{"id":"CVE-2021-47173","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nmisc/uss720: fix memory leak in uss720_probe\n\nuss720_probe forgets to decrease the refcount of usbdev in uss720_probe.\nFix this by decreasing the refcount of usbdev by usb_put_dev.\n\nBUG: memory leak\nunreferenced object 0xffff888101113800 (size 2048):\n  comm \"kworker/0:1\", pid 7, jiffies 4294956777 (age 28.870s)\n  hex dump (first 32 bytes):\n    ff ff ff ff 31 00 00 00 00 00 00 00 00 00 00 00  ....1...........\n    00 00 00 00 00 00 00 00 00 00 00 00 03 00 00 00  ................\n  backtrace:\n    [\u003cffffffff82b8e822\u003e] kmalloc include/linux/slab.h:554 [inline]\n    [\u003cffffffff82b8e822\u003e] kzalloc include/linux/slab.h:684 [inline]\n    [\u003cffffffff82b8e822\u003e] usb_alloc_dev+0x32/0x450 drivers/usb/core/usb.c:582\n    [\u003cffffffff82b98441\u003e] hub_port_connect drivers/usb/core/hub.c:5129 [inline]\n    [\u003cffffffff82b98441\u003e] hub_port_connect_change drivers/usb/core/hub.c:5363 [inline]\n    [\u003cffffffff82b98441\u003e] port_event drivers/usb/core/hub.c:5509 [inline]\n    [\u003cffffffff82b98441\u003e] hub_event+0x1171/0x20c0 drivers/usb/core/hub.c:5591\n    [\u003cffffffff81259229\u003e] process_one_work+0x2c9/0x600 kernel/workqueue.c:2275\n    [\u003cffffffff81259b19\u003e] worker_thread+0x59/0x5d0 kernel/workqueue.c:2421\n    [\u003cffffffff81261228\u003e] kthread+0x178/0x1b0 kernel/kthread.c:292\n    [\u003cffffffff8100227f\u003e] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294","modified":"2026-03-13T05:20:35.845870Z","published":"2024-03-25T10:15:09.010Z","related":["SUSE-SU-2024:1454-1","SUSE-SU-2024:1465-1","SUSE-SU-2024:1489-1","SUSE-SU-2024:1643-1","SUSE-SU-2024:1646-1","SUSE-SU-2024:1870-1"],"references":[{"type":"FIX","url":"https://git.kernel.org/stable/c/7889c70e6173ef358f3cd7578db127a489035a42"},{"type":"FIX","url":"https://git.kernel.org/stable/c/a3c3face38cb49932c62adcc1289914f1c742096"},{"type":"FIX","url":"https://git.kernel.org/stable/c/bcb30cc8f8befcbdbcf7a016e4dfd4747c54a364"},{"type":"FIX","url":"https://git.kernel.org/stable/c/dcb4b8ad6a448532d8b681b5d1a7036210b622de"},{"type":"FIX","url":"https://git.kernel.org/stable/c/36b5ff1db1a4ef4fdbc2bae364344279f033ad88"},{"type":"FIX","url":"https://git.kernel.org/stable/c/386918878ce4cd676e4607233866e03c9399a46a"},{"type":"FIX","url":"https://git.kernel.org/stable/c/5394ae9d8c7961dd93807fdf1b12a1dde96b0a55"},{"type":"FIX","url":"https://git.kernel.org/stable/c/5f46b2410db2c8f26b8bb91b40deebf4ec184391"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"2.6.14"},{"fixed":"4.4.271"}]},{"events":[{"introduced":"4.5"},{"fixed":"4.9.271"}]},{"events":[{"introduced":"4.10"},{"fixed":"4.14.235"}]},{"events":[{"introduced":"4.15"},{"fixed":"4.19.193"}]},{"events":[{"introduced":"4.20"},{"fixed":"5.4.124"}]},{"events":[{"introduced":"5.5"},{"fixed":"5.10.42"}]},{"events":[{"introduced":"5.11"},{"fixed":"5.12.9"}]}],"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-47173.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}