[PATCH] thunderbolt: tb: fix use after free in tb_activate_pcie_devices

From: Gustavo A. R. Silva
Date: Sun Nov 05 2017 - 00:53:04 EST


Add a ÌÌcontinue statement in order to avoid using a previously
free'd pointer tunnel in list_add.

Addresses-Coverity-ID: 1415336
Fixes: 9d3cce0b6136 ("thunderbolt: Introduce thunderbolt bus and connection manager")
Signed-off-by: Gustavo A. R. Silva <garsilva@xxxxxxxxxxxxxx>
---
drivers/thunderbolt/tb.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/thunderbolt/tb.c b/drivers/thunderbolt/tb.c
index d674e06..1424581 100644
--- a/drivers/thunderbolt/tb.c
+++ b/drivers/thunderbolt/tb.c
@@ -225,6 +225,7 @@ static void tb_activate_pcie_devices(struct tb *tb)
tb_port_info(up_port,
"PCIe tunnel activation failed, aborting\n");
tb_pci_free(tunnel);
+ continue;
}

list_add(&tunnel->list, &tcm->tunnel_list);
--
2.7.4