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glibc: update upstream patches

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This commit is contained in:
Helmut Pozimski 2018-09-30 21:28:04 +02:00
parent a2fdb6837f
commit a896cfc96e
9 changed files with 895 additions and 1 deletions
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1
srcpkgs/glibc/patches/glibc-upstream-13.patch
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@ -50,3 +50,4 @@ index cf0213ece5..85239cedbf 100644
new_argv[0] = (char *) _PATH_BSHELL;
new_argv[1] = (char *) args->file;
if (argc > 1)

60
srcpkgs/glibc/patches/glibc-upstream-14.patch Normal file
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@ -0,0 +1,60 @@
From e7d22db29cfdd2f1fb97a70a76fa53d151569945 Mon Sep 17 00:00:00 2001
From: Mingli Yu <Mingli.Yu@windriver.com>
Date: Thu, 20 Sep 2018 12:41:13 +0200
Subject: [PATCH 14] Linux gethostid: Check for NULL value from
gethostbyname_r [BZ #23679]
A NULL value can happen with certain gethostbyname_r failures.
(cherry picked from commit 1214ba06e6771acb953a190091b0f6055c64fd25)
---
ChangeLog | 5 +++++
NEWS | 1 +
sysdeps/unix/sysv/linux/gethostid.c | 4 ++--
3 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index d9e7e6f1d8..fc1ea1e418 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2018-09-20 Mingli Yu <Mingli.Yu@windriver.com>
+
+ * sysdeps/unix/sysv/linux/gethostid.c (gethostid): Check for NULL
+ value from gethostbyname_r.
+
2018-09-06 Stefan Liebler <stli@linux.ibm.com>
* sysdeps/unix/sysv/linux/spawni.c (maybe_script_execute):
diff --git a/NEWS b/NEWS
index 2855ffde58..502e0c19f5 100644
--- a/NEWS
+++ b/NEWS
@@ -13,6 +13,7 @@ The following bugs are resolved with this release:
[23521] nss_files aliases database file stream leak
[23538] pthread_cond_broadcast: Fix waiters-after-spinning case
[23578] regex: Fix memory overread in re_compile_pattern
+ [23679] gethostid: Missing NULL check for gethostbyname_r result
Version 2.28
diff --git a/sysdeps/unix/sysv/linux/gethostid.c b/sysdeps/unix/sysv/linux/gethostid.c
index 2e20f034dc..ee0190e7f9 100644
--- a/sysdeps/unix/sysv/linux/gethostid.c
+++ b/sysdeps/unix/sysv/linux/gethostid.c
@@ -102,12 +102,12 @@ gethostid (void)
{
int ret = __gethostbyname_r (hostname, &hostbuf,
tmpbuf.data, tmpbuf.length, &hp, &herr);
- if (ret == 0)
+ if (ret == 0 && hp != NULL)
break;
else
{
/* Enlarge the buffer on ERANGE. */
- if (herr == NETDB_INTERNAL && errno == ERANGE)
+ if (ret != 0 && herr == NETDB_INTERNAL && errno == ERANGE)
{
if (!scratch_buffer_grow (&tmpbuf))
return 0;

166
srcpkgs/glibc/patches/glibc-upstream-15.patch Normal file
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@ -0,0 +1,166 @@
From 307d04334d516bb180f484a2b283f97310bfee66 Mon Sep 17 00:00:00 2001
From: Florian Weimer <fweimer@redhat.com>
Date: Thu, 20 Sep 2018 12:03:01 +0200
Subject: [PATCH 15] misc: New test misc/tst-gethostid
The empty /etc/hosts file used to trigger bug 23679.
(cherry picked from commit db9a8ad4ff3fc58e3773a9a4d0cabe3c1bc9c94c)
---
ChangeLog | 6 +++
misc/Makefile | 7 +++
misc/tst-gethostid.c | 108 +++++++++++++++++++++++++++++++++++++++++++
3 files changed, 121 insertions(+)
create mode 100644 misc/tst-gethostid.c
diff --git a/ChangeLog b/ChangeLog
index fc1ea1e418..b380048e1e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2018-09-20 Florian Weimer <fweimer@redhat.com>
+
+ * misc/tst-gethostid.c: New file.
+ * misc/Makefile [$(build-shared)] (tests): Add tst-gethostid.
+ (tst-gethostid): Link with -ldl.
+
2018-09-20 Mingli Yu <Mingli.Yu@windriver.com>
* sysdeps/unix/sysv/linux/gethostid.c (gethostid): Check for NULL
diff --git a/misc/Makefile b/misc/Makefile
index b7be2bc19a..c9f81515ac 100644
--- a/misc/Makefile
+++ b/misc/Makefile
@@ -86,6 +86,11 @@ tests := tst-dirname tst-tsearch tst-fdset tst-efgcvt tst-mntent tst-hsearch \
tst-preadvwritev tst-preadvwritev64 tst-makedev tst-empty \
tst-preadvwritev2 tst-preadvwritev64v2
+# Tests which need libdl.
