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Age	Commit message (Collapse)	Author
13 days	thunderbolt: Disable CL states for the Anker Prime TB5 dock	Kurt Lieber
	The Anker Prime TB5 dock identifies itself in the DROM as 01ea:83b5. Its router config space is an Intel Barlow Ridge 80G hub (8087:5786). The upstream lane adapter advertises CL0s, CL1, and CL2. With CLx left enabled, TMU uni-directional LowRes setup fails with -ENOTCONN, the USB3 and DisplayPort tunnels are aborted, and the router reconnects in a loop. Loading thunderbolt with clx=0 keeps the link up on this machine. Match the DROM id together with the Barlow Ridge hub id and disable CL states for this dock only. QUIRK_NO_CLX takes the same early-out as the module parameter, without disabling CLx for every other router. Closes: https://lore.kernel.org/linux-usb/SJ0PR15MB4696D491504DB667AA8E0617A3812@SJ0PR15MB4696.namprd15.prod.outlook.com/ Cc: stable@vger.kernel.org Assisted-by: LLM Signed-off-by: Kurt Lieber <kurt@lieber.org> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2026-09-02	thunderbolt: Fix NULL dereference in tb_remove_work()grafted	Fedor Pchelkin
	There is a slight race between tb_remove_work() and tb_domain_remove() which leads to dereferencing a NULL tb->root_switch pointer inside tb_free_unplugged_xdomains(): Thread A Thread B tb_remove_work() tb_domain_remove() mutex_lock(&tb->lock) tb_stop() /* doesn't cancel a running callback / cancel_delayed_work(&tcm->remove_work) ... tb_switch_remove(tb->root_switch) tb->root_switch = NULL mutex_unlock(&tb->lock) mutex_lock(&tb->lock) ... / without checking ->root_switch */ tb_free_unplugged_xdomains(tb->root_switch) mutex_unlock(&tb->lock) Commit a8937f35cf39 ("thunderbolt: Remove XDomain from the bus without holding tb->lock") doesn't seem right to move tb_free_unplugged_xdomains() out of the &tb->lock section and the check for tb->root_switch, in particular. It states: For this reason separate removing the XDomain from the topology data structures (where we need the lock) from unregistering the device from the bus (where remove callbacks of the drivers are being called). tb_free_unplugged_xdomains() belongs to the former group of functions requiring the lock. And it also calls tb_xdomain_remove() which should only be called with &tb->lock held. Found by Linux Verification Center (linuxtesting.org) with Svace static analysis tool. Fixes: a8937f35cf39 ("thunderbolt: Remove XDomain from the bus without holding tb->lock") Cc: stable@vger.kernel.org Signed-off-by: Fedor Pchelkin <pchelkin@ispras.ru> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>