CVE-2016-2543: Linux Kernel

Medium severity, CVSS 6.2. EPSS: 0.5% chance of exploitation in the next 30 days.

The snd_seq_ioctl_remove_events function in sound/core/seq/seq_clientmgr.c in the Linux kernel before 4.4.1 does not verify FIFO assignment before proceeding with FIFO clearing, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) via a crafted ioctl call.

Affected products

• Linux Linux Kernel: up to and including 4.4

Published 2016-04-27. Last modified 2026-06-17.