Accepting request 830782 from home:berny:branches:Base:System
- gnulib-test-avoid-FP-perror-strerror.patch: Add patch to avoid false-positive error in gnulib tests 'test-perror2' and 'test-strerror_r', visible on armv7l. - grep.spec: Reference the patch. OBS-URL: https://build.opensuse.org/request/show/830782 OBS-URL: https://build.opensuse.org/package/show/Base:System/grep?expand=0&rev=102
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gnulib-test-avoid-FP-perror-strerror.patch
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101
gnulib-test-avoid-FP-perror-strerror.patch
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Avoid false-positive error in gnulib tests 'test-perror2' and 'test-strerror_r'.
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On openSUSE OBS, the above gnulib tests fail on armv7l.
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Corresponding report on the gnulib mailing list:
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https://lists.gnu.org/r/bug-gnulib/2020-08/msg00220.html
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From: Florian Weimer
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Date: Thu, 27 Aug 2020 09:41:34 +0200
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Subject: Use-after-free in test-perror2, test-strerror_r
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The problem is visible with glibc 2.32 under valgrind:
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==20== Invalid read of size 1
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==20== at 0x483DAB4: strcmp (vg_replace_strmem.c:847)
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==20== by 0x109414: main (test-perror2.c:84)
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==20== Address 0x4a1a3d0 is 0 bytes inside a block of size 17 free'd
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==20== at 0x483A9F5: free (vg_replace_malloc.c:538)
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==20== by 0x48E2134: strerror_l (in /usr/lib64/libc-2.32.so)
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==20== by 0x109328: main (test-perror2.c:72)
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==20== Block was alloc'd at
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==20== at 0x4839809: malloc (vg_replace_malloc.c:307)
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==20== by 0x48CA03F: __vasprintf_internal (in /usr/lib64/libc-2.32.so)
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==20== by 0x48A46F9: asprintf (in /usr/lib64/libc-2.32.so)
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==20== by 0x48E2184: strerror_l (in /usr/lib64/libc-2.32.so)
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==20== by 0x1092E2: main (test-perror2.c:67)
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==20==
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==20== Invalid read of size 1
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==20== at 0x483DAC8: strcmp (vg_replace_strmem.c:847)
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==20== by 0x109414: main (test-perror2.c:84)
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==20== Address 0x4a1a3d1 is 1 bytes inside a block of size 17 free'd
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==20== at 0x483A9F5: free (vg_replace_malloc.c:538)
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==20== by 0x48E2134: strerror_l (in /usr/lib64/libc-2.32.so)
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==20== by 0x109328: main (test-perror2.c:72)
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==20== Block was alloc'd at
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==20== at 0x4839809: malloc (vg_replace_malloc.c:307)
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==20== by 0x48CA03F: __vasprintf_internal (in /usr/lib64/libc-2.32.so)
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==20== by 0x48A46F9: asprintf (in /usr/lib64/libc-2.32.so)
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==20== by 0x48E2184: strerror_l (in /usr/lib64/libc-2.32.so)
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==20== by 0x1092E2: main (test-perror2.c:67)
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I think it's the test that's invalid.
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This was reported as an actual grep test failure (without valgrind) on
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32-bit Arm, where glibc malloc happens to return a different buffer
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address for the internal allocation (so that msg3 != msg4).
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test-strerror_r has the same issue.
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Thanks,
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Florian
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Upstream patch:
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https://git.sv.gnu.org/cgit/gnulib.git/commit/?id=175e0bc72808
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From 175e0bc72808d564074c4adcc72aeadb74adfcc6 Mon Sep 17 00:00:00 2001
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From: Paul Eggert <eggert@cs.ucla.edu>
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Date: Thu, 27 Aug 2020 17:52:58 -0700
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Subject: [PATCH] perror, strerror_r: remove unportable tests
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Problem reported by Florian Weimer in:
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https://lists.gnu.org/r/bug-gnulib/2020-08/msg00220.html
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* tests/test-perror2.c (main):
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* tests/test-strerror_r.c (main): Omit unportable tests.
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This downstream patch is identical to upstream one modulo the ChangeLog entry.
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---
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gnulib-tests/test-perror2.c | 3 ---
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gnulib-tests/test-strerror_r.c | 3 ---
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2 files changed, 6 deletions(-)
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Index: gnulib-tests/test-perror2.c
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===================================================================
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--- gnulib-tests/test-perror2.c.orig
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+++ gnulib-tests/test-perror2.c
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@@ -79,9 +79,6 @@ main (void)
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errno = -5;
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perror ("");
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ASSERT (!ferror (stderr));
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- ASSERT (msg1 == msg2 || msg1 == msg4 || STREQ (msg1, str1));
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- ASSERT (msg2 == msg4 || STREQ (msg2, str2));
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- ASSERT (msg3 == msg4 || STREQ (msg3, str3));
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ASSERT (STREQ (msg4, str4));
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free (str1);
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Index: gnulib-tests/test-strerror_r.c
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===================================================================
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--- gnulib-tests/test-strerror_r.c.orig
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+++ gnulib-tests/test-strerror_r.c
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@@ -165,9 +165,6 @@ main (void)
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strerror_r (EACCES, buf, sizeof buf);
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strerror_r (-5, buf, sizeof buf);
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- ASSERT (msg1 == msg2 || msg1 == msg4 || STREQ (msg1, str1));
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- ASSERT (msg2 == msg4 || STREQ (msg2, str2));
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- ASSERT (msg3 == msg4 || STREQ (msg3, str3));
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ASSERT (STREQ (msg4, str4));
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free (str1);
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@ -1,3 +1,11 @@
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-------------------------------------------------------------------
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Mon Aug 31 10:23:23 UTC 2020 - Bernhard Voelker <mail@bernhard-voelker.de>
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- gnulib-test-avoid-FP-perror-strerror.patch: Add patch to
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avoid false-positive error in gnulib tests 'test-perror2' and
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'test-strerror_r', visible on armv7l.
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- grep.spec: Reference the patch.
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-------------------------------------------------------------------
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Wed Jul 1 03:30:01 UTC 2020 - Bernhard Wiedemann <bwiedemann@suse.com>
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@ -27,6 +27,7 @@ Source0: https://ftp.gnu.org/gnu/%{name}/%{name}-%{version}.tar.xz
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Source2: https://ftp.gnu.org/gnu/%{name}/%{name}-%{version}.tar.xz.sig
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Source3: https://savannah.gnu.org/project/memberlist-gpgkeys.php?group=grep&download=1#/%{name}.keyring
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Source4: profile.sh
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Patch1: gnulib-test-avoid-FP-perror-strerror.patch
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BuildRequires: fdupes
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BuildRequires: makeinfo
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BuildRequires: pcre-devel
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@ -42,6 +43,7 @@ match to a specified pattern. By default, grep prints the matching lines.
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%prep
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%setup -q
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%patch1
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%build
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%configure \
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