CVE-2018-7755
kernel: Information exposure in fd_locked_ioctl function in drivers/block/floppy.c
Severity
LowRed Hat Product Security
CVSS 3.0
Review impact separately from score.
Published · March 8, 2018
Updated · June 28, 2026
Description
An issue was discovered in the fd_locked_ioctl function in drivers/block/floppy.c in the Linux kernel. The floppy driver will copy a kernel pointer to user memory in response to the FDGETPRM ioctl. An attacker can send the FDGETPRM ioctl and use the obtained kernel pointer to discover the location of kernel code and data and bypass kernel security protections such as KASLR.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.0 · 5.9CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor