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Thu, 04 Jul 2024 04:02:58 -0700 (PDT) Received: from kernelexploit-virtual-machine.localdomain ([121.185.186.233]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-2c99a9977cfsm1190793a91.34.2024.07.04.04.02.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 04 Jul 2024 04:02:57 -0700 (PDT) From: Jeongjun Park To: syzbot+705c61d60b091ef42c04@syzkaller.appspotmail.com Cc: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Subject: Re: [syzbot] [net?] possible deadlock in team_del_slave (3) Date: Thu, 4 Jul 2024 20:02:54 +0900 Message-Id: <20240704110254.91612-1-aha310510@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <000000000000ffc5d80616fea23d@google.com> References: <000000000000ffc5d80616fea23d@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit #syz test git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master --- drivers/net/team/team_core.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/team/team_core.c b/drivers/net/team/team_core.c index ab1935a4aa2c..245566a1875d 100644 --- a/drivers/net/team/team_core.c +++ b/drivers/net/team/team_core.c @@ -1213,7 +1213,9 @@ static int team_port_add(struct team *team, struct net_device *port_dev, goto err_port_enter; } + mutex_unlock(&team->lock); err = dev_open(port_dev, extack); + mutex_lock(&team->lock); if (err) { netdev_dbg(dev, "Device %s opening failed\n", portname); --