Kishon Vijay Abraham I 1edfff795d dma-direct: fix data truncation in dma_direct_get_required_mask() ...

[ Upstream commit cdcda0d1f8f4ab84efe7cd9921c98364398aefd7 ]

The upper 32-bit physical address gets truncated inadvertently
when dma_direct_get_required_mask() invokes phys_to_dma_direct().
This results in dma_addressing_limited() return incorrect value
when used in platforms with LPAE enabled.
Fix it here by explicitly type casting 'max_pfn' to phys_addr_t
in order to prevent overflow of intermediate value while evaluating
'(max_pfn - 1) << PAGE_SHIFT'.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2020-04-29 16:33:00 +02:00

..

coherent.c

dma-coherent: fix integer overflow in the reserved-memory dma allocation

2020-04-23 10:36:30 +02:00

contiguous.c

dma-direct: fix zone selection after an unaddressable CMA allocation

2019-08-21 07:14:10 +09:00

debug.c

dma-debug: fix displaying of dma allocation type

2020-04-23 10:36:43 +02:00

direct.c

dma-direct: fix data truncation in dma_direct_get_required_mask()

2020-04-29 16:33:00 +02:00

dummy.c

dma-mapping: factor out dummy DMA ops

2018-12-13 21:06:12 +01:00

Kconfig

dma-mapping: remove arch_dma_mmap_pgprot

2019-08-29 16:43:22 +02:00

Makefile

dma-mapping: improve selection of dma_declare_coherent availability

2019-02-20 07:26:35 -07:00

mapping.c

dma-mapping: Fix dma_pgprot() for unencrypted coherent pages

2020-04-17 10:50:01 +02:00

remap.c

dma-mapping: fix false positivse warnings in dma_common_free_remap()

2019-10-05 10:24:17 +02:00

swiotlb.c

powerpc updates for 5.4

2019-09-20 11:48:06 -07:00

virt.c

dma-mapping: zero memory returned from dma_alloc_*

2018-12-20 08:13:52 +01:00