{"id":"DEBIAN-CVE-2026-64329","details":"In the Linux kernel, the following vulnerability has been resolved:  usb: typec: ucsi: ccg: Fix use-after-free of ucsi on remove  The threaded IRQ handler ccg_irq_handler() calls ucsi_notify_common(), which on a connector-change event calls ucsi_connector_change() and schedules connector work.  In ucsi_ccg_remove(), ucsi_destroy() frees uc-\u003eucsi (kfree) before free_irq() is called, so a handler invocation already in flight may access the freed object after ucsi_destroy().    CPU 0 (remove)            | CPU 1 (threaded IRQ)     ucsi_destroy(uc-\u003eucsi)  |   ccg_irq_handler()       kfree(ucsi) // FREE   |     ucsi_notify_common(uc-\u003eucsi) // USE  Move free_irq() before ucsi_destroy() in the remove path.  It is kept after ucsi_unregister(): ucsi_unregister() cancels connector work whose handler issues GET_CONNECTOR_STATUS through ucsi_send_command_common(), which waits for a completion that is signalled from the IRQ handler, so the IRQ must stay active until that work has been cancelled.  The probe error path already orders free_irq() before ucsi_destroy().  This bug was found by static analysis.","modified":"2026-09-05T09:00:25.182094782Z","published":"2026-07-25T10:17:14.540Z","upstream":["CVE-2026-64329"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-64329"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.180-1"}]}],"versions":["6.1.106-1","6.1.106-2","6.1.106-3","6.1.112-1","6.1.115-1","6.1.119-1","6.1.123-1","6.1.124-1","6.1.128-1","6.1.129-1","6.1.133-1","6.1.135-1","6.1.137-1","6.1.139-1","6.1.140-1","6.1.147-1","6.1.148-1","6.1.153-1","6.1.158-1","6.1.159-1","6.1.162-1","6.1.164-1","6.1.170-1","6.1.170-2","6.1.170-3","6.1.172-1","6.1.174-1","6.1.176-1","6.1.177-1","6.1.27-1","6.1.37-1","6.1.38-1","6.1.38-2","6.1.38-2~bpo11+1","6.1.38-3","6.1.38-4","6.1.38-4~bpo11+1","6.1.52-1","6.1.55-1","6.1.55-1~bpo11+1","6.1.64-1","6.1.66-1","6.1.67-1","6.1.69-1","6.1.69-1~bpo11+1","6.1.76-1","6.1.76-1~bpo11+1","6.1.82-1","6.1.85-1","6.1.90-1","6.1.90-1~bpo11+1","6.1.94-1","6.1.94-1~bpo11+1","6.1.98-1","6.1.99-1"],"ecosystem_specific":{"urgency":"not 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