Accepting request 832940 from home:Andreas_Schwab:Factory
- Keep nsswitch.conf in /etc for SLES15 - syslog-locking.patch: Correct locking and cancellation cleanup in syslog functions (bsc#1172085, BZ #26100) - ifunc-fma4.patch: x86-64: Fix FMA4 detection in ifunc (BZ #26534) OBS-URL: https://build.opensuse.org/request/show/832940 OBS-URL: https://build.opensuse.org/package/show/Base:System/glibc?expand=0&rev=568
This commit is contained in:
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fcfeca27fe
commit
07fe597177
@ -1,3 +1,11 @@
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-------------------------------------------------------------------
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Tue Sep 8 08:00:33 UTC 2020 - Andreas Schwab <schwab@suse.de>
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- Keep nsswitch.conf in /etc for SLES15
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- syslog-locking.patch: Correct locking and cancellation cleanup in syslog
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functions (bsc#1172085, BZ #26100)
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- ifunc-fma4.patch: x86-64: Fix FMA4 detection in ifunc (BZ #26534)
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-------------------------------------------------------------------
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Thu Aug 6 08:08:04 UTC 2020 - Andreas Schwab <schwab@suse.de>
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15
glibc.spec
15
glibc.spec
@ -259,6 +259,10 @@ Patch306: glibc-fix-double-loopback.diff
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###
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# Patches from upstream
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###
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# PATCH-FIX-UPSTREAM Correct locking and cancellation cleanup in syslog functions (BZ #26100)
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Patch1000: syslog-locking.patch
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# PATCH-FIX-UPSTREAM x86-64: Fix FMA4 detection in ifunc (BZ #26534)
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Patch1001: ifunc-fma4.patch
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###
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# Patches awaiting upstream approval
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@ -471,6 +475,9 @@ makedb: A program to create a database for nss
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%patch304 -p1
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%patch306 -p1
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%patch1000 -p1
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%patch1001 -p1
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%patch2000 -p1
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%patch2001 -p1
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%patch2002 -p1
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@ -832,7 +839,11 @@ rm -rf %{buildroot}%{_datadir}/locale/*/
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# Miscelanna:
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install -m 644 %{SOURCE7} %{buildroot}/etc
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%if %suse_version > 1500
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install -D -m 644 %{SOURCE5} %{buildroot}%{_prefix}/etc/nsswitch.conf
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%else
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install -m 644 %{SOURCE5} %{buildroot}/etc
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%endif
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mkdir -p %{buildroot}/etc/default
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install -m 644 nis/nss %{buildroot}/etc/default/
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@ -1080,8 +1091,12 @@ exit 0
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%config /etc/ld.so.conf
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%attr(0644,root,root) %verify(not md5 size mtime) %ghost %config(missingok,noreplace) /etc/ld.so.cache
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%config(noreplace) /etc/rpc
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%if %suse_version > 1500
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%attr(0644,root,root) %verify(not md5 size mtime) %ghost %config(missingok,noreplace) /etc/nsswitch.conf
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%{_prefix}/etc/nsswitch.conf
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%else
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%verify(not md5 size mtime) %config(noreplace) /etc/nsswitch.conf
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%endif
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%attr(0644,root,root) %verify(not md5 size mtime) %ghost %config(missingok,noreplace) /etc/gai.conf
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%doc posix/gai.conf
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%config(noreplace) /etc/default/nss
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28
ifunc-fma4.patch
Normal file
28
ifunc-fma4.patch
Normal file
@ -0,0 +1,28 @@
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From 23af890b3f04e80da783ba64e6b6d94822e01d54 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Ond=C5=99ej=20Ho=C5=A1ek?= <ondra.hosek@gmail.com>
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Date: Wed, 26 Aug 2020 04:26:50 +0200
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Subject: [PATCH] x86-64: Fix FMA4 detection in ifunc [BZ #26534]
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A typo in commit 107e6a3c2212ba7a3a4ec7cae8d82d73f7c95d0b causes the
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FMA4 code path to be taken on systems that support FMA, even if they do
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not support FMA4. Fix this to detect FMA4.
