Jamie Bainbridge 034a92c6a8 qede: confirm skb is allocated before using
[ Upstream commit 4e910dbe36508654a896d5735b318c0b88172570 ]

qede_build_skb() assumes build_skb() always works and goes straight
to skb_reserve(). However, build_skb() can fail under memory pressure.
This results in a kernel panic because the skb to reserve is NULL.

Add a check in case build_skb() failed to allocate and return NULL.

The NULL return is handled correctly in callers to qede_build_skb().

Fixes: 8a8633978b842 ("qede: Add build_skb() support.")
Signed-off-by: Jamie Bainbridge <jamie.bainbridge@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-15 14:18:38 +02:00
..
2021-07-25 14:35:15 +02:00
2021-12-29 12:23:35 +01:00