CVE-2023-53786

dm flakey: fix a crash with invalid table line

published December 9, 2025

CVSS
—
EPSS
0%
Percentile
13.3
In the wild
Unconfirmed
What it is

In the Linux kernel, the following vulnerability has been resolved:

dm flakey: fix a crash with invalid table line

This command will crash with NULL pointer dereference:

dmsetup create flakey --table \

"0 `blockdev --getsize /dev/ram0` flakey /dev/ram0 0 0 1 2 corrupt_bio_byte 512"

Fix the crash by checking if arg_name is non-NULL before comparing it.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00232 · 13.3th percentile
Published
2025-12-09T00:00Z
EPSS history
Timeline
  • 09 DEC 00:00Z
    dm flakey: fix a crash with invalid table line
    cvelistv5