+ifeq (yes,$(build-shared))
+tests += tst-gethostid
+endif
+
tests-internal := tst-atomic tst-atomic-long tst-allocate_once
tests-static := tst-empty
@@ -145,3 +150,5 @@ tst-allocate_once-ENV = MALLOC_TRACE=$(objpfx)tst-allocate_once.mtrace
$(objpfx)tst-allocate_once-mem.out: $(objpfx)tst-allocate_once.out
$(common-objpfx)malloc/mtrace $(objpfx)tst-allocate_once.mtrace > $@; \
$(evaluate-test)
+
+$(objpfx)tst-gethostid: $(libdl)
diff --git a/misc/tst-gethostid.c b/misc/tst-gethostid.c
new file mode 100644
index 0000000000..1490aaf3f5
--- /dev/null
+++ b/misc/tst-gethostid.c
@@ -0,0 +1,108 @@
+/* Basic test for gethostid.
+ Copyright (C) 2018 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
+ <http://www.gnu.org/licenses/>. */
+
+#include <gnu/lib-names.h>
+#include <nss.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <support/namespace.h>
+#include <support/support.h>
+#include <support/temp_file.h>
+#include <support/xdlfcn.h>
+#include <support/xstdio.h>
+#include <support/xunistd.h>
+#include <unistd.h>
+
+/* Initial test is run outside a chroot, to increase the likelihood of
+ success. */
+static void
+outside_chroot (void *closure)
+{
+ long id = gethostid ();
+ printf ("info: host ID outside chroot: 0x%lx\n", id);
+}
+
+/* The same, but this time perform a chroot operation. */
+static void
+in_chroot (void *closure)
+{
+ const char *chroot_path = closure;
+ xchroot (chroot_path);
+ long id = gethostid ();
+ printf ("info: host ID in chroot: 0x%lx\n", id);
+}
+
+static int
+do_test (void)
+{
+ support_isolate_in_subprocess (outside_chroot, NULL);
+
+ /* Now run the test inside a chroot. */
+ support_become_root ();
+ if (!support_can_chroot ())
+ /* Cannot perform further tests. */
+ return 0;
+
+ /* Only use nss_files. */
+ __nss_configure_lookup ("hosts", "files");
+
+ /* Load the DSO outside of the chroot. */
+ xdlopen (LIBNSS_FILES_SO, RTLD_LAZY);
+
+ char *chroot_dir = support_create_temp_directory ("tst-gethostid-");
+ support_isolate_in_subprocess (in_chroot, chroot_dir);
+
+ /* Tests with /etc/hosts in the chroot. */
+ {
+ char *path = xasprintf ("%s/etc", chroot_dir);
+ add_temp_file (path);
+ xmkdir (path, 0777);
+ free (path);
+ path = xasprintf ("%s/etc/hosts", chroot_dir);
+ add_temp_file (path);
+
+ FILE *fp = xfopen (path, "w");
+ xfclose (fp);
+ printf ("info: chroot test with an empty /etc/hosts file\n");
+ support_isolate_in_subprocess (in_chroot, chroot_dir);
+
+ char hostname[1024];
+ int ret = gethostname (hostname, sizeof (hostname));
+ if (ret < 0)
+ printf ("warning: invalid result from gethostname: %d\n", ret);
+ else if (strlen (hostname) == 0)
+ puts ("warning: gethostname returned empty string");
+ else
+ {
+ printf ("info: chroot test with IPv6 address in /etc/hosts for: %s\n",
+ hostname);
+ fp = xfopen (path, "w");
+ /* Use an IPv6 address to induce another lookup failure. */
+ fprintf (fp, "2001:db8::1 %s\n", hostname);
+ xfclose (fp);
+ support_isolate_in_subprocess (in_chroot, chroot_dir);
+ }
+ free (path);
+ }
+ free (chroot_dir);
+
+ return 0;
+}
+
+#include <support/test-driver.c>

118
srcpkgs/glibc/patches/glibc-upstream-16.patch Normal file
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@ -0,0 +1,118 @@
From a55e109709af55e6ed67d3f9536cac5d929c982e Mon Sep 17 00:00:00 2001
From: Carlos O'Donell <carlos@redhat.com>
Date: Wed, 5 Sep 2018 01:16:42 -0400
Subject: [PATCH 16] Fix tst-setcontext9 for optimized small stacks.
If the compiler reduces the stack usage in function f1 before calling
into function f2, then when we swapcontext back to f1 and continue
execution we may overwrite registers that were spilled to the stack
while f2 was executing. Later when we return to f2 the corrupt
registers will be reloaded from the stack and the test will crash. This
was most commonly observed on i686 with __x86.get_pc_thunk.dx and
needing to save and restore $edx. Overall i686 has few registers and
the spilling to the stack is bound to happen, therefore the solution to
making this test robust is to split function f1 into two parts f1a and
f1b, and allocate f1b it's own stack such that subsequent execution does
not overwrite the stack in use by function f2.
