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authorLeon Romanovsky <leonro@mellanox.com>2017-08-01 09:41:35 +0300
committerDoug Ledford <dledford@redhat.com>2017-08-04 14:24:05 -0400
commitf7a6cb7b38c6845b26aaa8bbdf519ff6e3090831 (patch)
tree4d99e9f004c4b655dc0b06b9bc175edba6cc3d4d
parent5fff41e1f89d93feef9833c49a415dc337af5a99 (diff)
downloadlinux-f7a6cb7b38c6845b26aaa8bbdf519ff6e3090831.tar.bz2
RDMA/uverbs: Prevent leak of reserved field
initialize to zero the response structure to prevent the leakage of "resp.reserved" field. drivers/infiniband/core/uverbs_cmd.c:1178 ib_uverbs_resize_cq() warn: check that 'resp.reserved' doesn't leak information Fixes: 33b9b3ee9709 ("IB: Add userspace support for resizing CQs") Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
-rw-r--r--drivers/infiniband/core/uverbs_cmd.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index 2c98533a0203..c551d2b275fd 100644
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -1153,7 +1153,7 @@ ssize_t ib_uverbs_resize_cq(struct ib_uverbs_file *file,
int out_len)
{
struct ib_uverbs_resize_cq cmd;
- struct ib_uverbs_resize_cq_resp resp;
+ struct ib_uverbs_resize_cq_resp resp = {};
struct ib_udata udata;
struct ib_cq *cq;
int ret = -EINVAL;