linux-kernel - Re: [PATCH][next] Bluetooth: virtio_bt: add missing null pointer check on alloc

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-Id: <4EC34C12-20A9-4EB2-B699-332F0CE3A38F@holtmann.org>
Date:   Sun, 11 Apr 2021 13:56:52 +0200
From:   Marcel Holtmann <marcel@...tmann.org>
To:     Colin King <colin.king@...onical.com>
Cc:     Johan Hedberg <johan.hedberg@...il.com>,
        Luiz Augusto von Dentz <luiz.dentz@...il.com>,
        linux-bluetooth@...r.kernel.org, kernel-janitors@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH][next] Bluetooth: virtio_bt: add missing null pointer
 check on alloc_skb call return

Hi Colin,

> The call to alloc_skb with the GFP_KERNEL flag can return a null sk_buff
> pointer, so add a null check to avoid any null pointer deference issues.
> 
> Addresses-Coverity: ("Dereference null return value")
> Fixes: afd2daa26c7a ("Bluetooth: Add support for virtio transport driver")
> Signed-off-by: Colin Ian King <colin.king@...onical.com>
> ---
> drivers/bluetooth/virtio_bt.c | 2 ++
> 1 file changed, 2 insertions(+)

patch has been applied to bluetooth-next tree.

Regards

Marcel