Tested on i686 and x86_64.
Signed-off-by: Carlos O'Donell <carlos@redhat.com>
(cherry picked from commit 791b350dc725545e3f9b5db0f97ebdbc60c9735f)
---
ChangeLog | 6 +++++
stdlib/tst-setcontext9.c | 47 ++++++++++++++++++++++++++++++++--------
2 files changed, 44 insertions(+), 9 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index b380048e1e..bda963483f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2018-09-19 Carlos O'Donell <carlos@redhat.com>
+
+ * stdlib/tst-setcontext9.c (f1): Rename to...
+ (f1a): ... this.
+ (f1b): New function implementing lower half of f1 in alternate stack.
+
2018-09-20 Florian Weimer <fweimer@redhat.com>
* misc/tst-gethostid.c: New file.
diff --git a/stdlib/tst-setcontext9.c b/stdlib/tst-setcontext9.c
index 4636ce9030..db8355766c 100644
--- a/stdlib/tst-setcontext9.c
+++ b/stdlib/tst-setcontext9.c
@@ -41,26 +41,55 @@ f2 (void)
}
static void
-f1 (void)
+f1b (void)
{
- puts ("start f1");
- if (getcontext (&ctx[2]) != 0)
- {
- printf ("%s: getcontext: %m\n", __FUNCTION__);
- exit (EXIT_FAILURE);
- }
if (done)
{
- puts ("set context in f1");
+ puts ("set context in f1b");
if (setcontext (&ctx[3]) != 0)
{
printf ("%s: setcontext: %m\n", __FUNCTION__);
exit (EXIT_FAILURE);
}
}
+ exit (EXIT_FAILURE);
+}
+
+static void
+f1a (void)
+{
+ char st2[32768];
+ puts ("start f1a");
+ if (getcontext (&ctx[2]) != 0)
+ {
+ printf ("%s: getcontext: %m\n", __FUNCTION__);
+ exit (EXIT_FAILURE);
+ }
+ ctx[2].uc_stack.ss_sp = st2;
+ ctx[2].uc_stack.ss_size = sizeof st2;
+ ctx[2].uc_link = &ctx[0];
+ makecontext (&ctx[2], (void (*) (void)) f1b, 0);
f2 ();
}
+/* The execution path through the test looks like this:
+ do_test (call)
+ -> "making contexts"
+ -> "swap contexts"
+ f1a (via swapcontext to ctx[1], with alternate stack)
+ -> "start f1a"
+ f2 (call)
+ -> "swap contexts in f2"
+ f1b (via swapcontext to ctx[2], with alternate stack)
+ -> "set context in f1b"
+ do_test (via setcontext to ctx[3], main stack)
+ -> "setcontext"
+ f2 (via setcontext to ctx[4], with alternate stack)
+ -> "end f2"
+
+ We must use an alternate stack for f1b, because if we don't then the
+ result of executing an earlier caller may overwrite registers
+ spilled to the stack in f2. */
static int
do_test (void)
{
@@ -79,7 +108,7 @@ do_test (void)
ctx[1].uc_stack.ss_sp = st1;
ctx[1].uc_stack.ss_size = sizeof st1;
ctx[1].uc_link = &ctx[0];
- makecontext (&ctx[1], (void (*) (void)) f1, 0);
+ makecontext (&ctx[1], (void (*) (void)) f1a, 0);
puts ("swap contexts");
if (swapcontext (&ctx[3], &ctx[1]) != 0)
{

130
srcpkgs/glibc/patches/glibc-upstream-17.patch Normal file
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@ -0,0 +1,130 @@
From 0ef2f4400c06927af34c515555f68840a70ba409 Mon Sep 17 00:00:00 2001
From: Wilco Dijkstra <wdijkstr@arm.com>
Date: Wed, 19 Sep 2018 16:50:18 +0100
Subject: [PATCH 17] Fix strstr bug with huge needles (bug 23637)
The generic strstr in GLIBC 2.28 fails to match huge needles. The optimized
AVAILABLE macro reads ahead a large fixed amount to reduce the overhead of
repeatedly checking for the end of the string. However if the needle length
is larger than this, two_way_long_needle may confuse this as meaning the end
of the string and return NULL. This is fixed by adding the needle length to
the amount to read ahead.
[BZ #23637]
* string/test-strstr.c (pr23637): New function.
(test_main): Add tests with longer needles.
* string/strcasestr.c (AVAILABLE): Fix readahead distance.
* string/strstr.c (AVAILABLE): Likewise.
(cherry picked from commit 83a552b0bb9fc2a5e80a0ab3723c0a80ce1db9f2)
---
ChangeLog | 8 ++++++++
string/strcasestr.c | 5 +++--
string/strstr.c | 5 +++--
string/test-strstr.c | 30 ++++++++++++++++++++++++++++++
4 files changed, 44 insertions(+), 4 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index bda963483f..a111f0131b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2018-09-19 Wilco Dijkstra <wdijkstr@arm.com>
+
+ [BZ #23637]
+ * string/test-strstr.c (pr23637): New function.
