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net: wget: fix TCP sequence number wrap around issue

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If tcp_seq_num is wrap around, tcp_seq_num >= initial_data_seq_num
isn't satisfied and store_block() isn't called.
The condition has a wrap around issue, so it is fixed in this patch.

Signed-off-by: Yasuharu Shibata <yasuharu.shibata@gmail.com>
Reviewed-by: Michael Trimarchi <michael@amarulasolutions.com>
Suggested-by: Michael Trimarchi <michael@amarulasolutions.com>
Reported-by: Tim Harvey <tharvey@gateworks.com>
Tested-by: Fabio Estevam <festevam@denx.de>
This commit is contained in:
Yasuharu Shibata 2024-04-16 09:26:24 +09:00 • committed by Tom Rini
parent cab7867cff
commit beac958153
1 changed files with 1 additions and 3 deletions

4
net/wget.c
View file

@ -404,9 +404,7 @@ static void wget_handler(uchar *pkt, u16 dport,
}
next_data_seq_num = tcp_seq_num + len;
if (tcp_seq_num >= initial_data_seq_num &&
store_block(pkt, tcp_seq_num - initial_data_seq_num,
len) != 0) {
if (store_block(pkt, tcp_seq_num - initial_data_seq_num, len) != 0) {
wget_fail("wget: store error\n",
tcp_seq_num, tcp_ack_num, action);
net_set_state(NETLOOP_FAIL);