netdev - [PATCH v1 net 0/2] rds: Fix use-after-free of net by tcp reqsk timer.

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Message-ID: <20240223172448.94084-1-kuniyu@amazon.com>
Date: Fri, 23 Feb 2024 09:24:46 -0800
From: Kuniyuki Iwashima <kuniyu@...zon.com>
To: "David S. Miller" <davem@...emloft.net>, Eric Dumazet
	<edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni
	<pabeni@...hat.com>, Allison Henderson <allison.henderson@...cle.com>
CC: Sowmini Varadhan <sowmini.varadhan@...cle.com>, Kuniyuki Iwashima
	<kuniyu@...zon.com>, Kuniyuki Iwashima <kuni1840@...il.com>,
	<netdev@...r.kernel.org>, <linux-rdma@...r.kernel.org>,
	<rds-devel@....oracle.com>
Subject: [PATCH v1 net 0/2] rds: Fix use-after-free of net by tcp reqsk timer.

syzkaller reported an warning of netns ref tracker for RDS TCP listener,
which commit 740ea3c4a0b2 ("tcp: Clean up kernel listener's reqsk in
inet_twsk_purge()") partially fixed.

This series reverts the partial fix on the TCP side and fixes the root
cause on the RDS side.

Kuniyuki Iwashima (2):
  Revert "tcp: Clean up kernel listener's reqsk in inet_twsk_purge()"
  rds: tcp: Fix use-after-free of net in reqsk_timer_handler().

 net/ipv4/inet_timewait_sock.c | 15 +--------------
 net/ipv4/tcp_minisocks.c      |  9 ++++-----
 net/rds/tcp_listen.c          |  5 +++++
 3 files changed, 10 insertions(+), 19 deletions(-)

-- 
2.30.2