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tcp_close.c:when tcp socket stays in TCP_FIN_WAIT_1 or TCP_FIN_WAIT_2,calling tcp_close_eventhandler releases received packets 

when tcp socket stays in TCP_FIN_WAIT_1 or TCP_FIN_WAIT_2,not actively calling tcp_close_eventhandler,can reuslt in some TCP socket being set to a closed state,but nofosegs are not directly released,leading to IOB resource leakage.

Signed-off-by: wangchen <wangchen41@xiaomi.com>
This commit is contained in:
wangchen 2024-03-18 15:35:25 +08:00 committed by Petro Karashchenko
parent 5c271198a9
commit ab92b7d04d
1 changed files with 12 additions and 0 deletions
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12
net/tcp/tcp_input.c
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@ -1629,6 +1629,12 @@ found:
*/
conn->tcpstateflags = TCP_CLOSED;
/* In the TCP_FIN_WAIT_1, we need call tcp_close_eventhandler to
* release nofosegs, that we received in this state.
*/
tcp_callback(dev, conn, TCP_CLOSE);
tcp_reset(dev, conn);
return;
}
@ -1662,6 +1668,12 @@ found:
*/
conn->tcpstateflags = TCP_CLOSED;
/* In the TCP_FIN_WAIT_2, we need call tcp_close_eventhandler to
* release nofosegs, that we received in this state.
*/
tcp_callback(dev, conn, TCP_CLOSE);
tcp_reset(dev, conn);
return;
}