x86-32, smap: Add STAC/CLAC instructions to 32-bit kernel entry

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The changes to entry_32.S got missed in checkin:

63bcff2a x86, smap: Add STAC and CLAC instructions to control user space access

The resulting kernel was largely functional but SMAP protection could
have been bypassed.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Link: http://lkml.kernel.org/r/1348256595-29119-9-git-send-email-hpa@linux.intel.com

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This commit is contained in:

H. Peter Anvin 2012-09-21 13:58:10 -07:00

parent 5e88353d8b

commit e59d1b0a24

1 changed files with 26 additions and 0 deletions

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arch/x86/kernel/entry_32.S

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