Hi Greg, On Thu, May 27, 2021 at 10:14:59PM +0200, Marcel Holtmann wrote: > Hi Greg, > > > In the cleanup routine for failed initialization of HCI device, > > the flush_work(&hdev->rx_work) need to be finished before the > > flush_work(&hdev->cmd_work). Otherwise, the hci_rx_work() can > > possibly invoke new cmd_work and cause a bug, like double free, > > in late processings. > > > > This was assigned CVE-2021-3564. > > > > This patch reorder the flush_work() to fix this bug. > > > > Cc: Marcel Holtmann <marcel@xxxxxxxxxxxx> > > Cc: Johan Hedberg <johan.hedberg@xxxxxxxxx> > > Cc: Luiz Augusto von Dentz <luiz.dentz@xxxxxxxxx> > > Cc: "David S. Miller" <davem@xxxxxxxxxxxxx> > > Cc: Jakub Kicinski <kuba@xxxxxxxxxx> > > Cc: linux-bluetooth@xxxxxxxxxxxxxxx > > Cc: netdev@xxxxxxxxxxxxxxx > > Cc: linux-kernel@xxxxxxxxxxxxxxx > > Signed-off-by: Lin Ma <linma@xxxxxxxxxx> > > Signed-off-by: Hao Xiong <mart1n@xxxxxxxxxx> > > Cc: stable <stable@xxxxxxxxxxxxxxx> > > Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> > > --- > > net/bluetooth/hci_core.c | 7 ++++++- > > 1 file changed, 6 insertions(+), 1 deletion(-) > > patch has been applied to bluetooth-stable tree. Can you queue this one as well for the stable series? It is 6a137caec23aeb9e036cdfd8a46dd8a366460e5d commit upstream and in 5.13-rc5. Regards, Salvatore
