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2c87e2cd0b
We can't safely directly access an compat_alloc_user_space() pointer with the siginfo copy functions. Bounce it through the stack. Noticed by Al Viro using sparse [ This was only added post 2.6.17, not in any released kernel ] Cc: Al Viro <viro@ftp.linux.org.uk> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>