From: Yunjian Wang wangyunjian@huawei.com
stable inclusion from stable-v4.19.191 commit c1322eaeb8af0d8985b5cc5fa759140fa0e57b84 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I5RZPX CVE: NA
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[ Upstream commit 38318f23a7ef86a8b1862e5e8078c4de121960c3 ]
Currently the call to i40e_client_del_instance frees the object pf->cinst, however pf->cinst->lan_info is being accessed after the free. Fix this by adding the missing return.
Addresses-Coverity: ("Read from pointer after free") Fixes: 7b0b1a6d0ac9 ("i40e: Disable iWARP VSI PETCP_ENA flag on netdev down events") Signed-off-by: Yunjian Wang wangyunjian@huawei.com Signed-off-by: Tony Nguyen anthony.l.nguyen@intel.com
Signed-off-by: tangbin tangbin@cmss.chinamobile.com --- drivers/net/ethernet/intel/i40e/i40e_client.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/net/ethernet/intel/i40e/i40e_client.c b/drivers/net/ethernet/intel/i40e/i40e_client.c index 5f3b8b9ff511..c1832a848714 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_client.c +++ b/drivers/net/ethernet/intel/i40e/i40e_client.c @@ -377,6 +377,7 @@ void i40e_client_subtask(struct i40e_pf *pf) clear_bit(__I40E_CLIENT_INSTANCE_OPENED, &cdev->state); i40e_client_del_instance(pf); + return; } } }