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Auto-sync with upstream branch release/2.37/master

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Upstream commit: a704fd9a133bfb10510e18702f48a6a9c88dbbd5:

- Create ChangeLog.old/ChangeLog.26. (tag: glibc-2.37)
- Prepare for glibc 2.37 release.
- x86: Fix strncat-avx2.S reading past length [BZ #30065]
- Update install.texi, and regenerate INSTALL.
- Update manual/contrib.texi.
- Update NEWS file with bug fixes.
- Regenerate configure.
- Update all PO files in preparation for release.
- doc: correct _FORTIFY_SOURCE doc in features.h
- libio: Update number of written bytes in dprintf implementation

- Drop already included glibc-dprintf-length.patch patch.
- Apply glibc-printf-grouping-swbz30068.patch to fix swbz#30068.
This commit is contained in:
Carlos O'Donell 2023-02-01 22:27:40 -05:00
parent f87342d79f
commit 97c044f99a
4 changed files with 272 additions and 92 deletions
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87
glibc-dprintf-length.patch
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@ -1,87 +0,0 @@
Author: Florian Weimer <fweimer@redhat.com>
Date: Tue Jan 31 09:44:16 2023 +0100
libio: Update number of written bytes in dprintf implementation
The __printf_buffer_flush_dprintf function needs to record that
the buffer has been written before reusing it. Without this
accounting, dprintf always returns zero.
Fixes commit 8ece45e4f586abd212d1c02d74d38ef681a45600
("libio: Convert __vdprintf_internal to buffers").
diff --git a/libio/iovdprintf.c b/libio/iovdprintf.c
index fb359d263de3428c..d9fa886fdf3e2f53 100644
--- a/libio/iovdprintf.c
+++ b/libio/iovdprintf.c
@@ -54,6 +54,7 @@ __printf_buffer_flush_dprintf (struct __printf_buffer_dprintf *buf)
}
p += ret;
}
+ buf->base.written += buf->base.write_ptr - buf->base.write_base;
buf->base.write_ptr = buf->buf;
}
diff --git a/stdio-common/Makefile b/stdio-common/Makefile
index da3034d847578074..34fdd6d1f890c282 100644
--- a/stdio-common/Makefile
+++ b/stdio-common/Makefile
@@ -180,6 +180,7 @@ tests := \
tst-bz11319 \
tst-bz11319-fortify2 \
tst-cookie \
+ tst-dprintf-length \
tst-fdopen \
tst-ferror \
tst-fgets \
diff --git a/stdio-common/tst-dprintf-length.c b/stdio-common/tst-dprintf-length.c
new file mode 100644
index 0000000000000000..abe2caf45aa46255
--- /dev/null
+++ b/stdio-common/tst-dprintf-length.c
@@ -0,0 +1,45 @@
+/* Test that dprintf returns the expected length.
+ Copyright (C) 2023 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#include <stdio.h>
+#include <string.h>
+#include <support/check.h>
+#include <sys/socket.h>
+#include <unistd.h>
+
+static int
+do_test (void)
+{
+ /* Use a datagram socket to check that everything arrives in one packet.
+ The dprintf function should perform a single write call. */
+ int fds[2];
+ TEST_VERIFY_EXIT (socketpair (AF_LOCAL, SOCK_DGRAM, 0, fds) == 0);
+
+ TEST_COMPARE (dprintf (fds[0], "(%d)%s[%d]", 123, "---", 4567), 14);
+
+ char buf[32];
+ ssize_t ret = read (fds[1], buf, sizeof (buf));
+ TEST_VERIFY_EXIT (ret > 0);
+ TEST_COMPARE_BLOB (buf, ret, "(123)---[4567]", strlen ("(123)---[4567]"));
+
+ close (fds[1]);
+ close (fds[0]);
+ return 0;
+}
+
+#include <support/test-driver.c>

