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path: root/drivers/tee/tee_core.c
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Diffstat (limited to 'drivers/tee/tee_core.c')
-rw-r--r--drivers/tee/tee_core.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/tee/tee_core.c b/drivers/tee/tee_core.c
index 6aec502c495c..fb907bf43708 100644
--- a/drivers/tee/tee_core.c
+++ b/drivers/tee/tee_core.c
@@ -333,6 +333,13 @@ static int tee_ioctl_open_session(struct tee_context *ctx,
goto out;
}
+ if (arg.clnt_login >= TEE_IOCTL_LOGIN_REE_KERNEL_MIN &&
+ arg.clnt_login <= TEE_IOCTL_LOGIN_REE_KERNEL_MAX) {
+ pr_debug("login method not allowed for user-space client\n");
+ rc = -EPERM;
+ goto out;
+ }
+
rc = ctx->teedev->desc->ops->open_session(ctx, &arg, params);
if (rc)
goto out;