From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 55F771C07 for ; Wed, 28 Dec 2022 16:06:00 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D0E3EC433EF; Wed, 28 Dec 2022 16:05:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1672243560; bh=GMjRlJ4VUaIUO8A6j8GoFQ8g9yK1+I/uan4v+TAzaCg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=IDzcX92G4mKs00oTh4X7YWqmfnSuAELILbQajt3OciSwug+9yckdwzdNUPaC4Q+Nu wOzANIinlVI3IQavu8fXYC6h22VDXUfVvTzwBnfTFl6NJmff+ARmh9uYDegJt9J9qw f9AXHRze7JSmfvY5VGEIDT9gNz7NEaAfPBhjiDM8= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Yang Yingliang , Luiz Augusto von Dentz , Sasha Levin Subject: [PATCH 6.0 0548/1073] Bluetooth: hci_core: dont call kfree_skb() under spin_lock_irqsave() Date: Wed, 28 Dec 2022 15:35:36 +0100 Message-Id: <20221228144342.939454594@linuxfoundation.org> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20221228144328.162723588@linuxfoundation.org> References: <20221228144328.162723588@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Yang Yingliang [ Upstream commit 39c1eb6fcbae8ce9bb71b2ac5cb609355a2b181b ] It is not allowed to call kfree_skb() from hardware interrupt context or with interrupts being disabled. So replace kfree_skb() with dev_kfree_skb_irq() under spin_lock_irqsave(). Fixes: 9238f36a5a50 ("Bluetooth: Add request cmd_complete and cmd_status functions") Signed-off-by: Yang Yingliang Signed-off-by: Luiz Augusto von Dentz Signed-off-by: Sasha Levin --- net/bluetooth/hci_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index 995d950872af..9f8b49ff2d33 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -3978,7 +3978,7 @@ void hci_req_cmd_complete(struct hci_dev *hdev, u16 opcode, u8 status, *req_complete_skb = bt_cb(skb)->hci.req_complete_skb; else *req_complete = bt_cb(skb)->hci.req_complete; - kfree_skb(skb); + dev_kfree_skb_irq(skb); } spin_unlock_irqrestore(&hdev->cmd_q.lock, flags); } -- 2.35.1