On 8/26/2024 11:10 AM, Manoj Vishwanathan wrote:
The transaction salt was being accessed before acquiring the idpf_vc_xn_lock when idpf has to forward the virtchnl reply. Fixes: 34c21fa894a1a (“idpf: implement virtchnl transaction manager”) Signed-off-by: Manoj Vishwanathan <[email protected]>
Reviewed-by: Pavan Kumar Linga <[email protected]>
--- drivers/net/ethernet/intel/idpf/idpf_virtchnl.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/intel/idpf/idpf_virtchnl.c b/drivers/net/ethernet/intel/idpf/idpf_virtchnl.c index 70986e12da28..30eec674d594 100644 --- a/drivers/net/ethernet/intel/idpf/idpf_virtchnl.c +++ b/drivers/net/ethernet/intel/idpf/idpf_virtchnl.c @@ -612,14 +612,15 @@ idpf_vc_xn_forward_reply(struct idpf_adapter *adapter, return -EINVAL; } xn = &adapter->vcxn_mngr->ring[xn_idx]; + idpf_vc_xn_lock(xn); salt = FIELD_GET(IDPF_VC_XN_SALT_M, msg_info); if (xn->salt != salt) { dev_err_ratelimited(&adapter->pdev->dev, "Transaction salt does not match (%02x != %02x)\n", xn->salt, salt); + idpf_vc_xn_unlock(xn); return -EINVAL; }- idpf_vc_xn_lock(xn);switch (xn->state) { case IDPF_VC_XN_WAITING: /* success */
