In the Linux kernel before 5.2.3, set_geometry in drivers/block/floppy.c does not validate the sect and head fields, as demonstrated by an integer overflow and out-of-bounds read. It can be triggered by an unprivileged local user when a floppy disk has been inserted. NOTE: QEMU creates the floppy device by default.
Exploitability
AV:PAC:LPR:NUI:NScope
S:UImpact
C:HI:HA:H6.8/CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H