| commit | ff06dffbc8abfc60d6a0332f058f1d1bb01abb31 | |
| author | David S. Miller <davem@davemloft.net> | |
| Wed, 23 May 2012 00:53:19 +0000 (22 17:53 -0700) | ||
| committer | David S. Miller <davem@davemloft.net> | |
| Wed, 23 May 2012 06:32:27 +0000 (22 23:32 -0700) | ||
| tree | 0845d6acfaf8221fb5d6ae3281cb1c33a8212cff | treesnapshot (tar.gz zip) |
| parent | 29af0ebaa24d3078d7fd9747a49a763fe7f9ea3c | commitdiff |
sparc: Add full proper error handling to strncpy_from_user().
Linus removed the end-of-address-space hackery from
fs/namei.c:do_getname() so we really have to validate these edge
conditions and cannot cheat any more (as x86 used to as well).
Move to a common C implementation like x86 did. And if both
src and dst are sufficiently aligned we'll do word at a time
copies and checks as well.
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus removed the end-of-address-space hackery from
fs/namei.c:do_getname() so we really have to validate these edge
conditions and cannot cheat any more (as x86 used to as well).
Move to a common C implementation like x86 did. And if both
src and dst are sufficiently aligned we'll do word at a time
copies and checks as well.
Signed-off-by: David S. Miller <davem@davemloft.net>