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(parent: f3954dc) | patch
asm-generic: make copy_from_user() zero the destination properly
authorAl Viro <viro@zeniv.linux.org.uk>
Wed, 17 Aug 2016 20:36:37 +0000 (16:36 -0400)
committerAl Viro <viro@zeniv.linux.org.uk>
Fri, 9 Sep 2016 23:34:32 +0000 (19:34 -0400)
commitac41b3e0cec20a3858e38ca4c609df84237f6171
treeaebbe4cb83704b6a7c09b590adc3e1dd84fc139dtree | snapshot
parentf3954dc097a82ca7364a0999ed0cfdf081759547commit | diff
asm-generic: make copy_from_user() zero the destination properly

... in all cases, including the failing access_ok()

Note that some architectures using asm-generic/uaccess.h have
__copy_from_user() not zeroing the tail on failure halfway
through.  This variant works either way.

Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
include/asm-generic/uaccess.h diff | blob | history
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