+ (test_main): Add tests with longer needles.
+ * string/strcasestr.c (AVAILABLE): Fix readahead distance.
+ * string/strstr.c (AVAILABLE): Likewise.
+
2018-09-19 Carlos O'Donell <carlos@redhat.com>
* stdlib/tst-setcontext9.c (f1): Rename to...
diff --git a/string/strcasestr.c b/string/strcasestr.c
index 5909fe3cdb..421764bd1b 100644
--- a/string/strcasestr.c
+++ b/string/strcasestr.c
@@ -37,8 +37,9 @@
/* Two-Way algorithm. */
#define RETURN_TYPE char *
#define AVAILABLE(h, h_l, j, n_l) \
- (((j) + (n_l) <= (h_l)) || ((h_l) += __strnlen ((void*)((h) + (h_l)), 512), \
- (j) + (n_l) <= (h_l)))
+ (((j) + (n_l) <= (h_l)) \
+ || ((h_l) += __strnlen ((void*)((h) + (h_l)), (n_l) + 512), \
+ (j) + (n_l) <= (h_l)))
#define CHECK_EOL (1)
#define RET0_IF_0(a) if (!a) goto ret0
#define CANON_ELEMENT(c) TOLOWER (c)
diff --git a/string/strstr.c b/string/strstr.c
index 265e9f310c..79ebcc7532 100644
--- a/string/strstr.c
+++ b/string/strstr.c
@@ -33,8 +33,9 @@
#define RETURN_TYPE char *
#define AVAILABLE(h, h_l, j, n_l) \
- (((j) + (n_l) <= (h_l)) || ((h_l) += __strnlen ((void*)((h) + (h_l)), 512), \
- (j) + (n_l) <= (h_l)))
+ (((j) + (n_l) <= (h_l)) \
+ || ((h_l) += __strnlen ((void*)((h) + (h_l)), (n_l) + 512), \
+ (j) + (n_l) <= (h_l)))
#define CHECK_EOL (1)
#define RET0_IF_0(a) if (!a) goto ret0
#define FASTSEARCH(S,C,N) (void*) strchr ((void*)(S), (C))
diff --git a/string/test-strstr.c b/string/test-strstr.c
index 8d99716ff3..5861b01b73 100644
--- a/string/test-strstr.c
+++ b/string/test-strstr.c
@@ -151,6 +151,32 @@ check2 (void)
}
}
+#define N 1024
+
+static void
+pr23637 (void)
+{
+ char *h = (char*) buf1;
+ char *n = (char*) buf2;
+
+ for (int i = 0; i < N; i++)
+ {
+ n[i] = 'x';
+ h[i] = ' ';
+ h[i + N] = 'x';
+ }
+
+ n[N] = '\0';
+ h[N * 2] = '\0';
+
+ /* Ensure we don't match at the first 'x'. */
+ h[0] = 'x';
+
+ char *exp_result = stupid_strstr (h, n);
+ FOR_EACH_IMPL (impl, 0)
+ check_result (impl, h, n, exp_result);
+}
+
static int
test_main (void)
{
@@ -158,6 +184,7 @@ test_main (void)
check1 ();
check2 ();
+ pr23637 ();
printf ("%23s", "");
FOR_EACH_IMPL (impl, 0)
@@ -202,6 +229,9 @@ test_main (void)
do_test (15, 9, hlen, klen, 1);
do_test (15, 15, hlen, klen, 0);
do_test (15, 15, hlen, klen, 1);
+
+ do_test (15, 15, hlen + klen * 4, klen * 4, 0);
+ do_test (15, 15, hlen + klen * 4, klen * 4, 1);
}
do_test (0, 0, page_size - 1, 16, 0);

115
srcpkgs/glibc/patches/glibc-upstream-18.patch Normal file
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@ -0,0 +1,115 @@
From 2339d6a55eb7a7e040ae888e906adc49eeb59eab Mon Sep 17 00:00:00 2001
From: "H.J. Lu" <hjl.tools@gmail.com>
Date: Wed, 12 Sep 2018 08:40:59 -0700
Subject: [PATCH 18] i386: Use ENTRY and END in start.S [BZ #23606]
Wrapping the _start function with ENTRY and END to insert ENDBR32 at
function entry when CET is enabled. Since _start now includes CFI,
without "cfi_undefined (eip)", unwinder may not terminate at _start
and we will get
Program received signal SIGSEGV, Segmentation fault.
