signal: Fix use of missing sa_restorer field (build regression introduced by fix for CVE-2013-0914)
svn path=/dists/trunk/linux/; revision=19927
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@ -2,6 +2,8 @@ linux (3.8.4-1~experimental.1) UNRELEASED; urgency=low
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* New upstream stable update:
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http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.4
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* signal: Fix use of missing sa_restorer field (build regression
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introduced by fix for CVE-2013-0914)
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-- Ben Hutchings <ben@decadent.org.uk> Wed, 20 Mar 2013 23:32:20 +0000
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149
debian/patches/bugfix/all/signal-fix-use-of-missing-sa_restorer-field.patch
vendored
Normal file
149
debian/patches/bugfix/all/signal-fix-use-of-missing-sa_restorer-field.patch
vendored
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@ -0,0 +1,149 @@
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From: Ben Hutchings <ben@decadent.org.uk>
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Date: Sun, 25 Nov 2012 22:24:19 -0500
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Subject: signal: Fix use of missing sa_restorer field
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flush_signal_handlers() needs to know whether sigaction::sa_restorer
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is defined, not whether SA_RESTORER is defined. Define the
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__ARCH_HAS_SA_RESTORER macro to indicate this.
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Vaguely based on upstream commit 574c4866e33d 'consolidate kernel-side
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struct sigaction declarations'.
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Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
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Cc: Al Viro <viro@zeniv.linux.org.uk>
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---
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--- a/arch/arm/include/asm/signal.h
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+++ b/arch/arm/include/asm/signal.h
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@@ -29,6 +29,7 @@ struct sigaction {
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__sigrestore_t sa_restorer;
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sigset_t sa_mask; /* mask last for extensibility */
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};
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+#define __ARCH_HAS_SA_RESTORER
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struct k_sigaction {
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struct sigaction sa;
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--- a/arch/avr32/include/asm/signal.h
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+++ b/arch/avr32/include/asm/signal.h
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@@ -29,6 +29,7 @@ struct sigaction {
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__sigrestore_t sa_restorer;
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sigset_t sa_mask; /* mask last for extensibility */
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};
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+#define __ARCH_HAS_SA_RESTORER
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struct k_sigaction {
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struct sigaction sa;
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--- a/arch/cris/include/asm/signal.h
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+++ b/arch/cris/include/asm/signal.h
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@@ -29,6 +29,7 @@ struct sigaction {
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void (*sa_restorer)(void);
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sigset_t sa_mask; /* mask last for extensibility */
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};
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+#define __ARCH_HAS_SA_RESTORER
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struct k_sigaction {
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struct sigaction sa;
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--- a/arch/h8300/include/asm/signal.h
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+++ b/arch/h8300/include/asm/signal.h
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@@ -29,6 +29,7 @@ struct sigaction {
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void (*sa_restorer)(void);
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sigset_t sa_mask; /* mask last for extensibility */
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};
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+#define __ARCH_HAS_SA_RESTORER
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struct k_sigaction {
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struct sigaction sa;
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--- a/arch/m32r/include/asm/signal.h
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+++ b/arch/m32r/include/asm/signal.h
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@@ -22,6 +22,7 @@ struct sigaction {
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__sigrestore_t sa_restorer;
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sigset_t sa_mask; /* mask last for extensibility */
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};
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+#define __ARCH_HAS_SA_RESTORER
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struct k_sigaction {
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struct sigaction sa;
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--- a/arch/m68k/include/asm/signal.h
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+++ b/arch/m68k/include/asm/signal.h
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@@ -29,6 +29,7 @@ struct sigaction {
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__sigrestore_t sa_restorer;
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sigset_t sa_mask; /* mask last for extensibility */
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};
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+#define __ARCH_HAS_SA_RESTORER
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struct k_sigaction {
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struct sigaction sa;
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--- a/arch/mn10300/include/asm/signal.h
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+++ b/arch/mn10300/include/asm/signal.h
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@@ -39,6 +39,7 @@ struct sigaction {
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__sigrestore_t sa_restorer;
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sigset_t sa_mask; /* mask last for extensibility */
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};
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+#define __ARCH_HAS_SA_RESTORER
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struct k_sigaction {
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struct sigaction sa;
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--- a/arch/powerpc/include/asm/signal.h
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+++ b/arch/powerpc/include/asm/signal.h
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@@ -1,6 +1,7 @@
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#ifndef _ASM_POWERPC_SIGNAL_H
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#define _ASM_POWERPC_SIGNAL_H
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+#define __ARCH_HAS_SA_RESTORER
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#include <uapi/asm/signal.h>
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#endif /* _ASM_POWERPC_SIGNAL_H */
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--- a/arch/s390/include/asm/signal.h
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+++ b/arch/s390/include/asm/signal.h
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@@ -34,6 +34,7 @@ struct sigaction {
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void (*sa_restorer)(void);
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sigset_t sa_mask; /* mask last for extensibility */
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};
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+#define __ARCH_HAS_SA_RESTORER
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struct k_sigaction {
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struct sigaction sa;
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--- a/arch/sparc/include/asm/signal.h
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+++ b/arch/sparc/include/asm/signal.h
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@@ -26,5 +26,7 @@ struct k_sigaction {
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void __user *ka_restorer;
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};
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+#define __ARCH_HAS_SA_RESTORER
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+
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#endif /* !(__ASSEMBLY__) */
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#endif /* !(__SPARC_SIGNAL_H) */
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--- a/arch/x86/include/asm/signal.h
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+++ b/arch/x86/include/asm/signal.h
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@@ -31,6 +31,9 @@ typedef sigset_t compat_sigset_t;
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#include <uapi/asm/signal.h>
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#ifndef __ASSEMBLY__
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extern void do_notify_resume(struct pt_regs *, void *, __u32);
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+
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+#define __ARCH_HAS_SA_RESTORER
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+
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#ifdef __i386__
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struct old_sigaction {
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__sighandler_t sa_handler;
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--- a/arch/xtensa/include/asm/signal.h
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+++ b/arch/xtensa/include/asm/signal.h
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@@ -21,6 +21,7 @@ struct sigaction {
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void (*sa_restorer)(void);
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sigset_t sa_mask; /* mask last for extensibility */
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};
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+#define __ARCH_HAS_SA_RESTORER
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struct k_sigaction {
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struct sigaction sa;
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--- a/include/uapi/asm-generic/signal.h
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+++ b/include/uapi/asm-generic/signal.h
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@@ -93,6 +93,10 @@ typedef unsigned long old_sigset_t;
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#include <asm-generic/signal-defs.h>
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+#ifdef SA_RESTORER
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+#define __ARCH_HAS_SA_RESTORER
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+#endif
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+
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struct sigaction {
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__sighandler_t sa_handler;
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unsigned long sa_flags;
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@ -77,3 +77,5 @@ bugfix/x86/drm-i915-add-quirk-to-invert-brightness-on-packard-bell-ncl20.patch
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bugfix/all/mm-Try-harder-to-allocate-vmemmap-blocks.patch
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features/all/alx/alx-update-for-3.8.patch
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bugfix/mips/mips-add-dependencies-for-have_arch_transparent_hugepage.patch
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bugfix/all/signal-fix-use-of-missing-sa_restorer-field.patch
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bugfix/all/kernel-signal.c-use-__ARCH_HAS_SA_RESTORER-instead-o.patch
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