Mohamed Ghannam 5d127d15ad RDS: Heap OOB write in rds_message_alloc_sgs()
[ Upstream commit c095508770aebf1b9218e77026e48345d719b17c ]

When args->nr_local is 0, nr_pages gets also 0 due some size
calculation via rds_rm_size(), which is later used to allocate
pages for DMA, this bug produces a heap Out-Of-Bound write access
to a specific memory region.

Signed-off-by: Mohamed Ghannam <simo.ghannam@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-17 09:45:21 +01:00
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