0xf7dc661e in ?? () from /lib/libgcc_s.so.1
Missing separate debuginfos, use: dnf debuginfo-install libgcc-8.2.1-3.0.fc28.i686
(gdb) bt
#0 0xf7dc661e in ?? () from /lib/libgcc_s.so.1
#1 0xf7dc7c18 in _Unwind_Backtrace () from /lib/libgcc_s.so.1
#2 0xf7f0d809 in __GI___backtrace (array=array@entry=0xffffc7d0,
size=size@entry=20) at ../sysdeps/i386/backtrace.c:127
#3 0x08049254 in compare (p1=p1@entry=0xffffcad0, p2=p2@entry=0xffffcad4)
at backtrace-tst.c:12
#4 0xf7e2a28c in msort_with_tmp (p=p@entry=0xffffca5c, b=b@entry=0xffffcad0,
n=n@entry=2) at msort.c:65
#5 0xf7e29f64 in msort_with_tmp (n=2, b=0xffffcad0, p=0xffffca5c)
at msort.c:53
#6 msort_with_tmp (p=p@entry=0xffffca5c, b=b@entry=0xffffcad0, n=n@entry=5)
at msort.c:53
#7 0xf7e29f64 in msort_with_tmp (n=5, b=0xffffcad0, p=0xffffca5c)
at msort.c:53
#8 msort_with_tmp (p=p@entry=0xffffca5c, b=b@entry=0xffffcad0, n=n@entry=10)
at msort.c:53
#9 0xf7e29f64 in msort_with_tmp (n=10, b=0xffffcad0, p=0xffffca5c)
at msort.c:53
#10 msort_with_tmp (p=p@entry=0xffffca5c, b=b@entry=0xffffcad0, n=n@entry=20)
at msort.c:53
#11 0xf7e2a5b6 in msort_with_tmp (n=20, b=0xffffcad0, p=0xffffca5c)
at msort.c:297
#12 __GI___qsort_r (b=b@entry=0xffffcad0, n=n@entry=20, s=s@entry=4,
cmp=cmp@entry=0x8049230 <compare>, arg=arg@entry=0x0) at msort.c:297
#13 0xf7e2a84d in __GI_qsort (b=b@entry=0xffffcad0, n=n@entry=20, s=s@entry=4,
cmp=cmp@entry=0x8049230 <compare>) at msort.c:308
#14 0x080490f6 in main (argc=2, argv=0xffffcbd4) at backtrace-tst.c:39
FAIL: debug/backtrace-tst
[BZ #23606]
* sysdeps/i386/start.S: Include <sysdep.h>
(_start): Use ENTRY/END to insert ENDBR32 at entry when CET is
enabled. Add cfi_undefined (eip).
Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
(cherry picked from commit 5a274db4ea363d6b0b92933f085a92daaf1be2f2)
---
ChangeLog | 8 ++++++++
NEWS | 1 +
sysdeps/i386/start.S | 10 ++++++----
3 files changed, 15 insertions(+), 4 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index a111f0131b..84503e3a0c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2018-09-21 H.J. Lu <hongjiu.lu@intel.com>
+ Xuepeng Guo <xuepeng.guo@intel.com>
+
+ [BZ #23606]
+ * sysdeps/i386/start.S: Include <sysdep.h>
+ (_start): Use ENTRY/END to insert ENDBR32 at entry when CET is
+ enabled. Add cfi_undefined (eip).
+
2018-09-19 Wilco Dijkstra <wdijkstr@arm.com>
[BZ #23637]
diff --git a/NEWS b/NEWS
index 502e0c19f5..d1f1dd4b22 100644
--- a/NEWS
+++ b/NEWS
@@ -13,6 +13,7 @@ The following bugs are resolved with this release:
[23521] nss_files aliases database file stream leak
[23538] pthread_cond_broadcast: Fix waiters-after-spinning case
[23578] regex: Fix memory overread in re_compile_pattern
+ [23606] Missing ENDBR32 in sysdeps/i386/start.S
[23679] gethostid: Missing NULL check for gethostbyname_r result
diff --git a/sysdeps/i386/start.S b/sysdeps/i386/start.S
index 91035fa83f..e35e9bd31b 100644
--- a/sysdeps/i386/start.S
+++ b/sysdeps/i386/start.S
@@ -52,10 +52,11 @@
NULL
*/
- .text
- .globl _start
- .type _start,@function
-_start:
+#include <sysdep.h>
+
+ENTRY (_start)
+ /* Clearing frame pointer is insufficient, use CFI. */
+ cfi_undefined (eip)
/* Clear the frame pointer. The ABI suggests this be done, to mark
the outermost frame obviously. */
xorl %ebp, %ebp
@@ -131,6 +132,7 @@ _start:
1: movl (%esp), %ebx
ret
#endif
+END (_start)
/* To fulfill the System V/i386 ABI we need this symbol. Yuck, it's so
meaningless since we don't support machines < 80386. */

65
srcpkgs/glibc/patches/glibc-upstream-19.patch Normal file
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@ -0,0 +1,65 @@
From 3a67c72c1512f778304a5644dea2fcf5bdece274 Mon Sep 17 00:00:00 2001
From: Andreas Schwab <schwab@suse.de>
Date: Thu, 27 Sep 2018 12:37:06 +0200
Subject: [PATCH 19] Fix stack overflow in tst-setcontext9 (bug 23717)
The function f1a, executed on a stack of size 32k, allocates an object of
size 32k on the stack. Make the stack variables static to reduce
excessive stack usage.
