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linux/security
Kees Cook 92e04f8a13 UPSTREAM: usercopy: remove page-spanning test for now
A custom allocator without __GFP_COMP that copies to userspace has been
found in vmw_execbuf_process[1], so this disables the page-span checker
by placing it behind a CONFIG for future work where such things can be
tracked down later.

[1] https://bugzilla.redhat.com/show_bug.cgi?id=1373326

Reported-by: Vinson Lee <vlee@freedesktop.org>
Fixes: f5509cc18d ("mm: Hardened usercopy")
Signed-off-by: Kees Cook <keescook@chromium.org>

Change-Id: I4177c0fb943f14a5faf5c70f5e54bf782c316f43
(cherry picked from commit 8e1f74ea02)
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
2016-09-08 18:10:37 +00:00
..
2016-04-28 14:06:30 +08:00
2015-05-12 15:00:41 +10:00
2015-05-12 15:00:41 +10:00