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---
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sysdeps/x86_64/fpu/multiarch/ifunc-fma4.h | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/sysdeps/x86_64/fpu/multiarch/ifunc-fma4.h b/sysdeps/x86_64/fpu/multiarch/ifunc-fma4.h
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index 7659758972..e5fd5ac9cb 100644
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--- a/sysdeps/x86_64/fpu/multiarch/ifunc-fma4.h
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+++ b/sysdeps/x86_64/fpu/multiarch/ifunc-fma4.h
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@@ -32,7 +32,7 @@ IFUNC_SELECTOR (void)
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&& CPU_FEATURE_USABLE_P (cpu_features, AVX2))
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return OPTIMIZE (fma);
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- if (CPU_FEATURE_USABLE_P (cpu_features, FMA))
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+ if (CPU_FEATURE_USABLE_P (cpu_features, FMA4))
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return OPTIMIZE (fma4);
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return OPTIMIZE (sse2);
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--
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2.28.0
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117
syslog-locking.patch
Normal file
117
syslog-locking.patch
Normal file
@ -0,0 +1,117 @@
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From 518db378cedc755f0ae311a1bc0487a4264f4bf0 Mon Sep 17 00:00:00 2001
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From: Andreas Schwab <schwab@suse.de>
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Date: Tue, 23 Jun 2020 12:55:49 +0200
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Subject: [PATCH] Correct locking and cancellation cleanup in syslog functions
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(bug 26100)
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Properly serialize the access to the global state shared between the
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syslog functions, to avoid races in multithreaded processes. Protect a
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local allocation in the __vsyslog_internal function from leaking during
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cancellation.
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---
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misc/syslog.c | 44 ++++++++++++++++++++++++++++----------------
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1 file changed, 28 insertions(+), 16 deletions(-)
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Index: glibc-2.32/misc/syslog.c
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===================================================================
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--- glibc-2.32.orig/misc/syslog.c
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+++ glibc-2.32/misc/syslog.c
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@@ -91,14 +91,20 @@ struct cleanup_arg
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static void
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cancel_handler (void *ptr)
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{
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-#ifndef NO_SIGPIPE
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/* Restore the old signal handler. */
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struct cleanup_arg *clarg = (struct cleanup_arg *) ptr;
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- if (clarg != NULL && clarg->oldaction != NULL)
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- __sigaction (SIGPIPE, clarg->oldaction, NULL);
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+ if (clarg != NULL)
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+ {
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+#ifndef NO_SIGPIPE
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+ if (clarg->oldaction != NULL)
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+ __sigaction (SIGPIPE, clarg->oldaction, NULL);
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#endif
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+ /* Free the memstream buffer, */
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+ free (clarg->buf);
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+ }
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+
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/* Free the lock. */
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__libc_lock_unlock (syslog_lock);
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}
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@@ -169,9 +175,17 @@ __vsyslog_internal(int pri, const char *
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pri &= LOG_PRIMASK|LOG_FACMASK;
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}
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+ /* Prepare for multiple users. We have to take care: most
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+ syscalls we are using are cancellation points. */
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+ struct cleanup_arg clarg;
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+ clarg.buf = NULL;
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+ clarg.oldaction = NULL;
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+ __libc_cleanup_push (cancel_handler, &clarg);
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+ __libc_lock_lock (syslog_lock);
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+
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/* Check priority against setlogmask values. */
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if ((LOG_MASK (LOG_PRI (pri)) & LogMask) == 0)
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- return;
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+ goto out;
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/* Set default facility if none specified. */
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if ((pri & LOG_FACMASK) == 0)
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@@ -235,6 +249,9 @@ __vsyslog_internal(int pri, const char *
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/* Close the memory stream; this will finalize the data
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into a malloc'd buffer in BUF. */
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fclose (f);
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+
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+ /* Tell the cancellation handler to free this buffer. */
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+ clarg.buf = buf;
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}
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/* Output to stderr if requested. */
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@@ -252,22 +269,10 @@ __vsyslog_internal(int pri, const char *
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v->iov_len = 1;
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}
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- __libc_cleanup_push (free, buf == failbuf ? NULL : buf);
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-
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/* writev is a cancellation point. */
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(void)__writev(STDERR_FILENO, iov, v - iov + 1);
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-
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- __libc_cleanup_pop (0);
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}
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- /* Prepare for multiple users. We have to take care: open and
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- write are cancellation points. */
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- struct cleanup_arg clarg;
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- clarg.buf = buf;
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- clarg.oldaction = NULL;
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- __libc_cleanup_push (cancel_handler, &clarg);
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- __libc_lock_lock (syslog_lock);
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-
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#ifndef NO_SIGPIPE
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/* Prepare for a broken connection. */
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memset (&action, 0, sizeof (action));
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@@ -320,6 +325,7 @@ __vsyslog_internal(int pri, const char *
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__sigaction (SIGPIPE, &oldaction, (struct sigaction *) NULL);
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#endif
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+ out:
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/* End of critical section. */
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__libc_cleanup_pop (0);
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__libc_lock_unlock (syslog_lock);
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@@ -430,8 +436,14 @@ setlogmask (int pmask)
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{
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int omask;
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+ /* Protect against multiple users. */
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+ __libc_lock_lock (syslog_lock);
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+
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omask = LogMask;
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if (pmask != 0)
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LogMask = pmask;
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+
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+ __libc_lock_unlock (syslog_lock);
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+
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return (omask);
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}
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