ndisc: use RCU protection in ndisc_alloc_skb()
[ Upstream commit 628e6d18930bbd21f2d4562228afe27694f66da9 ] ndisc_alloc_skb() can be called without RTNL or RCU being held. Add RCU protection to avoid possible UAF. Fixes: de09334b ("ndisc: Introduce ndisc_alloc_skb() helper.") Signed-off-by:Eric Dumazet <edumazet@google.com> Reviewed-by:
David Ahern <dsahern@kernel.org> Reviewed-by:
Kuniyuki Iwashima <kuniyu@amazon.com> Link: https://patch.msgid.link/20250207135841.1948589-3-edumazet@google.com Signed-off-by:
Jakub Kicinski <kuba@kernel.org> Signed-off-by:
Sasha Levin <sashal@kernel.org>
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