netdev - [PATCH v1 net 0/2] tcp: Clear tcp_sk(sk)->fastopen_rsk in tcp

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Message-ID: <20250915175800.118793-1-kuniyu@google.com>
Date: Mon, 15 Sep 2025 17:56:45 +0000
From: Kuniyuki Iwashima <kuniyu@...gle.com>
To: Eric Dumazet <edumazet@...gle.com>, Neal Cardwell <ncardwell@...gle.com>, 
	"David S. Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>
Cc: Simon Horman <horms@...nel.org>, Kuniyuki Iwashima <kuniyu@...gle.com>, 
	Kuniyuki Iwashima <kuni1840@...il.com>, netdev@...r.kernel.org
Subject: [PATCH v1 net 0/2] tcp: Clear tcp_sk(sk)->fastopen_rsk in tcp_disconnect().

syzbot reported a warning in tcp_retransmit_timer() for TCP Fast
Open socket.

Patch 1 fixes the issue and Patch 2 adds a test for the scenario.


Kuniyuki Iwashima (2):
  tcp: Clear tcp_sk(sk)->fastopen_rsk in tcp_disconnect().
  selftest: packetdrill: Add
    tcp_fastopen_server_reset-after-disconnect.pkt.

 net/ipv4/tcp.c                                |  5 ++++
 ...fastopen_server_reset-after-disconnect.pkt | 26 +++++++++++++++++++
 2 files changed, 31 insertions(+)
 create mode 100644 tools/testing/selftests/net/packetdrill/tcp_fastopen_server_reset-after-disconnect.pkt

-- 
2.51.0.384.g4c02a37b29-goog