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authorDan Rosenberg <drosenberg@vsecurity.com>2010-11-17 09:37:16 +0300
committerDavid S. Miller <davem@davemloft.net>2010-11-17 23:20:52 +0300
commit218854af84038d828a32f061858b1902ed2beec6 (patch)
treed5c688bc9856b3763e354619ff46ebe20edad891 /net/9p
parent7d98ffd8c2d1da6cec5d84eba42c4aa836a93f85 (diff)
downloadlinux-218854af84038d828a32f061858b1902ed2beec6.tar.xz
rds: Integer overflow in RDS cmsg handling
In rds_cmsg_rdma_args(), the user-provided args->nr_local value is restricted to less than UINT_MAX. This seems to need a tighter upper bound, since the calculation of total iov_size can overflow, resulting in a small sock_kmalloc() allocation. This would probably just result in walking off the heap and crashing when calling rds_rdma_pages() with a high count value. If it somehow doesn't crash here, then memory corruption could occur soon after. Signed-off-by: Dan Rosenberg <drosenberg@vsecurity.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/9p')
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