(cherry picked from commit f841c97e515a1673485a2b12b3c280073d737890)
---
ChangeLog | 6 ++++++
NEWS | 1 +
stdlib/tst-setcontext9.c | 4 ++--
3 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index 84503e3a0c..4fbb9e2ad8 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2018-09-27 Andreas Schwab <schwab@suse.de>
+
+ [BZ #23717]
+ * stdlib/tst-setcontext9.c (f1a): Make st2 static.
+ (do_test): Make st1 static.
+
2018-09-21 H.J. Lu <hongjiu.lu@intel.com>
Xuepeng Guo <xuepeng.guo@intel.com>
diff --git a/NEWS b/NEWS
index d1f1dd4b22..bc568bcec0 100644
--- a/NEWS
+++ b/NEWS
@@ -15,6 +15,7 @@ The following bugs are resolved with this release:
[23578] regex: Fix memory overread in re_compile_pattern
[23606] Missing ENDBR32 in sysdeps/i386/start.S
[23679] gethostid: Missing NULL check for gethostbyname_r result
+ [23717] Fix stack overflow in stdlib/tst-setcontext9
Version 2.28
diff --git a/stdlib/tst-setcontext9.c b/stdlib/tst-setcontext9.c
index db8355766c..009928235d 100644
--- a/stdlib/tst-setcontext9.c
+++ b/stdlib/tst-setcontext9.c
@@ -58,7 +58,7 @@ f1b (void)
static void
f1a (void)
{
- char st2[32768];
+ static char st2[32768];
puts ("start f1a");
if (getcontext (&ctx[2]) != 0)
{
@@ -93,7 +93,7 @@ f1a (void)
static int
do_test (void)
{
- char st1[32768];
+ static char st1[32768];
puts ("making contexts");
if (getcontext (&ctx[0]) != 0)
{

239
srcpkgs/glibc/patches/glibc-upstream-20.patch Normal file
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@ -0,0 +1,239 @@
From 044c96f0d5595aeb0bb4e79355081c5a7f4faca5 Mon Sep 17 00:00:00 2001
From: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Wed, 29 Aug 2018 16:36:44 -0300
Subject: [PATCH 20] Fix misreported errno on preadv2/pwritev2 (BZ#23579)
The fallback code of Linux wrapper for preadv2/pwritev2 executes
regardless of the errno code for preadv2, instead of the case where
the syscall is not supported.
This fixes it by calling the fallback code iff errno is ENOSYS. The
patch also adds tests for both invalid file descriptor and invalid
iov_len and vector count.
The only discrepancy between preadv2 and fallback code regarding
error reporting is when an invalid flags are used. The fallback code
bails out earlier with ENOTSUP instead of EINVAL/EBADF when the syscall
is used.
Checked on x86_64-linux-gnu on a 4.4.0 and 4.15.0 kernel.
[BZ #23579]
* misc/tst-preadvwritev2-common.c (do_test_with_invalid_fd): New
test.
* misc/tst-preadvwritev2.c, misc/tst-preadvwritev64v2.c (do_test):
Call do_test_with_invalid_fd.
* sysdeps/unix/sysv/linux/preadv2.c (preadv2): Use fallback code iff
errno is ENOSYS.
* sysdeps/unix/sysv/linux/preadv64v2.c (preadv64v2): Likewise.
* sysdeps/unix/sysv/linux/pwritev2.c (pwritev2): Likewise.
* sysdeps/unix/sysv/linux/pwritev64v2.c (pwritev64v2): Likewise.
(cherry picked from commit 7a16bdbb9ff4122af0a28dc20996c95352011fdd)
---
ChangeLog | 14 ++++++
NEWS | 1 +
misc/tst-preadvwritev2-common.c | 65 +++++++++++++++++++++++++--
misc/tst-preadvwritev2.c | 2 +
misc/tst-preadvwritev64v2.c | 2 +
sysdeps/unix/sysv/linux/preadv2.c | 2 +-
sysdeps/unix/sysv/linux/preadv64v2.c | 2 +-
sysdeps/unix/sysv/linux/pwritev2.c | 2 +-
sysdeps/unix/sysv/linux/pwritev64v2.c | 2 +-
9 files changed, 85 insertions(+), 7 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index 4fbb9e2ad8..11a9b8d98e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,17 @@
+2018-09-28 Adhemerval Zanella <adhemerval.zanella@linaro.org>
+
+ [BZ #23579]
+ * misc/tst-preadvwritev2-common.c (do_test_with_invalid_fd,
+ do_test_with_invalid_iov): New tests.
+ * misc/tst-preadvwritev2.c, misc/tst-preadvwritev64v2.c (do_test):
+ Call do_test_with_invalid_fd and do_test_with_invalid_iov.
