An issue was discovered in the Linux kernel before 5.1.8. There is a double-free caused by a malicious USB device in the drivers/usb/misc/rio500.c driver.
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.html
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.html
http://www.openwall.com/lists/oss-security/2019/08/20/2
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1.8
https://lists.debian.org/debian-lts-announce/2019/09/msg00014.html
https://lists.debian.org/debian-lts-announce/2019/09/msg00015.html
https://lists.debian.org/debian-lts-announce/2019/09/msg00025.html
https://security.netapp.com/advisory/ntap-20190905-0002/
https://syzkaller.appspot.com/bug?id=64aa96c96f594a77eb8d945df21ec76dd35573b3
https://usn.ubuntu.com/4115-1/
Source: MITRE
Published: 2019-08-19
Updated: 2019-09-03
Type: CWE-415
Base Score: 4.9
Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C
Impact Score: 6.9
Exploitability Score: 3.9
Severity: MEDIUM
Base Score: 4.6
Vector: CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Impact Score: 3.6
Exploitability Score: 0.9
Severity: MEDIUM