CVE-2021-47558

In the Linux kernel, the following vulnerability has been resolved: net:
stmmac: Disable Tx queues when reconfiguring the interface The Tx queues
were not disabled in situations where the driver needed to stop the
interface to apply a new configuration. This could result in a kernel panic
when doing any of the 3 following actions: * reconfiguring the number of
queues (ethtool -L) * reconfiguring the size of the ring buffers (ethtool
-G) * installing/removing an XDP program (ip l set dev ethX xdp) Prevent
the panic by making sure netif_tx_disable is called when stopping an
interface. Without this patch, the following kernel panic can be observed
when doing any of the actions above: Unable to handle kernel paging request
at virtual address ffff80001238d040 […] Call trace:
dwmac4_set_addr+0x8/0x10 dev_hard_start_xmit+0xe4/0x1ac
sch_direct_xmit+0xe8/0x39c __dev_queue_xmit+0x3ec/0xaf0
dev_queue_xmit+0x14/0x20 […] [ end trace 0000000000000002 ]—