+ * sysdeps/unix/sysv/linux/preadv2.c (preadv2): Use fallback code iff
+ errno is ENOSYS.
+ * sysdeps/unix/sysv/linux/preadv64v2.c (preadv64v2): Likewise.
+ * sysdeps/unix/sysv/linux/pwritev2.c (pwritev2): Likewise.
+ * sysdeps/unix/sysv/linux/pwritev64v2.c (pwritev64v2): Likewise.
+ * NEWS: Add bug fixed.
+
2018-09-27 Andreas Schwab <schwab@suse.de>
[BZ #23717]
diff --git a/NEWS b/NEWS
index bc568bcec0..fd14941128 100644
--- a/NEWS
+++ b/NEWS
@@ -13,6 +13,7 @@ The following bugs are resolved with this release:
[23521] nss_files aliases database file stream leak
[23538] pthread_cond_broadcast: Fix waiters-after-spinning case
[23578] regex: Fix memory overread in re_compile_pattern
+ [23579] libc: Errors misreported in preadv2
[23606] Missing ENDBR32 in sysdeps/i386/start.S
[23679] gethostid: Missing NULL check for gethostbyname_r result
[23717] Fix stack overflow in stdlib/tst-setcontext9
diff --git a/misc/tst-preadvwritev2-common.c b/misc/tst-preadvwritev2-common.c
index f889a21544..50b9da3fea 100644
--- a/misc/tst-preadvwritev2-common.c
+++ b/misc/tst-preadvwritev2-common.c
@@ -19,9 +19,6 @@
#include <limits.h>
#include <support/check.h>
-static void
-do_test_with_invalid_flags (void)
-{
#ifndef RWF_HIPRI
# define RWF_HIPRI 0
#endif
@@ -39,6 +36,68 @@ do_test_with_invalid_flags (void)
#endif
#define RWF_SUPPORTED (RWF_HIPRI | RWF_DSYNC | RWF_SYNC | RWF_NOWAIT \
| RWF_APPEND)
+
+static void
+do_test_with_invalid_fd (void)
+{
+ char buf[256];
+ struct iovec iov = { buf, sizeof buf };
+
+ /* Check with flag being 0 to use the fallback code which calls pwritev
+ or writev. */
+ TEST_VERIFY (preadv2 (-1, &iov, 1, -1, 0) == -1);
+ TEST_COMPARE (errno, EBADF);
+ TEST_VERIFY (pwritev2 (-1, &iov, 1, -1, 0) == -1);
+ TEST_COMPARE (errno, EBADF);
+
+ /* Same tests as before but with flags being different than 0. Since
+ there is no emulation for any flag value, fallback code returns
+ ENOTSUP. This is different running on a kernel with preadv2/pwritev2
+ support, where EBADF is returned). */
+ TEST_VERIFY (preadv2 (-1, &iov, 1, 0, RWF_HIPRI) == -1);
+ TEST_VERIFY (errno == EBADF || errno == ENOTSUP);
+ TEST_VERIFY (pwritev2 (-1, &iov, 1, 0, RWF_HIPRI) == -1);
+ TEST_VERIFY (errno == EBADF || errno == ENOTSUP);
+}
+
+static void
+do_test_with_invalid_iov (void)
+{
+ {
+ char buf[256];
+ struct iovec iov;
+
+ iov.iov_base = buf;
+ iov.iov_len = (size_t)SSIZE_MAX + 1;
+
+ TEST_VERIFY (preadv2 (temp_fd, &iov, 1, 0, 0) == -1);
+ TEST_COMPARE (errno, EINVAL);
+ TEST_VERIFY (pwritev2 (temp_fd, &iov, 1, 0, 0) == -1);
+ TEST_COMPARE (errno, EINVAL);
+
+ /* Same as for invalid file descriptor tests, emulation fallback
+ first checks for flag value and return ENOTSUP. */
+ TEST_VERIFY (preadv2 (temp_fd, &iov, 1, 0, RWF_HIPRI) == -1);
+ TEST_VERIFY (errno == EINVAL || errno == ENOTSUP);
+ TEST_VERIFY (pwritev2 (temp_fd, &iov, 1, 0, RWF_HIPRI) == -1);
+ TEST_VERIFY (errno == EINVAL || errno == ENOTSUP);
+ }
+
+ {
+ /* An invalid iovec buffer should trigger an invalid memory access
+ or an error (Linux for instance returns EFAULT). */
+ struct iovec iov[IOV_MAX+1] = { 0 };
+
+ TEST_VERIFY (preadv2 (temp_fd, iov, IOV_MAX + 1, 0, RWF_HIPRI) == -1);
+ TEST_VERIFY (errno == EINVAL || errno == ENOTSUP);
+ TEST_VERIFY (pwritev2 (temp_fd, iov, IOV_MAX + 1, 0, RWF_HIPRI) == -1);
+ TEST_VERIFY (errno == EINVAL || errno == ENOTSUP);
+ }
+}
+
+static void
