No problems also there
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https://bugs.launchpad.net/bugs/1348150
Title:
Memory corruption (using memory after freeing) in GNU Make
Status in “make-dfsg” package in Ubuntu:
New
Status in “make-dfsg” package in Fedora:
New
Bug description:
I'm getting memory corruption (accessing memory after freeing) in GNU
Make on trivial Makefile
#---------------------------------------------------------------
release: CXXFLAGS ?= -O2 -mfpmath=sse
debug: CXXFLAGS ?= -g
CXXFLAGS ?= -O2 -g
release debug all:
@echo $(CXXFLAGS)
@echo $(CXX)
#---------------------------------------------------------------
when providing value of CXXFLAGS in command line. For example
make CXXFLAGS=-O2
Reproduced on:
Ubuntu 14.04 LTS x86_64
Ubuntu 12.04.4 LTS i686 (really chroot)
Also reproduced with GNU Make-3.82 from ftp.gnu.org compiled from
sources. Did not happen with GNU Make 4.0 from ftp.gnu.org
Valgrind error messages (package installed on Ubuntu 14.04 LTS x86_64):
==4354== Memcheck, a memory error detector
==4354== Copyright (C) 2002-2013, and GNU GPL'd, by Julian Seward et al.
==4354== Using Valgrind-3.10.0.SVN and LibVEX; rerun with -h for copyright info
==4354== Command: make CXXFLAGS=-O3
==4354==
==4354== Invalid read of size 1
==4354== at 0x4C2E0E2: strlen (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==4354== by 0x4EC066D: strdup (strdup.c:41)
==4354== by 0x4122B8: ??? (in /usr/bin/make)
==4354== by 0x416070: ??? (in /usr/bin/make)
==4354== by 0x416BA3: ??? (in /usr/bin/make)
==4354== by 0x416F73: ??? (in /usr/bin/make)
==4354== by 0x403216: ??? (in /usr/bin/make)
==4354== by 0x4E58EC4: (below main) (libc-start.c:287)
==4354== Address 0x520e880 is 0 bytes inside a block of size 4 free'd
==4354== at 0x4C2BDEC: free (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==4354== by 0x416067: ??? (in /usr/bin/make)
==4354== by 0x416BA3: ??? (in /usr/bin/make)
==4354== by 0x416F73: ??? (in /usr/bin/make)
==4354== by 0x403216: ??? (in /usr/bin/make)
==4354== by 0x4E58EC4: (below main) (libc-start.c:287)
==4354==
==4354== Invalid read of size 1
==4354== at 0x4C2E0F4: strlen (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==4354== by 0x4EC066D: strdup (strdup.c:41)
==4354== by 0x4122B8: ??? (in /usr/bin/make)
==4354== by 0x416070: ??? (in /usr/bin/make)
==4354== by 0x416BA3: ??? (in /usr/bin/make)
==4354== by 0x416F73: ??? (in /usr/bin/make)
==4354== by 0x403216: ??? (in /usr/bin/make)
==4354== by 0x4E58EC4: (below main) (libc-start.c:287)
==4354== Address 0x520e881 is 1 bytes inside a block of size 4 free'd
==4354== at 0x4C2BDEC: free (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==4354== by 0x416067: ??? (in /usr/bin/make)
==4354== by 0x416BA3: ??? (in /usr/bin/make)
==4354== by 0x416F73: ??? (in /usr/bin/make)
==4354== by 0x403216: ??? (in /usr/bin/make)
==4354== by 0x4E58EC4: (below main) (libc-start.c:287)
==4354==
==4354== Invalid read of size 2
==4354== at 0x4C2FDC0: __GI_memcpy (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==4354== by 0x4122B8: ??? (in /usr/bin/make)
==4354== by 0x416070: ??? (in /usr/bin/make)
==4354== by 0x416BA3: ??? (in /usr/bin/make)
==4354== by 0x416F73: ??? (in /usr/bin/make)
==4354== by 0x403216: ??? (in /usr/bin/make)
==4354== by 0x4E58EC4: (below main) (libc-start.c:287)
==4354== Address 0x520e880 is 0 bytes inside a block of size 4 free'd
==4354== at 0x4C2BDEC: free (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==4354== by 0x416067: ??? (in /usr/bin/make)
==4354== by 0x416BA3: ??? (in /usr/bin/make)
==4354== by 0x416F73: ??? (in /usr/bin/make)
==4354== by 0x403216: ??? (in /usr/bin/make)
==4354== by 0x4E58EC4: (below main) (libc-start.c:287)
==4354==
From similar test with make-3.82 I'm getting:
==24068== Memcheck, a memory error detector
==24068== Copyright (C) 2002-2013, and GNU GPL'd, by Julian Seward et al.