251
glibc-printf-grouping-swbz30068.patch Normal file
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@ -0,0 +1,251 @@
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To: libc-alpha@sourceware.org
Cc: Carlos O'Donell <carlos@redhat.com>,
Andreas Schwab <schwab@suse.de>
Subject: [PATCH] Account for grouping in printf width (bug 30068)
Date: Sat, 4 Feb 2023 14:18:18 -0500
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This is a partial fix for mishandling of grouping when formatting
integers. It properly computes the width in the presence of grouping
characteres when the with is larger than the number of significant
digits. The precision related issue is documented in bug 23432.
Co-authored-by: Andreas Schwab <schwab@suse.de>
---
stdio-common/Makefile | 2 ++
stdio-common/tst-grouping3.c | 54 +++++++++++++++++++++++++++++
stdio-common/vfprintf-process-arg.c | 22 +++++++++---
3 files changed, 73 insertions(+), 5 deletions(-)
create mode 100644 stdio-common/tst-grouping3.c
diff --git a/stdio-common/Makefile b/stdio-common/Makefile
index 34fdd6d1f8..652d9e5f95 100644
--- a/stdio-common/Makefile
+++ b/stdio-common/Makefile
@@ -196,6 +196,7 @@ tests := \
tst-gets \
tst-grouping \
tst-grouping2 \
+ tst-grouping3 \
tst-long-dbl-fphex \
tst-memstream-string \
tst-obprintf \
@@ -340,6 +341,7 @@ $(objpfx)tst-sscanf.out: $(gen-locales)
$(objpfx)tst-swprintf.out: $(gen-locales)
$(objpfx)tst-vfprintf-mbs-prec.out: $(gen-locales)
$(objpfx)tst-vfprintf-width-i18n.out: $(gen-locales)
+$(objpfx)tst-grouping3.out: $(gen-locales)
endif
tst-printf-bz18872-ENV = MALLOC_TRACE=$(objpfx)tst-printf-bz18872.mtrace \
diff --git a/stdio-common/tst-grouping3.c b/stdio-common/tst-grouping3.c
new file mode 100644
index 0000000000..e9e39218e2
--- /dev/null
+++ b/stdio-common/tst-grouping3.c
@@ -0,0 +1,54 @@
+/* Test printf with grouping and padding (bug 30068)
+ Copyright (C) 2023 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#include <locale.h>
+#include <stdio.h>
+#include <support/check.h>
+#include <support/support.h>
+
+static int
+do_test (void)
+{
+ char buf[80];
+
+ xsetlocale (LC_NUMERIC, "de_DE.UTF-8");
+
+ /* The format string has the following conversion specifier:
+ ' - Use thousands grouping.
+ + - The result of a signed conversion shall begin with a sign.
+ - - Left justified.
+ 13 - Minimum 13 bytes of width.
+ 9 - Minimum 9 digits of precision.
+
+ In bug 30068 the grouping characters were not accounted for in
+ the width, and were added after the fact resulting in a 15-byte
+ output instead of a 13-byte output. The two additional bytes
+ come from the locale-specific thousands separator. This increase
+ in size could result in a buffer overflow if a reasonable caller
+ calculated the size of the expected buffer using nl_langinfo to
+ determine the sie of THOUSEP in bytes.
+
+ This bug is distinct from bug 23432 which has to do with the
+ minimum precision calculation (digit based). */
+ sprintf (buf, "%+-'13.9d", 1234567);
+ TEST_COMPARE_STRING (buf, "+001.234.567 ");
+
+ return 0;
+}
+
+#include <support/test-driver.c>
diff --git a/stdio-common/vfprintf-process-arg.c b/stdio-common/vfprintf-process-arg.c
index 24c9125f9f..8c0fcbcf78 100644
--- a/stdio-common/vfprintf-process-arg.c
+++ b/stdio-common/vfprintf-process-arg.c
@@ -186,11 +186,17 @@ LABEL (unsigned_number): /* Unsigned number of base BASE. */
bool octal_marker = (prec <= number_length && number.word != 0
&& alt && base == 8);
- prec = MAX (0, prec - (workend - string));
+ /* At this point prec_inc is the additional bytes required for the
+ specificed precision. It is 0 if the precision would not have
+ required additional bytes i.e. the number of input digits is more
+ than the precision. It is greater than zero if the precision is
+ more than the number of digits without grouping (precision only
+ considers digits). */
+ unsigned int prec_inc = MAX (0, prec - (workend - string));
if (!left)
{
- width -= number_length + prec;
+ width -= number_length + prec_inc;
if (number.word != 0 && alt && (base == 16 || base == 2))
/* Account for 0X, 0x, 0B or 0b hex or binary marker. */
@@ -221,7 +227,7 @@ LABEL (unsigned_number): /* Unsigned number of base BASE. */
Xprintf_buffer_putc (buf, spec);
}
- width += prec;
+ width += prec_inc;
Xprintf_buffer_pad (buf, L_('0'), width);
if (octal_marker)
@@ -237,6 +243,8 @@ LABEL (unsigned_number): /* Unsigned number of base BASE. */
}
else
{
+ /* Perform left justification adjustments. */
+
if (is_negative)
{
Xprintf_buffer_putc (buf, L_('-'));
@@ -263,9 +271,13 @@ LABEL (unsigned_number): /* Unsigned number of base BASE. */
if (octal_marker)
--width;
- width -= workend - string + prec;
+ /* Adjust the width by subtracting the number of bytes
+ required to represent the number with grouping characters
+ (NUMBER_LENGTH) and any additional bytes required for
+ precision. */
+ width -= number_length + prec_inc;
- Xprintf_buffer_pad (buf, L_('0'), prec);
+ Xprintf_buffer_pad (buf, L_('0'), prec_inc);
if (octal_marker)
Xprintf_buffer_putc (buf, L_('0'));

