Doug Brown c675ef2a20 appletalk: Fix skb allocation size in loopback case ... [ Upstream commit 39935dccb21c60f9bbf1bb72d22ab6fd14ae7705 ] If a DDP broadcast packet is sent out to a non-gateway target, it is also looped back. There is a potential for the loopback device to have a longer hardware header length than the original target route's device, which can result in the skb not being created with enough room for the loopback device's hardware header. This patch fixes the issue by determining that a loopback will be necessary prior to allocating the skb, and if so, ensuring the skb has enough room. This was discovered while testing a new driver that creates a LocalTalk network interface (LTALK_HLEN = 1). It caused an skb_under_panic. Signed-off-by: Doug Brown <doug@schmorgal.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org>		2021-05-20 16:06:48 +08:00
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Makefile	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
aarp.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
atalk_proc.c	appletalk: Fix atalk_proc_init() return path	2021-03-16 16:33:09 +08:00
ddp.c	appletalk: Fix skb allocation size in loopback case	2021-05-20 16:06:48 +08:00
dev.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
sysctl_net_atalk.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00