This is a note to let you know that I've just added the patch titled
net: arcnet: Do not call kfree_skb() under local_irq_disable()
to the 4.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
net-arcnet-do-not-call-kfree_skb-under-local_irq_dis.patch
and it can be found in the queue-4.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit ba5602451b2f0157ffb4170456bb2cde73b68240
Author: Jinjie Ruan <ruanjinjie@xxxxxxxxxx>
Date: Thu Aug 24 14:43:36 2023 +0800
net: arcnet: Do not call kfree_skb() under local_irq_disable()
[ Upstream commit 786c96e92fb9e854cb8b0cb7399bb2fb28e15c4b ]
It is not allowed to call kfree_skb() from hardware interrupt
context or with hardware interrupts being disabled.
So replace kfree_skb() with dev_kfree_skb_irq() under
local_irq_disable(). Compile tested only.
Fixes: 05fcd31cc472 ("arcnet: add err_skb package for package status feedback")
Signed-off-by: Jinjie Ruan <ruanjinjie@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/arcnet/arcnet.c b/drivers/net/arcnet/arcnet.c
index 553776cc1d29d..2b112d3d85409 100644
--- a/drivers/net/arcnet/arcnet.c
+++ b/drivers/net/arcnet/arcnet.c
@@ -434,7 +434,7 @@ static void arcnet_reply_tasklet(unsigned long data)
ret = sock_queue_err_skb(sk, ackskb);
if (ret)
- kfree_skb(ackskb);
+ dev_kfree_skb_irq(ackskb);
local_irq_enable();
};
