diff options
| author | Kuniyuki Iwashima <kuniyu@google.com> | 2025-10-20 11:44:08 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-10-23 16:20:46 +0200 |
| commit | ad16235c9d3ef7ec17c109ff39b7504f49d17072 (patch) | |
| tree | 4771aeccc0280767060f0a1bbcdc896e4b3af164 /include/net/aligned_data.h | |
| parent | c159590e32346994d6f88eb55f5c4869e486da98 (diff) | |
mptcp: Use __sk_dst_get() and dst_dev_rcu() in mptcp_active_enable().
[ Upstream commit 893c49a78d9f85e4b8081b908fb7c407d018106a ]
mptcp_active_enable() is called from subflow_finish_connect(),
which is icsk->icsk_af_ops->sk_rx_dst_set() and it's not always
under RCU.
Using sk_dst_get(sk)->dev could trigger UAF.
Let's use __sk_dst_get() and dst_dev_rcu().
Fixes: 27069e7cb3d1 ("mptcp: disable active MPTCP in case of blackhole")
Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20250916214758.650211-8-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Stable-dep-of: 833d4313bc1e ("mptcp: reset blackhole on success with non-loopback ifaces")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/net/aligned_data.h')
0 files changed, 0 insertions, 0 deletions