kernel/linux.git/Documentation/netlink, branch v6.1.168Linux kernel stable tree (mirror)https://git.radix-linux.su/kernel/linux.git/atom?h=v6.1.1682026-02-06T15:44:05+00:00fou: Don't allow 0 for FOU_ATTR_IPPROTO.2026-02-06T15:44:05+00:00Kuniyuki Iwashimakuniyu@google.com2026-01-15T17:24:48+00:00urn:sha1:6e983789b7588ee59cbf303583546c043bad8e19
[ Upstream commit 7a9bc9e3f42391e4c187e099263cf7a1c4b69ff5 ]
fou_udp_recv() has the same problem mentioned in the previous
patch.
If FOU_ATTR_IPPROTO is set to 0, skb is not freed by
fou_udp_recv() nor "resubmit"-ted in ip_protocol_deliver_rcu().
Let's forbid 0 for FOU_ATTR_IPPROTO.
Fixes: 23461551c0062 ("fou: Support for foo-over-udp RX path")
Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20260115172533.693652-4-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
netlink: add a proto specification for FOU2026-02-06T15:44:05+00:00Jakub Kicinskikuba@kernel.org2023-01-20T17:50:37+00:00urn:sha1:67d1483d5b7704091eb7562eb69332af2faea86c
[ Upstream commit 4eb77b4ecd3c5eaab83adf76e67e0a7ed2a24418 ]
FOU has a reasonably modern Genetlink family. Add a spec.
Acked-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Stable-dep-of: 7a9bc9e3f423 ("fou: Don't allow 0 for FOU_ATTR_IPPROTO.")
Signed-off-by: Sasha Levin <sashal@kernel.org>