In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
power: supply: bq256xx: drain usb_work before freeing the charger<\/p>\n
The USB-PHY notifier queues usb_work, whose handler calls
\npower_supply_changed(bq->charger). The reset devm action only unregisters
\nthe notifier and was registered before the power supplies, so devm frees
\nbq->charger on unwind before the action runs; a usb_work still queued can
\nthen dereference it.<\/p>\n
Register the reset action after the power supplies, so it unregisters
\nthe notifiers and drains usb_work before the supplies are released.
\nInitialize usb_work and obtain the PHY references before registering
\nthe notifiers, so the worker cannot run before the supplies exist.<\/p>\n
Found by static analysis.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
power: supply: bq256xx: drain usb_work before freeing the charger<\/p>\n
The USB-PHY notifier queues usb_work, whose handler calls
\npower_<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-21396","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/21396","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln"}],"about":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/types\/vuln"}],"wp:attachment":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=21396"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=21396"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=21396"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}