From 2ced96df8746edcb221f25f7c35227ec40acb346 Mon Sep 17 00:00:00 2001
From: Magali Lemes <magali.lemes@canonical.com>
Date: Tue, 11 Mar 2025 15:54:24 -0300
Subject: [PATCH] Revert "sctp: sysctl: cookie_hmac_alg: avoid using
 current->nsproxy"

This reverts commit 1031462a944ba0fa83c25ab1111465f8345b5589 as it
was backported incorrectly.
A subsequent commit will re-backport the original patch.

Signed-off-by: Magali Lemes <magali.lemes@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/sctp/sysctl.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/net/sctp/sysctl.c b/net/sctp/sysctl.c
index 7777c0096a38..3fc2fa57424b 100644
--- a/net/sctp/sysctl.c
+++ b/net/sctp/sysctl.c
@@ -441,8 +441,7 @@ static int proc_sctp_do_auth(struct ctl_table *ctl, int write,
 			     void __user *buffer, size_t *lenp,
 			     loff_t *ppos)
 {
-	struct net *net = container_of(ctl->data, struct net,
-				       sctp.sctp_hmac_alg);
+	struct net *net = current->nsproxy->net_ns;
 	struct ctl_table tbl;
 	int new_value, ret;