Commit a5880b84 authored by Leon Romanovsky's avatar Leon Romanovsky Committed by Doug Ledford
Browse files

RDMA/ucma: Check that user doesn't overflow QP state

The QP state is limited and declared in enum ib_qp_state,
but ucma user was able to supply any possible (u32) value.

Fixes: 75216638

 ("RDMA/cma: Export rdma cm interface to userspace")
Signed-off-by: default avatarLeon Romanovsky <>
Signed-off-by: default avatarDoug Ledford <>
parent aa0de36a
......@@ -1149,6 +1149,9 @@ static ssize_t ucma_init_qp_attr(struct ucma_file *file,
if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
return -EFAULT;
if (cmd.qp_state > IB_QPS_ERR)
return -EINVAL;
ctx = ucma_get_ctx(file,;
if (IS_ERR(ctx))
return PTR_ERR(ctx);
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