Messages in this thread Patch in this message | | | From | Jiasheng Jiang <> | Subject | [PATCH] net: dsa: qca8k: Add check for skb_copy | Date | Mon, 10 Jul 2023 09:39:07 +0800 |
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Add check for the return value of skb_copy in order to avoid NULL pointer dereference.
Fixes: 2cd548566384 ("net: dsa: qca8k: add support for phy read/write with mgmt Ethernet") Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn> --- drivers/net/dsa/qca/qca8k-8xxx.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/net/dsa/qca/qca8k-8xxx.c b/drivers/net/dsa/qca/qca8k-8xxx.c index f7d7cfb2fd86..09b80644c11b 100644 --- a/drivers/net/dsa/qca/qca8k-8xxx.c +++ b/drivers/net/dsa/qca/qca8k-8xxx.c @@ -588,6 +588,9 @@ qca8k_phy_eth_busy_wait(struct qca8k_mgmt_eth_data *mgmt_eth_data, bool ack; int ret; + if (!skb) + return -ENOMEM; + reinit_completion(&mgmt_eth_data->rw_done); /* Increment seq_num and set it in the copy pkt */ -- 2.25.1
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