ARM: 8426/1: dma-mapping: add missing range check in dma_mmap()

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commit 371f0f085f upstream.

dma_mmap() function in IOMMU-based dma-mapping implementation lacked
a check for valid range of mmap parameters (offset and buffer size), what
might have caused access beyond the allocated buffer. This patch fixes
this issue.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Marek Szyprowski 2015-08-28 09:41:39 +01:00 • committed by Greg Kroah-Hartman

parent dd5efc80af

commit 19c61dfda0

1 changed files with 5 additions and 0 deletions

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arch/arm/mm/dma-mapping.c

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