nfc: nci: fix the UAF of rf_conn_info object
authorLin Ma <linma@zju.edu.cn>
Thu, 7 Oct 2021 17:44:30 +0000 (19:44 +0200)
committerDavid S. Miller <davem@davemloft.net>
Fri, 8 Oct 2021 16:24:32 +0000 (17:24 +0100)
commit1b1499a817c90fd1ce9453a2c98d2a01cca0e775
tree4d49ead6174f2e3dfbf98a98cfd502079c1bdd73
parent95f7f3e7dc6bd2e735cb5de11734ea2222b1e05a
nfc: nci: fix the UAF of rf_conn_info object

The nci_core_conn_close_rsp_packet() function will release the conn_info
with given conn_id. However, it needs to set the rf_conn_info to NULL to
prevent other routines like nci_rf_intf_activated_ntf_packet() to trigger
the UAF.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Lin Ma <linma@zju.edu.cn>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/nfc/nci/rsp.c