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mm/mempolicy.c: fix error handling in set_mempolicy and mbind.
commit cf01fb9985e8deb25ccf0ea54d916b8871ae0e62 upstream. In the case that compat_get_bitmap fails we do not want to copy the bitmap to the user as it will contain uninitialized stack data and leak sensitive data. Change-Id: I9dc15840515b7f61adef8cfc238e25dec0715860 Signed-off-by: Chris Salls <email@example.com> Signed-off-by: Linus Torvalds <firstname.lastname@example.org> Signed-off-by: Ben Hutchings <email@example.com>
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