net: hns3: fix use-after-free issue for hclge_add_fd_entry_common()

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When new rule state is TO_ADD or ACTIVE, and there is already a
rule with same location in the fd_rule_list, the new rule will
be freed after modifying the old rule. It may cause user-after-free
issue when access rule again in hclge_add_fd_entry_common().

Fixes: fc4243b8de ("net: hns3: refactor flow director configuration")
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Jian Shen 2021-03-29 11:57:46 +08:00 • committed by David S. Miller

parent 989f7178b0

commit 64ff58fa3b

1 changed files with 1 additions and 1 deletions

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drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c

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