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The rcu page table free code uses a couple of bits in the page table pointer passed to tlb_remove_table to discern the different page table types. __tlb_remove_table extracts the type with an incorrect mask which leads to memory leaks. The correct mask is ((FRAG_MASK << 4) | FRAG_MASK). Cc: stable@kernel.org Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>