Re: [PATCH] NFC: st21nfca: fix double free

[David Miller]

From: Pan Bian <bianpan2016@xxxxxxx>
Date: Thu,  7 Nov 2019 09:33:20 +0800

> The variable nfcid_skb is not changed in the callee nfc_hci_get_param()
> if error occurs. Consequently, the freed variable nfcid_skb will be
> freed again, resulting in a double free bug. Set nfcid_skb to NULL after
> releasing it to fix the bug.
> 
> Signed-off-by: Pan Bian <bianpan2016@xxxxxxx>

Applied and queued up for -stable.