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Message-Id: <20200416131342.428037434@linuxfoundation.org>
Date: Thu, 16 Apr 2020 15:23:37 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
Frederic Weisbecker <frederic@...nel.org>,
Alexandre Chartre <alexandre.chartre@...cle.com>,
Andy Lutomirski <luto@...nel.org>
Subject: [PATCH 5.6 128/254] x86/entry/32: Add missing ASM_CLAC to general_protection entry
From: Thomas Gleixner <tglx@...utronix.de>
commit 3d51507f29f2153a658df4a0674ec5b592b62085 upstream.
All exception entry points must have ASM_CLAC right at the
beginning. The general_protection entry is missing one.
Fixes: e59d1b0a2419 ("x86-32, smap: Add STAC/CLAC instructions to 32-bit kernel entry")
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Reviewed-by: Frederic Weisbecker <frederic@...nel.org>
Reviewed-by: Alexandre Chartre <alexandre.chartre@...cle.com>
Reviewed-by: Andy Lutomirski <luto@...nel.org>
Cc: stable@...r.kernel.org
Link: https://lkml.kernel.org/r/20200225220216.219537887@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
arch/x86/entry/entry_32.S | 1 +
1 file changed, 1 insertion(+)
--- a/arch/x86/entry/entry_32.S
+++ b/arch/x86/entry/entry_32.S
@@ -1694,6 +1694,7 @@ SYM_CODE_START(int3)
SYM_CODE_END(int3)
SYM_CODE_START(general_protection)
+ ASM_CLAC
pushl $do_general_protection
jmp common_exception
SYM_CODE_END(general_protection)
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