+do_test_with_invalid_flags (void)
+{
/* Set the next bit from the mask of all supported flags. */
int invalid_flag = RWF_SUPPORTED != 0 ? __builtin_clz (RWF_SUPPORTED) : 2;
invalid_flag = 0x1 << ((sizeof (int) * CHAR_BIT) - invalid_flag);
diff --git a/misc/tst-preadvwritev2.c b/misc/tst-preadvwritev2.c
index be22802dbe..cb58cbe41e 100644
--- a/misc/tst-preadvwritev2.c
+++ b/misc/tst-preadvwritev2.c
@@ -30,6 +30,8 @@ do_test (void)
{
do_test_with_invalid_flags ();
do_test_without_offset ();
+ do_test_with_invalid_fd ();
+ do_test_with_invalid_iov ();
return do_test_with_offset (0);
}
diff --git a/misc/tst-preadvwritev64v2.c b/misc/tst-preadvwritev64v2.c
index 8d3cc32b28..6a9de54c78 100644
--- a/misc/tst-preadvwritev64v2.c
+++ b/misc/tst-preadvwritev64v2.c
@@ -32,6 +32,8 @@ do_test (void)
{
do_test_with_invalid_flags ();
do_test_without_offset ();
+ do_test_with_invalid_fd ();
+ do_test_with_invalid_iov ();
return do_test_with_offset (0);
}
diff --git a/sysdeps/unix/sysv/linux/preadv2.c b/sysdeps/unix/sysv/linux/preadv2.c
index c8bf0764ef..bb08cbc5fd 100644
--- a/sysdeps/unix/sysv/linux/preadv2.c
+++ b/sysdeps/unix/sysv/linux/preadv2.c
@@ -32,7 +32,7 @@ preadv2 (int fd, const struct iovec *vector, int count, off_t offset,
# ifdef __NR_preadv2
ssize_t result = SYSCALL_CANCEL (preadv2, fd, vector, count,
LO_HI_LONG (offset), flags);
- if (result >= 0)
+ if (result >= 0 || errno != ENOSYS)
return result;
# endif
/* Trying to emulate the preadv2 syscall flags is troublesome:
diff --git a/sysdeps/unix/sysv/linux/preadv64v2.c b/sysdeps/unix/sysv/linux/preadv64v2.c
index d7400a0252..b72a047347 100644
--- a/sysdeps/unix/sysv/linux/preadv64v2.c
+++ b/sysdeps/unix/sysv/linux/preadv64v2.c
@@ -30,7 +30,7 @@ preadv64v2 (int fd, const struct iovec *vector, int count, off64_t offset,
#ifdef __NR_preadv64v2
ssize_t result = SYSCALL_CANCEL (preadv64v2, fd, vector, count,
LO_HI_LONG (offset), flags);
- if (result >= 0)
+ if (result >= 0 || errno != ENOSYS)
return result;
#endif
/* Trying to emulate the preadv2 syscall flags is troublesome:
diff --git a/sysdeps/unix/sysv/linux/pwritev2.c b/sysdeps/unix/sysv/linux/pwritev2.c
index 29c2264c8f..26333ebd43 100644
--- a/sysdeps/unix/sysv/linux/pwritev2.c
+++ b/sysdeps/unix/sysv/linux/pwritev2.c
@@ -28,7 +28,7 @@ pwritev2 (int fd, const struct iovec *vector, int count, off_t offset,
# ifdef __NR_pwritev2
ssize_t result = SYSCALL_CANCEL (pwritev2, fd, vector, count,
LO_HI_LONG (offset), flags);
- if (result >= 0)
+ if (result >= 0 || errno != ENOSYS)
return result;
# endif
/* Trying to emulate the pwritev2 syscall flags is troublesome:
diff --git a/sysdeps/unix/sysv/linux/pwritev64v2.c b/sysdeps/unix/sysv/linux/pwritev64v2.c
index 42da321149..17ea905aa6 100644
--- a/sysdeps/unix/sysv/linux/pwritev64v2.c
+++ b/sysdeps/unix/sysv/linux/pwritev64v2.c
@@ -30,7 +30,7 @@ pwritev64v2 (int fd, const struct iovec *vector, int count, off64_t offset,
#ifdef __NR_pwritev64v2
ssize_t result = SYSCALL_CANCEL (pwritev64v2, fd, vector, count,
LO_HI_LONG (offset), flags);
- if (result >= 0)
+ if (result >= 0 || errno != ENOSYS)
return result;
#endif
/* Trying to emulate the pwritev2 syscall flags is troublesome:

2
srcpkgs/glibc/template
View File

@ -1,7 +1,7 @@
# Template file for 'glibc'
pkgname=glibc
version=2.28
revision=1
revision=2
bootstrap=yes
short_desc="The GNU C library"
maintainer="Juan RP <xtraeme@voidlinux.eu>"