frv: fix clear_user()

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commit 3b8767a8f0 upstream.

It should check access_ok().  Otherwise a bunch of places turn into
trivially exploitable rootholes.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

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Al Viro 2016-08-18 20:54:02 -04:00 • committed by Ben Hutchings

parent 63937b3bf2

commit bfc7cbee2d

1 changed files with 9 additions and 3 deletions

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arch/frv/include/asm/uaccess.h

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