CVE - CVE-2021-47173

CVE-ID
CVE-2021-47173	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
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: [<ffffffff82b8e822>] kmalloc include/linux/slab.h:554 [inline] [<ffffffff82b8e822>] kzalloc include/linux/slab.h:684 [inline] [<ffffffff82b8e822>] usb_alloc_dev+0x32/0x450 drivers/usb/core/usb.c:582 [<ffffffff82b98441>] hub_port_connect drivers/usb/core/hub.c:5129 [inline] [<ffffffff82b98441>] hub_port_connect_change drivers/usb/core/hub.c:5363 [inline] [<ffffffff82b98441>] port_event drivers/usb/core/hub.c:5509 [inline] [<ffffffff82b98441>] hub_event+0x1171/0x20c0 drivers/usb/core/hub.c:5591 [<ffffffff81259229>] process_one_work+0x2c9/0x600 kernel/workqueue.c:2275 [<ffffffff81259b19>] worker_thread+0x59/0x5d0 kernel/workqueue.c:2421 [<ffffffff81261228>] kthread+0x178/0x1b0 kernel/kthread.c:292 [<ffffffff8100227f>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/36b5ff1db1a4ef4fdbc2bae364344279f033ad88 URL:https://git.kernel.org/stable/c/36b5ff1db1a4ef4fdbc2bae364344279f033ad88 MISC:https://git.kernel.org/stable/c/386918878ce4cd676e4607233866e03c9399a46a URL:https://git.kernel.org/stable/c/386918878ce4cd676e4607233866e03c9399a46a MISC:https://git.kernel.org/stable/c/5394ae9d8c7961dd93807fdf1b12a1dde96b0a55 URL:https://git.kernel.org/stable/c/5394ae9d8c7961dd93807fdf1b12a1dde96b0a55 MISC:https://git.kernel.org/stable/c/5f46b2410db2c8f26b8bb91b40deebf4ec184391 URL:https://git.kernel.org/stable/c/5f46b2410db2c8f26b8bb91b40deebf4ec184391 MISC:https://git.kernel.org/stable/c/7889c70e6173ef358f3cd7578db127a489035a42 URL:https://git.kernel.org/stable/c/7889c70e6173ef358f3cd7578db127a489035a42 MISC:https://git.kernel.org/stable/c/a3c3face38cb49932c62adcc1289914f1c742096 URL:https://git.kernel.org/stable/c/a3c3face38cb49932c62adcc1289914f1c742096 MISC:https://git.kernel.org/stable/c/bcb30cc8f8befcbdbcf7a016e4dfd4747c54a364 URL:https://git.kernel.org/stable/c/bcb30cc8f8befcbdbcf7a016e4dfd4747c54a364 MISC:https://git.kernel.org/stable/c/dcb4b8ad6a448532d8b681b5d1a7036210b622de URL:https://git.kernel.org/stable/c/dcb4b8ad6a448532d8b681b5d1a7036210b622de
Assigning CNA
kernel.org
Date Record Created
20240325	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240325)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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