linux-sg2042/arch/x86/ia32
Jan Beulich 24e35800cd x86: Don't leak 64-bit kernel register values to 32-bit processes
While 32-bit processes can't directly access R8...R15, they can
gain access to these registers by temporarily switching themselves
into 64-bit mode.

Therefore, registers not preserved anyway by called C functions
(i.e. R8...R11) must be cleared prior to returning to user mode.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Cc: <stable@kernel.org>
LKML-Reference: <4AC34D73020000780001744A@vpn.id2.novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-10-01 11:24:26 +02:00
..
Makefile x86: compat_binfmt_elf 2008-01-30 13:31:55 +01:00
audit.c x86: coding style fixes in arch/x86/ia32/audit.c 2008-01-30 13:32:54 +01:00
ia32_aout.c CRED: Make execve() take advantage of copy-on-write credentials 2008-11-14 10:39:24 +11:00
ia32_signal.c x86: ia32_signal: introduce {get|set}_user_seg() 2009-02-22 17:54:47 +01:00
ia32entry.S x86: Don't leak 64-bit kernel register values to 32-bit processes 2009-10-01 11:24:26 +02:00
ipc32.c x86: introducing asm/sys_ia32.h 2008-12-29 13:18:40 +01:00
sys_ia32.c x86, 32-bit: Use generic sys_pipe() 2009-08-08 18:20:52 +02:00