The hashbin_delete function in net/irda/irqueue.c in the Linux kernel before 4.9.13 improperly manages lock dropping, which allows local users to cause a denial of service (deadlock) via crafted operations on IrDA devices.
http://www.debian.org/security/2017/dsa-3804
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.13
http://www.openwall.com/lists/oss-security/2017/02/28/4
http://www.securityfocus.com/bid/96483
https://github.com/torvalds/linux/commit/4c03b862b12f980456f9de92db6d508a4999b788
Source: MITRE
Published: 2017-03-01
Updated: 2019-10-03
Type: NVD-CWE-noinfo
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: 5.5
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Impact Score: 3.6
Exploitability Score: 1.8
Severity: MEDIUM