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| author |   Helge Deller <deller@gmx.de> | 2016-04-08 18:18:48 +0200 |
|---|---|---|
| committer | Helge Deller <deller@gmx.de> | 2016-04-08 22:14:04 +0200 |
| commit | ef72f3110d8b19f4c098a0bff7ed7d11945e70c6 (patch) | |
| tree | 42b3f7f407b9d875baaf36045f59fc0965d675ee /arch/parisc/lib/fixup.S | |
| parent | parisc: Avoid function pointers for kernel exception routines (diff) | |
| download | linux-dev-ef72f3110d8b19f4c098a0bff7ed7d11945e70c6.tar.xz linux-dev-ef72f3110d8b19f4c098a0bff7ed7d11945e70c6.zip | |
parisc: Fix kernel crash with reversed copy_from_user()
The kernel module testcase (lib/test_user_copy.c) exhibited a kernel
crash on parisc if the parameters for copy_from_user were reversed
("illegal reversed copy_to_user" testcase).
Fix this potential crash by checking the fault handler if the faulting
address is in the exception table.
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org
Cc: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'arch/parisc/lib/fixup.S')
0 files changed, 0 insertions, 0 deletions