Re: [Linux-kernel-mentees][PATCH] bluetooth: hci_h5: close serdev device and free hu in h5_close

From: Marcel Holtmann
Date: Thu Oct 01 2020 - 03:08:27 EST


Hi Anant,

> When h5_close() gets called, the memory allocated for the hu gets
> freed only if hu->serdev doesn't exist. This leads to a memory leak.
> So when h5_close() is requested, close the serdev device instance and
> free the memory allocated to the hu entirely instead.
>
> Fixes: https://syzkaller.appspot.com/bug?extid=6ce141c55b2f7aafd1c4
> Reported-by: syzbot+6ce141c55b2f7aafd1c4@xxxxxxxxxxxxxxxxxxxxxxxxx
> Tested-by: syzbot+6ce141c55b2f7aafd1c4@xxxxxxxxxxxxxxxxxxxxxxxxx
> Signed-off-by: Anant Thazhemadam <anant.thazhemadam@xxxxxxxxx>
> ---
> drivers/bluetooth/hci_h5.c | 8 ++++++--
> 1 file changed, 6 insertions(+), 2 deletions(-)

patch has been applied to bluetooth-next tree.

Regards

Marcel