avr32: Fix oops on unaligned user access

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The unaligned address exception handler (and others) does not scan the
fixup tables before oopsing. This is bad because it means passing a
badly aligned pointer from user space might crash the kernel.

Fix this by scanning the fixup tables in _exception(). This should
resolve the issue for unaligned addresses as well as other less common
exceptions that might be happening during a userspace access. The page
fault handler already does fixup processing.

Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>

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Haavard Skinnemoen 2009-06-03 14:29:16 +02:00

parent fbe0b8d582

commit bb6e647051

1 changed files with 10 additions and 1 deletions

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arch/avr32/kernel/traps.c

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