linux-kernel - [PATCH 072/190] Revert "net: atm: Reduce the severity of logging in unlink_clip

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Date:   Wed, 21 Apr 2021 14:59:07 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Aditya Pakki <pakki001@....edu>,
        "David S . Miller" <davem@...emloft.net>
Subject: [PATCH 072/190] Revert "net: atm: Reduce the severity of logging in unlink_clip_vcc"

This reverts commit 60f5c4aaae452ae9252128ef7f9ae222aa70c569.

Commits from @umn.edu addresses have been found to be submitted in "bad
faith" to try to test the kernel community's ability to review "known
malicious" changes.  The result of these submissions can be found in a
paper published at the 42nd IEEE Symposium on Security and Privacy
entitled, "Open Source Insecurity: Stealthily Introducing
Vulnerabilities via Hypocrite Commits" written by Qiushi Wu (University
of Minnesota) and Kangjie Lu (University of Minnesota).

Because of this, all submissions from this group must be reverted from
the kernel tree and will need to be re-reviewed again to determine if
they actually are a valid fix.  Until that work is complete, remove this
change to ensure that no problems are being introduced into the
codebase.

Cc: Aditya Pakki <pakki001@....edu>
Cc: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 net/atm/clip.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/net/atm/clip.c b/net/atm/clip.c
index 294cb9efe3d3..a7972da7235d 100644
--- a/net/atm/clip.c
+++ b/net/atm/clip.c
@@ -89,7 +89,7 @@ static void unlink_clip_vcc(struct clip_vcc *clip_vcc)
 	struct clip_vcc **walk;

 	if (!entry) {
-		pr_err("!clip_vcc->entry (clip_vcc %p)\n", clip_vcc);
+		pr_crit("!clip_vcc->entry (clip_vcc %p)\n", clip_vcc);
 		return;
 	}
 	netif_tx_lock_bh(entry->neigh->dev);	/* block clip_start_xmit() */
@@ -109,10 +109,10 @@ static void unlink_clip_vcc(struct clip_vcc *clip_vcc)
 			error = neigh_update(entry->neigh, NULL, NUD_NONE,
 					     NEIGH_UPDATE_F_ADMIN, 0);
 			if (error)
-				pr_err("neigh_update failed with %d\n", error);
+				pr_crit("neigh_update failed with %d\n", error);
 			goto out;
 		}
-	pr_err("ATMARP: failed (entry %p, vcc 0x%p)\n", entry, clip_vcc);
+	pr_crit("ATMARP: failed (entry %p, vcc 0x%p)\n", entry, clip_vcc);
 out:
 	netif_tx_unlock_bh(entry->neigh->dev);
 }
-- 
2.31.1