Felix Fietkau c7af99cc21 net: core: reject skb_copy(_expand) for fraglist GSO skbs
[ Upstream commit d091e579b864fa790dd6a0cd537a22c383126681 ]

SKB_GSO_FRAGLIST skbs must not be linearized, otherwise they become
invalid. Return NULL if such an skb is passed to skb_copy or
skb_copy_expand, in order to prevent a crash on a potential later
call to skb_gso_segment.

Fixes: 3a1296a38d0c ("net: Support GRO/GSO fraglist chaining.")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-17 11:50:50 +02:00
..
2023-10-19 23:05:36 +02:00
2024-03-26 18:21:36 -04:00
2024-05-17 11:50:48 +02:00
2023-06-21 15:59:15 +02:00
2023-06-21 15:59:15 +02:00