patch 'net/e1000/base: fix possible variable overflow' has been queued to stable release 24.11.7

[luca.boccassi at gmail.com]

Hi,

FYI, your patch has been queued to stable release 24.11.7

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 06/13/26. So please
shout if anyone has objections.

Also note that after the patch there's a diff of the upstream commit vs the
patch applied to the branch. This will indicate if there was any rebasing
needed to apply to the stable branch. If there were code changes for rebasing
(ie: not only metadata diffs), please double check that the rebase was
correctly done.

Queued patches are on a temporary branch at:
https://github.com/bluca/dpdk-stable

This queued commit can be viewed at:
https://github.com/bluca/dpdk-stable/commit/01b1bd7ac6d6b0d35db669dc25d47b8bdac40b21

Thanks.

Luca Boccassi

---
>From 01b1bd7ac6d6b0d35db669dc25d47b8bdac40b21 Mon Sep 17 00:00:00 2001
From: Lukasz Czapnik <lukasz.czapnik at intel.com>
Date: Wed, 20 May 2026 12:52:40 +0000
Subject: [PATCH] net/e1000/base: fix possible variable overflow

[ upstream commit 214cb0d7f1e08dd8fffc4468a387398521915943 ]

Bits can be lost as temporary math is done on signed variables and the
result is assigned to an unsigned variable. Cast to u32 to force the
compiler to do operations on unsigned temporary variables.

Fixes: af75078fece3 ("first public release")

Signed-off-by: Lukasz Czapnik <lukasz.czapnik at intel.com>
Signed-off-by: Ciara Loftus <ciara.loftus at intel.com>
Acked-by: Bruce Richardson <bruce.richardson at intel.com>
---
 drivers/net/e1000/base/e1000_mac.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/e1000/base/e1000_mac.c b/drivers/net/e1000/base/e1000_mac.c
index 1ab5db98f2..c8e01d9f9e 100644
--- a/drivers/net/e1000/base/e1000_mac.c
+++ b/drivers/net/e1000/base/e1000_mac.c
@@ -1954,7 +1954,7 @@ s32 e1000_blink_led_generic(struct e1000_hw *hw)
 			     (mode == E1000_LEDCTL_MODE_LED_OFF))) {
 				ledctl_blink &=
 				    ~(E1000_LEDCTL_LED0_MODE_MASK << i);
-				ledctl_blink |= (E1000_LEDCTL_LED0_BLINK |
+				ledctl_blink |= (u32)(E1000_LEDCTL_LED0_BLINK |
 						 E1000_LEDCTL_MODE_LED_ON) << i;
 			}
 		}
-- 
2.47.3

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2026-06-11 14:20:03.550263581 +0100
+++ 0056-net-e1000-base-fix-possible-variable-overflow.patch	2026-06-11 14:20:01.262747149 +0100
@@ -1 +1 @@
-From 214cb0d7f1e08dd8fffc4468a387398521915943 Mon Sep 17 00:00:00 2001
+From 01b1bd7ac6d6b0d35db669dc25d47b8bdac40b21 Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit 214cb0d7f1e08dd8fffc4468a387398521915943 ]
+
@@ -11 +12,0 @@
-Cc: stable at dpdk.org
@@ -17 +18 @@
- drivers/net/intel/e1000/base/e1000_mac.c | 2 +-
+ drivers/net/e1000/base/e1000_mac.c | 2 +-
@@ -20,5 +21,5 @@
-diff --git a/drivers/net/intel/e1000/base/e1000_mac.c b/drivers/net/intel/e1000/base/e1000_mac.c
-index 41aae86ffe..408e8e46e8 100644
---- a/drivers/net/intel/e1000/base/e1000_mac.c
-+++ b/drivers/net/intel/e1000/base/e1000_mac.c
-@@ -1970,7 +1970,7 @@ s32 e1000_blink_led_generic(struct e1000_hw *hw)
+diff --git a/drivers/net/e1000/base/e1000_mac.c b/drivers/net/e1000/base/e1000_mac.c
+index 1ab5db98f2..c8e01d9f9e 100644
+--- a/drivers/net/e1000/base/e1000_mac.c
++++ b/drivers/net/e1000/base/e1000_mac.c
+@@ -1954,7 +1954,7 @@ s32 e1000_blink_led_generic(struct e1000_hw *hw)