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 2765C13CFAD; Wed, 24 Apr 2024 05:39:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713937142; cv=none; b=HNB8yljLfes+YZ8OtAnyDSBWKrybuCbrcffLpa9CQ1E/74Nx8fM/89qx5kc8mqyT9Ns6nBtl9by/GpO0ndNIspKJJ/ab/4jzsteVHUaKK18tKZPvqFqId1f344YT+PBxBiXnWtEgl7++wIGOcL3h26I/Yodpa0mvtfwIFkaAz48= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713937142; c=relaxed/simple; bh=ay9Awlh5bevS7aC0s4/0vSKV1IHpC9vfF+b2hfqoGKs=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=Zvr7LaaSapyEsLZIfYtYtlDIO7jkbo4nNWIrPR/B6Xwl5cL2AQ+tbUqEXu9tWYp1RlmEAicVv2d3zNiSZ+2xxjAujMt7EULw5/EM865tUfCFi/7JQPqXdaBbFOiTEE0BbD/YJDHWrfQmFEkYhsIzRbvg6AamTgzY+H6kJnw6XTQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=KJ0uprlH; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="KJ0uprlH" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C500AC113CE; Wed, 24 Apr 2024 05:38:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1713937141; bh=ay9Awlh5bevS7aC0s4/0vSKV1IHpC9vfF+b2hfqoGKs=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=KJ0uprlHown4qsaCkUVlFJjtPPccNrXH7pCXV8H5Qzt+cafh3RjqfLeY62cmJXeyg K6tiWYSizKwv+B8ZCJJqLGIsF44+3sr2RaPel5BkqFcID/rBx7erK+MD8oVql7F2yb jGwUtI8Hl5w+ZKBae+d5Qi6DbeGPr+cOpHJl/4WmSfs6BOlu+JszapSBSTFOM13GKa JWUL9U8AG/k8NHVR/oqRWC6U2jqaac4UfkuBYqE0gQ2eeKxAb3+hhg1zVWYSX5R5D2 5rdm5kc/FIlAKVaDtwpoDkbW0h32XeyO6mCN3KngB/fePp1ZNSdi/V1ILsX1ZiXVA4 rdZUiJKSFx2zw== Message-ID: <39fe27f8-545f-4246-9b18-ab1c50ff8edc@kernel.org> Date: Wed, 24 Apr 2024 07:38:55 +0200 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] nfc: pn533: Fix null-ptr-deref in pn533_recv_frame() To: Yuxuan Hu <20373622@buaa.edu.cn>, gregkh@linuxfoundation.org, johan@kernel.org, davem@davemloft.net, u.kleine-koenig@pengutronix.de, Jonathan.Cameron@huawei.com, francesco.dolcini@toradex.com, jirislaby@kernel.org Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, baijiaju1990@gmail.com, sy2239101@buaa.edu.cn, Yuxuan Hu References: <20240422080408.1639247-1-20373622@buaa.edu.cn> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 22/04/2024 10:04, Yuxuan Hu wrote: > ? kthread_blkcg+0xa0/0xa0 > ret_from_fork_asm+0x11/0x20 > > Modules linked in: nfcvirt(O) pn533(O) nfc(O) ki_coverage(O) [last unloaded: pn533(O)] > CR2: 0000000000000014 > ---[ end trace 0000000000000000 ]--- > RIP: 0010:pn533_recv_frame+0x18a/0x1e0 [pn533] > Code: 43 ff ff ff 48 8b bb 80 02 00 00 48 c7 c6 0b 02 46 c0 31 c0 e8 97 64 4f c4 48 83 bb b0 01 00 00 00 74 3f 48 8b 83 b0 01 00 00 40 14 fb ff ff ff 48 8b 83 b0 01 00 00 48 85 c0 0f 85 3b ff ff > RSP: 0018:ffff88802665fc68 EFLAGS: 00010246 > RAX: 0000000000000000 RBX: ffff88804a13b800 RCX: ad381de3b3cd5e00 > RDX: 1ffff11004ccbf38 RSI: 0000000000000008 RDI: ffff88802665f9e0 > RBP: ffff88804fb25000 R08: ffff88802665f9e7 R09: 1ffff11004ccbf3c > R10: dffffc0000000000 R11: ffffed1004ccbf3d R12: 0000000000001950 > R13: ffff88804ab80000 R14: ffff888021d22640 R15: ffff88802665fcb0 > FS: 0000000000000000(0000) GS:ffff88806d200000(0000) knlGS:0000000000000000 > CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > CR2: 0000000000000014 CR3: 0000000004ebc000 CR4: 00000000000006f0 > > Signed-off-by: Yuxuan Hu Also, please provide here Fixes, Cc:stable and Closes tags. Best regards, Krzysztof