==24068== Using Valgrind-3.10.0.SVN and LibVEX; rerun with -h for copyright info
==24068== Command: make-3.82 CXXFLAGS=-O3
==24068==
==24068== Invalid read of size 1
==24068== at 0x4C2E0E2: strlen (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==24068== by 0x4EC066D: strdup (strdup.c:41)
==24068== by 0x412E88: xstrdup (misc.c:413)
==24068== by 0x416B8B: eval (read.c:1818)
==24068== by 0x417469: eval_makefile (read.c:423)
==24068== by 0x417823: read_all_makefiles (read.c:257)
==24068== by 0x403410: main (main.c:1659)
==24068== Address 0x521c650 is 0 bytes inside a block of size 4 free'd
==24068== at 0x4C2BDEC: free (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==24068== by 0x416B82: eval (read.c:1817)
==24068== by 0x417469: eval_makefile (read.c:423)
==24068== by 0x417823: read_all_makefiles (read.c:257)
==24068== by 0x403410: main (main.c:1659)
==24068==
==24068== Invalid read of size 1
==24068== at 0x4C2E0F4: strlen (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==24068== by 0x4EC066D: strdup (strdup.c:41)
==24068== by 0x412E88: xstrdup (misc.c:413)
==24068== by 0x416B8B: eval (read.c:1818)
==24068== by 0x417469: eval_makefile (read.c:423)
==24068== by 0x417823: read_all_makefiles (read.c:257)
==24068== by 0x403410: main (main.c:1659)
==24068== Address 0x521c651 is 1 bytes inside a block of size 4 free'd
==24068== at 0x4C2BDEC: free (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==24068== by 0x416B82: eval (read.c:1817)
==24068== by 0x417469: eval_makefile (read.c:423)
==24068== by 0x417823: read_all_makefiles (read.c:257)
==24068== by 0x403410: main (main.c:1659)
==24068==
==24068== Invalid read of size 2
==24068== at 0x4C2FDC0: __GI_memcpy (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==24068== by 0x412E88: xstrdup (misc.c:413)
==24068== by 0x416B8B: eval (read.c:1818)
==24068== by 0x417469: eval_makefile (read.c:423)
==24068== by 0x417823: read_all_makefiles (read.c:257)
==24068== by 0x403410: main (main.c:1659)
==24068== Address 0x521c650 is 0 bytes inside a block of size 4 free'd
==24068== at 0x4C2BDEC: free (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==24068== by 0x416B82: eval (read.c:1817)
==24068== by 0x417469: eval_makefile (read.c:423)
==24068== by 0x417823: read_all_makefiles (read.c:257)
==24068== by 0x403410: main (main.c:1659)
==24068==
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: make 3.81-8.2ubuntu3
ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4
Uname: Linux 3.13.0-32-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
CurrentDesktop: KDE
Date: Thu Jul 24 14:35:00 2014
Dependencies:
gcc-4.9-base 4.9.1-1 [origin: unknown]
libc6 2.19-0ubuntu6
libgcc1 1:4.9.1-1 [origin: unknown]
multiarch-support 2.19-0ubuntu6
InstallationDate: Installed on 2014-07-07 (17 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
SourcePackage: make-dfsg
UpgradeStatus: No upgrade log present (probably fresh install)
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