When processing AUTH + COOKIE-ECHO packets, if skb_clone() fails
due to memory pressure, chunk->auth_chunk is NULL. The original
code still sets chunk->auth = 1 and continues, leaving the
COOKIE-ECHO to be processed without a valid auth_chunk for
deferred verification.
Discard the AUTH chunk early via pdiscard when skb_clone() fails,
so that the receive loop can continue processing remaining chunks
in the inqueue instead of stalling the entire packet.
Signed-off-by: Qing Luo <luoqing@kylinos.cn>
Acked-by: Xin Long <lucien.xin@gmail.com>
Link: https://patch.msgid.link/20260723061107.384106-1-l1138897701@163.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
9ae7ed101c