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x86/entry/32: Add missing ASM_CLAC to general_protection entry

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commit 3d51507f29f2153a658df4a0674ec5b592b62085 upstream.

All exception entry points must have ASM_CLAC right at the
beginning. The general_protection entry is missing one.

Fixes: e59d1b0a24 ("x86-32, smap: Add STAC/CLAC instructions to 32-bit kernel entry")
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Reviewed-by: Alexandre Chartre <alexandre.chartre@oracle.com>
Reviewed-by: Andy Lutomirski <luto@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20200225220216.219537887@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Thomas Gleixner 2020-02-25 22:36:37 +01:00 • committed by Greg Kroah-Hartman
commit bd90b96e34
1 changed files with 1 additions and 0 deletions
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1
arch/x86/entry/entry_32.S
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@ -1647,6 +1647,7 @@ ENTRY(int3)
END(int3)
ENTRY(general_protection)
ASM_CLAC
pushl $do_general_protection
jmp common_exception
END(general_protection)