Fix : Backport patch for CVE-2025-21751

Author: SujanaSubr

upstream_patches/CVE-2025-21751.patch

@@ -0,0 +1,53 @@
+--- a/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/mlx5hws_matcher.c	2025-07-17 18:37:24
++++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/mlx5hws_matcher.c	2025-07-22 12:45:55
+@@ -165,14 +165,14 @@
+ 						    next->match_ste.rtc_0_id,
+ 						    next->match_ste.rtc_1_id);
+ 		if (ret) {
+-			mlx5hws_err(tbl->ctx, "Failed to disconnect matcher\n");
+-			goto matcher_reconnect;
++			mlx5hws_err(tbl->ctx, "Fatal error, failed to disconnect matcher\n");
++			return ret;
+ 		}
+ 	} else {
+ 		ret = mlx5hws_table_connect_to_miss_table(tbl, tbl->default_miss.miss_tbl);
+ 		if (ret) {
+-			mlx5hws_err(tbl->ctx, "Failed to disconnect last matcher\n");
+-			goto matcher_reconnect;
++			mlx5hws_err(tbl->ctx, "Fatal error, failed to disconnect last matcher\n");
++			return ret;
+ 		}
+ 	}
+ 
+@@ -180,27 +180,19 @@
+ 	if (prev_ft_id == tbl->ft_id) {
+ 		ret = mlx5hws_table_update_connected_miss_tables(tbl);
+ 		if (ret) {
+-			mlx5hws_err(tbl->ctx, "Fatal error, failed to update connected miss table\n");
+-			goto matcher_reconnect;
++			mlx5hws_err(tbl->ctx,
++				    "Fatal error, failed to update connected miss table\n");
++			return ret;
+ 		}
+ 	}
+ 
+ 	ret = mlx5hws_table_ft_set_default_next_ft(tbl, prev_ft_id);
+ 	if (ret) {
+ 		mlx5hws_err(tbl->ctx, "Fatal error, failed to restore matcher ft default miss\n");
+-		goto matcher_reconnect;
++		return ret;
+ 	}
+ 
+ 	return 0;
+-
+-matcher_reconnect:
+-	if (list_empty(&tbl->matchers_list) || !prev)
+-		list_add(&matcher->list_node, &tbl->matchers_list);
+-	else
+-		/* insert after prev matcher */
+-		list_add(&matcher->list_node, &prev->list_node);
+-
+-	return ret;
+ }
+ 
+ static void hws_matcher_set_rtc_attr_sz(struct mlx5hws_matcher *matcher,

upstream_patches/series

@@ -0,0 +1 @@
+CVE-2025-21751.patch