[PATCH net v2 04/12] idpf: nullify pointers after they are freed
From: Tony Nguyen <anthony.l.nguyen@intel.com>
Date: 2026-02-25 21:15:56
Subsystem:
intel ethernet drivers, networking drivers, the rest · Maintainers:
Tony Nguyen, Przemek Kitszel, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Li Li <redacted>
rss_data->rss_key needs to be nullified after it is freed.
Checks like "if (!rss_data->rss_key)" in the code could fail
if it is not nullified.
Tested: built and booted the kernel.
Fixes: 83f38f210b85 ("idpf: Fix RSS LUT NULL pointer crash on early ethtool operations")
Signed-off-by: Li Li <redacted>
Reviewed-by: Aleksandr Loktionov <redacted>
Tested-by: Samuel Salin <redacted>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
---
drivers/net/ethernet/intel/idpf/idpf_lib.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/net/ethernet/intel/idpf/idpf_lib.c b/drivers/net/ethernet/intel/idpf/idpf_lib.c
index 94da5fbd56f1..7ce6a0e4acb6 100644
--- a/drivers/net/ethernet/intel/idpf/idpf_lib.c
+++ b/drivers/net/ethernet/intel/idpf/idpf_lib.c@@ -1320,6 +1320,7 @@ static struct idpf_vport *idpf_vport_alloc(struct idpf_adapter *adapter, free_rss_key: kfree(rss_data->rss_key); + rss_data->rss_key = NULL; free_qreg_chunks: idpf_vport_deinit_queue_reg_chunks(adapter->vport_config[idx]); free_vector_idxs:
--
2.47.1