Re: [PATCH net] net: dsa: clear devlink port type before unregistering slave netdevs

2021-01-12 Thread Jakub Kicinski
On Tue, 12 Jan 2021 10:49:21 -0800 Florian Fainelli wrote: > On 1/11/21 4:48 PM, Vladimir Oltean wrote: > > From: Vladimir Oltean > > > > Florian reported a use-after-free bug in devlink_nl_port_fill found with > > KASAN: > > > > (devlink_nl_port_fill) > > (devlink_port_notify) > > (devlink_port

Re: [PATCH net] net: dsa: clear devlink port type before unregistering slave netdevs

2021-01-12 Thread Florian Fainelli
On 1/11/21 4:48 PM, Vladimir Oltean wrote: > From: Vladimir Oltean > > Florian reported a use-after-free bug in devlink_nl_port_fill found with > KASAN: > > (devlink_nl_port_fill) > (devlink_port_notify) > (devlink_port_unregister) > (dsa_switch_teardown.part.3) > (dsa_tree_teardown_switches) >

[PATCH net] net: dsa: clear devlink port type before unregistering slave netdevs

2021-01-11 Thread Vladimir Oltean
From: Vladimir Oltean Florian reported a use-after-free bug in devlink_nl_port_fill found with KASAN: (devlink_nl_port_fill) (devlink_port_notify) (devlink_port_unregister) (dsa_switch_teardown.part.3) (dsa_tree_teardown_switches) (dsa_unregister_switch) (bcm_sf2_sw_remove) (platform_remove) (de