net/sched: cls_flower: fix only mask bit check in the validate_ct_state
[ Upstream commit afa536d8 ] The ct_state validate should not only check the mask bit and also check mask_bit & key_bit.. For the +new+est case example, The 'new' and 'est' bits should be set in both state_mask and state flags. Or the -new-est case also will be reject by kernel. When Openvswitch with two flows ct_state=+trk+new,action=commit,forward ct_state=+trk+est,action=forward A packet go through the kernel and the contrack state is invalid, The ct_state will be +trk-inv. Upcall to the ovs-vswitchd, the finally dp action will be drop with -new-est+trk. Fixes: 1bcc51ac ("net/sched: cls_flower: Reject invalid ct_state flags rules") Fixes: 3aed8b63 ("net/sched: cls_flower: validate ct_state for invalid and reply flags") Signed-off-by:wenxu <wenxu@ucloud.cn> Reviewed-by:
Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net> Signed-off-by:
Sasha Levin <sashal@kernel.org>
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6233c2d0
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