sound/core/seq_device.c in the Linux kernel before 4.13.4 allows local users to cause a denial of service (snd_rawmidi_dev_seq_free use-after-free and system crash) or possibly have unspecified other impact via a crafted USB device.
https://usn.ubuntu.com/3619-2/
https://usn.ubuntu.com/3619-1/
https://groups.google.com/d/msg/syzkaller/kuZzDHGkQu8/5du20rZEAAAJ
https://github.com/torvalds/linux/commit/fc27fe7e8deef2f37cba3f2be2d52b6ca5eb9d57
Source: Mitre, NVD
Published: 2017-11-04
Updated: 2025-04-20
Base Score: 7.2
Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C
Severity: High
Base Score: 6.6
Vector: CVSS:3.0/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Severity: Medium
EPSS: 0.00047