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tcp: fix TIME_WAIT socket reference leak on PSP policy failure

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[ Upstream commit 2c1931a811 ]

Release the TIME_WAIT socket reference and jump to discard_it
upon PSP policy failure in both IPv4 and IPv6 receive paths.
This prevents a memory leak of tcp_tw_bucket structures.

Fixes: 659a2899a5 ("tcp: add datapath logic for PSP with inline key exchange")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Daniel Zahka <daniel.zahka@gmail.com>
Link: https://patch.msgid.link/20260710181317.4060230-1-edumazet@google.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Eric Dumazet
2026-08-03 11:21:35 +02:00
committed by Greg Kroah-Hartman
parent 6875ee2bef
commit e666af5dcc
2 changed files with 8 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files
net/ipv4/tcp_ipv4.c
+4 -2
View File
@@ -2452,8 +2452,10 @@ do_time_wait:
}
drop_reason = psp_twsk_rx_policy_check(inet_twsk(sk), skb);
if (drop_reason)
break;
if (drop_reason) {
inet_twsk_put(inet_twsk(sk));
goto discard_it;
}
}
/* to ACK */
fallthrough;
net/ipv6/tcp_ipv6.c
+4 -2
View File
@@ -1984,8 +1984,10 @@ do_time_wait:
}
drop_reason = psp_twsk_rx_policy_check(inet_twsk(sk), skb);
if (drop_reason)
break;
if (drop_reason) {
inet_twsk_put(inet_twsk(sk));
goto discard_it;
}
}
/* to ACK */
fallthrough;