24
glibc.spec
View File

@ -1,5 +1,5 @@
%global glibcsrcdir glibc-2.36.9000-456-g2f39e44a84
%global glibcversion 2.36.9000
%global glibcsrcdir glibc-2.37
%global glibcversion 2.37
# Pre-release tarballs are pulled in from git using a command that is
# effectively:
#
@ -159,7 +159,7 @@ Version: %{glibcversion}
# - It allows using the Release number without the %%dist tag in the dependency
# generator to make the generated requires interchangeable between Rawhide
# and ELN (.elnYY < .fcXX).
%global baserelease 25
%global baserelease 1
Release: %{baserelease}%{?dist}
# In general, GPLv2+ is used by programs, LGPLv2+ is used for
@ -230,7 +230,7 @@ Patch9: glibc-rh827510.patch
Patch13: glibc-fedora-localedata-rh61908.patch
Patch17: glibc-cs-path.patch
Patch23: glibc-python3.patch
Patch24: glibc-dprintf-length.patch
Patch24: glibc-printf-grouping-swbz30068.patch
##############################################################################
# Continued list of core "glibc" package information:
@ -2194,6 +2194,22 @@ update_gconv_modules_cache ()
%files -f compat-libpthread-nonshared.filelist -n compat-libpthread-nonshared
%changelog
* Sat Feb 04 2023 Carlos O'Donell <carlos@redhat.com> - 2.37-1
- Drop already included glibc-dprintf-length.patch patch.
- Apply glibc-printf-grouping-swbz30068.patch to fix swbz#30068.
- Auto-sync with upstream branch release/2.37/master,
commit a704fd9a133bfb10510e18702f48a6a9c88dbbd5:
- Create ChangeLog.old/ChangeLog.26. (tag: glibc-2.37)
- Prepare for glibc 2.37 release.
- x86: Fix strncat-avx2.S reading past length [BZ #30065]
- Update install.texi, and regenerate INSTALL.
- Update manual/contrib.texi.
- Update NEWS file with bug fixes.
- Regenerate configure.
- Update all PO files in preparation for release.
- doc: correct _FORTIFY_SOURCE doc in features.h
- libio: Update number of written bytes in dprintf implementation
* Tue Jan 31 2023 Florian Weimer <fweimer@redhat.com> - 2.36.9000-25
- Apply glibc-dprintf-length.patch to fix dprintf return value regression.
- Auto-sync with upstream branch master,

2
sources
View File

@ -1 +1 @@
SHA512 (glibc-2.36.9000-456-g2f39e44a84.tar.xz) = 1a2d8963b715554b6e0a709f2860dafb93fcfeb0379ce2f7353010398d50c092cb8386caa9e28de87e82da321296ad27cc612fd8cfcb04a237488783db205c17
SHA512 (glibc-2.37.tar.xz) = 4fc5932f206bb1b8b54828a28af1a681616b838bbab60c81c82155f3629cbfe1301d271af65511ed917f4c6949a025429221fe6035753282f15346919f15b90c