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authorChris Mason <clm@fb.com>2016-05-17 14:43:19 -0700
committerChris Mason <clm@fb.com>2016-05-17 14:43:19 -0700
commitc315ef8d9db7f1a0ebd023a395ebdfde1c68057e (patch)
tree501e1fc558de9e56b78e457aa928fa255e660486 /drivers/infiniband/core/ucma.c
parenta88336d13c66fc171f336c6332fcb67339894e08 (diff)
parent5f9a8a51d8b95505d8de8b7191ae2ed8c504d4af (diff)
Merge branch 'for-chris-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/fdmanana/linux into for-linus-4.7
Signed-off-by: Chris Mason <clm@fb.com>
Diffstat (limited to 'drivers/infiniband/core/ucma.c')
-rw-r--r--drivers/infiniband/core/ucma.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c
index dd3bcceadfde..c0f3826abb30 100644
--- a/drivers/infiniband/core/ucma.c
+++ b/drivers/infiniband/core/ucma.c
@@ -1574,6 +1574,9 @@ static ssize_t ucma_write(struct file *filp, const char __user *buf,
struct rdma_ucm_cmd_hdr hdr;
ssize_t ret;
+ if (WARN_ON_ONCE(!ib_safe_file_access(filp)))
+ return -EACCES;
+
if (len < sizeof(hdr))
return -EINVAL;