The Linux kernel 4.15 has a Buffer Overflow via an SNDRV_SEQ_IOCTL_SET_CLIENT_POOL ioctl write operation to /dev/snd/seq by a local user.
3.13.0-161.2114.4.0-1022.224.4.0-127.153~14.04.14.4.0-127.1534.4.0-1060.694.15.0-1013.13~16.04.24.15.0-1014.14~16.04.14.15.0-24.26~16.04.14.4.0-1026.314.4.0-1090.98Exploitability
AV:LAC:LPR:LUI:NScope
S:UImpact
C:HI:HA:HCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H