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189ce92b4c
Signed-off-by: Koen Kooi <koen@dominion.thruhere.net> Signed-off-by: Denys Dmytriyenko <denys@ti.com>
40 lines
1.4 KiB
Diff
40 lines
1.4 KiB
Diff
From 7f297eaca9b90a9be05ebe02c90efca3692136db Mon Sep 17 00:00:00 2001
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From: Chris Metcalf <cmetcalf@tilera.com>
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Date: Fri, 18 May 2012 13:33:24 -0400
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Subject: [PATCH 015/117] tilegx: enable SYSCALL_WRAPPERS support
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commit e6d9668e119af44ae5bcd5f1197174531458afe3 upstream.
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Some discussion with the glibc mailing lists revealed that this was
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necessary for 64-bit platforms with MIPS-like sign-extension rules
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for 32-bit values. The original symptom was that passing (uid_t)-1 to
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setreuid() was failing in programs linked -pthread because of the "setxid"
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mechanism for passing setxid-type function arguments to the syscall code.
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SYSCALL_WRAPPERS handles ensuring that all syscall arguments end up with
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proper sign-extension and is thus the appropriate fix for this problem.
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On other platforms (s390, powerpc, sparc64, and mips) this was fixed
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in 2.6.28.6. The general issue is tracked as CVE-2009-0029.
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Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
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---
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arch/tile/Kconfig | 1 +
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1 file changed, 1 insertion(+)
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diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
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index 7c9d2d4..6cb8319 100644
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--- a/arch/tile/Kconfig
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+++ b/arch/tile/Kconfig
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@@ -11,6 +11,7 @@ config TILE
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select GENERIC_IRQ_PROBE
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select GENERIC_PENDING_IRQ if SMP
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select GENERIC_IRQ_SHOW
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+ select HAVE_SYSCALL_WRAPPERS if TILEGX
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select SYS_HYPERVISOR
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select ARCH_HAVE_NMI_SAFE_CMPXCHG
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--
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1.7.9.5
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