diff options
| author | Dan Rosenberg <drosenberg@vsecurity.com> | 2010-11-17 06:37:16 +0000 |
|---|---|---|
| committer | Paul Gortmaker <paul.gortmaker@windriver.com> | 2011-04-17 16:15:59 -0400 |
| commit | 97d39ebaca2fd0c694b9695daef218b9c1af5971 (patch) | |
| tree | a17682e7b29bd467a2bbabfb064ef48e42091a3c /net/unix/af_unix.c | |
| parent | 623da35398c12085a237fc985613c7fe2b0a5a1a (diff) | |
rds: Integer overflow in RDS cmsg handling
commit 218854af84038d828a32f061858b1902ed2beec6 upstream.
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>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Diffstat (limited to 'net/unix/af_unix.c')
0 files changed, 0 insertions, 0 deletions