Hello Dexuan, wonderful, thanks;
Eric's proposed patch confuses me on one point:
- if (rcu_access_pointer(sk->sk_filter) &&
- udp_lib_checksum_complete(skb))
+ if (udp_lib_checksum_complete(skb))
goto csum_error;
Do you know why the rcu_access_pointer() call has been removed?
Thanks
** Information type changed from Private Security to Public Security
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https://bugs.launchpad.net/bugs/1888715
Title:
UDP data corruption caused by buggy udp_recvmsg() ->
skb_copy_and_csum_datagram_msg()
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