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8abaae62f3
linux/drivers/infiniband/core
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Yann Droneaud 8abaae62f3 IB/core: disallow registering 0-sized memory region 
If ib_umem_get() is called with a size equal to 0 and an
non-page aligned address, one page will be pinned and a
0-sized umem will be returned to the caller.

This should not be allowed: it's not expected for a memory
region to have a size equal to 0.

This patch adds a check to explicitly refuse to register
a 0-sized region.

Link: http://mid.gmane.org/cover.1428929103.git.ydroneaud@opteya.com
Cc: <stable@vger.kernel.org>
Cc: Shachar Raindel <raindel@mellanox.com>
Cc: Jack Morgenstein <jackm@mellanox.com>
Cc: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Yann Droneaud <ydroneaud@opteya.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-04-15 16:05:02 -04:00
..
addr.c IB/addr: Improve address resolution callback scheduling 2014-12-15 18:10:13 -08:00
agent.c IB/mad: add new ioctl to ABI to support new registration options 2014-08-10 20:36:00 -07:00
agent.h
cache.c IB/core: Add ib_find_exact_cached_pkey() 2012-09-30 20:33:30 -07:00
cm_msgs.h IB/core: Move CM_xxx_ATTR_ID macros from cm_msgs.h to ib_cm.h 2012-07-08 18:05:06 -07:00
cm.c IB/mad: add new ioctl to ABI to support new registration options 2014-08-10 20:36:00 -07:00
cma.c RDMA/core: Add support for iWARP Port Mapper user space service 2014-06-10 10:11:45 -07:00
core_priv.h IB/core: Resolve Ethernet L2 addresses when modifying QP 2014-01-19 15:14:04 -08:00
device.c IB/core: Handle table with full and partial membership for the same P_Key 2012-09-30 20:33:29 -07:00
fmr_pool.c hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
iwcm.c RDMA/iwcm: Use a default listen backlog if needed 2014-08-05 07:33:24 -07:00
iwcm.h
iwpm_msg.c RDMA/core: Add support for iWARP Port Mapper user space service 2014-06-10 10:11:45 -07:00
iwpm_util.c RDMA/core: Add support for iWARP Port Mapper user space service 2014-06-10 10:11:45 -07:00
iwpm_util.h RDMA/core: Add support for iWARP Port Mapper user space service 2014-06-10 10:11:45 -07:00
mad_priv.h IB/mad: Update module to [pr|dev]_* style print messages 2014-08-10 20:35:39 -07:00
mad_rmpp.c
mad_rmpp.h
mad.c IB/mad: Add user space RMPP support 2014-08-10 20:36:00 -07:00
Makefile IB/core: Implement support for MMU notifiers regarding on demand paging regions 2014-12-15 18:13:36 -08:00
multicast.c IB/core: Fix mgid key handling in SA agent multicast data-base 2014-12-15 18:10:13 -08:00
netlink.c RDMA/core: Add support for iWARP Port Mapper user space service 2014-06-10 10:11:45 -07:00
packer.c infiniband: add in export.h for files using EXPORT_SYMBOL/THIS_MODULE 2011-10-31 19:31:35 -04:00
sa_query.c IB/mad: add new ioctl to ABI to support new registration options 2014-08-10 20:36:00 -07:00
sa.h
smi.c
smi.h
sysfs.c IB/core: Fix kobject leak on device register error flow 2014-06-05 09:37:10 -07:00
ucm.c IB/core: convert to idr_alloc() 2013-02-27 19:10:16 -08:00
ucma.c IB/core: When marshaling ucma path from user-space, clear unused fields 2015-02-17 12:34:52 -08:00
ud_header.c infiniband: add in export.h for files using EXPORT_SYMBOL/THIS_MODULE 2011-10-31 19:31:35 -04:00
umem_odp.c IB/core: Properly handle registration of on-demand paging MRs after dereg 2015-02-17 22:14:56 -08:00
umem_rbtree.c IB/core: Implement support for MMU notifiers regarding on demand paging regions 2014-12-15 18:13:36 -08:00
umem.c IB/core: disallow registering 0-sized memory region 2015-04-15 16:05:02 -04:00
user_mad.c IB/mad: Add user space RMPP support 2014-08-10 20:36:00 -07:00
uverbs_cmd.c Merge branches 'core', 'cxgb4', 'iser', 'mlx4', 'mlx5', 'ocrdma', 'odp', 'qib' and 'srp' into for-next 2015-02-20 09:04:40 -08:00
uverbs_main.c IB/core: Add support for extended query device caps 2015-02-18 08:36:26 -08:00
uverbs_marshall.c IB/core: When marshaling uverbs path, clear unused fields 2014-09-22 09:46:52 -07:00
uverbs.h IB/core: Add support for extended query device caps 2015-02-18 08:36:26 -08:00
verbs.c IB/core: Do not resolve VLAN if already resolved 2014-12-15 18:10:12 -08:00