powerpc: Fix string instr. emulation for 32-bit processes on ppc64

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String instruction emulation would erroneously result in a segfault if
the upper bits of the EA are set and is so high that it fails access
check.  Truncate the EA to 32 bits if the process is 32-bit.

Signed-off-by: James Yang <James.Yang@freescale.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

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James Yang 2013-06-25 11:41:05 -05:00 • committed by Benjamin Herrenschmidt

parent e1b85c17bf

commit 80aa0fb494

1 changed files with 4 additions and 0 deletions

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arch/powerpc/kernel/traps.c

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