{"id":"DEBIAN-CVE-2021-47173","details":"In the Linux kernel, the following vulnerability has been resolved:  misc/uss720: fix memory leak in uss720_probe  uss720_probe forgets to decrease the refcount of usbdev in uss720_probe. Fix this by decreasing the refcount of usbdev by usb_put_dev.  BUG: memory leak unreferenced object 0xffff888101113800 (size 2048):   comm \"kworker/0:1\", pid 7, jiffies 4294956777 (age 28.870s)   hex dump (first 32 bytes):     ff ff ff ff 31 00 00 00 00 00 00 00 00 00 00 00  ....1...........     00 00 00 00 00 00 00 00 00 00 00 00 03 00 00 00  ................   backtrace:     [\u003cffffffff82b8e822\u003e] kmalloc include/linux/slab.h:554 [inline]     [\u003cffffffff82b8e822\u003e] kzalloc include/linux/slab.h:684 [inline]     [\u003cffffffff82b8e822\u003e] usb_alloc_dev+0x32/0x450 drivers/usb/core/usb.c:582     [\u003cffffffff82b98441\u003e] hub_port_connect drivers/usb/core/hub.c:5129 [inline]     [\u003cffffffff82b98441\u003e] hub_port_connect_change drivers/usb/core/hub.c:5363 [inline]     [\u003cffffffff82b98441\u003e] port_event drivers/usb/core/hub.c:5509 [inline]     [\u003cffffffff82b98441\u003e] hub_event+0x1171/0x20c0 drivers/usb/core/hub.c:5591     [\u003cffffffff81259229\u003e] process_one_work+0x2c9/0x600 kernel/workqueue.c:2275     [\u003cffffffff81259b19\u003e] worker_thread+0x59/0x5d0 kernel/workqueue.c:2421     [\u003cffffffff81261228\u003e] kthread+0x178/0x1b0 kernel/kthread.c:292     [\u003cffffffff8100227f\u003e] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294","modified":"2026-09-15T09:02:35.408971881Z","published":"2024-03-25T10:15:09.010Z","upstream":["CVE-2021-47173"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2021-47173"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.14.6-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-47173.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.14.6-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-47173.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.14.6-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-47173.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}