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conform tests: call perl with '-I.'

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Historically perl includes the current directory in the module search
path. Over the time this has been considered as a security issue and
the recent vulnerabilities [1] made people to reconsider this behaviour.
It is almost sure that this will be removed in the future [2], possibly
for the 5.26 release, although this is not yet firmly decided.

Debian has decided to backport the patches [3], so the perl binary in
unstable do not have '.' in @INC anymore.

This behaviour is used in the conform perl scripts to include the
GlibcConform module. This patch fixes that by calling perl with '-I.'.
This is not a security issue in this case as make ensures that the
current directory is $(srcdir)/conform/ when the scripts are called.
Passing the full path would do exactly the same.

[1] CVE-2016-1238 CVE-2016-6185
[2] https://rt.perl.org/Public/Bug/Display.html?id=127810
[3] https://lists.debian.org/debian-devel-announce/2016/08/msg00013.html

Changelog:
	* conform/Makefile (conformtest-header-tests): Pass -I. to $(PERL).
	(linknamespace-symlists-tests): Likewise.
	(linknamespace-header-tests): Likewise.
This commit is contained in:
Aurelien Jarno 2016-09-05 22:53:22 +02:00
parent ead3cea7d8
commit 6d5336211d
2 changed files with 9 additions and 3 deletions
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6
ChangeLog
View File

@ -1,3 +1,9 @@
2016-09-05 Aurelien Jarno <aurelien@aurel32.net>
* conform/Makefile (conformtest-header-tests): Pass -I. to $(PERL).
(linknamespace-symlists-tests): Likewise.
(linknamespace-header-tests): Likewise.
2016-09-03 Aurelien Jarno <aurelien@aurel32.net>
[BZ #19810]

6
conform/Makefile
View File

@ -196,13 +196,13 @@ $(conformtest-header-tests): $(objpfx)%/conform.out: \
conformtest.pl $(conformtest-headers-data)
(set -e; std_hdr=$*; std=$${std_hdr%%/*}; hdr=$${std_hdr#*/}; \
mkdir -p $(@D)/scratch; \
$(PERL) conformtest.pl --tmpdir=$(@D)/scratch --cc='$(CC)' \
$(PERL) -I. conformtest.pl --tmpdir=$(@D)/scratch --cc='$(CC)' \
--flags='$(conformtest-cc-flags)' --standard=$$std \
--headers=$$hdr > $@); \
$(evaluate-test)
$(linknamespace-symlists-tests): $(objpfx)symlist-%: list-header-symbols.pl
$(PERL) -w $< --tmpdir=$(objpfx) --cc='$(CC)' \
$(PERL) -I. -w $< --tmpdir=$(objpfx) --cc='$(CC)' \
--flags='$(conformtest-cc-flags)' --standard=$* \
--headers="$(strip $(conformtest-headers-$*))" \
> $@ 2> $@.err; \
@ -232,7 +232,7 @@ $(linknamespace-header-tests): $(objpfx)%/linknamespace.out: \
$(linknamespace-symlist-stdlibs-tests)
(set -e; std_hdr=$*; std=$${std_hdr%%/*}; hdr=$${std_hdr#*/}; \
mkdir -p $(@D)/scratch; \
$(PERL) -w $< --tmpdir=$(@D)/scratch --cc='$(CC)' \
$(PERL) -I. -w $< --tmpdir=$(@D)/scratch --cc='$(CC)' \
--flags='$(conformtest-cc-flags)' --standard=$$std \
--stdsyms=$(objpfx)symlist-$$std --header=$$hdr \
--libsyms=$(objpfx)symlist-stdlibs-$$std \