SB20251230148 - Use-after-free in Linux kernel md driver
Published: December 30, 2025 Updated: December 31, 2025
Security Bulletin ID
SB20251230148
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2023-54324)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the dm_table_create(), dm_get_device(), dm_set_device_limits() and dm_put_device() functions in drivers/md/dm-table.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/38f6e5ae5d9ff4a4050ea6f7b543d5d5a4e087cf
- https://git.kernel.org/stable/c/dbf1a719850577bb51fc7512a3972994b797a17b
- https://git.kernel.org/stable/c/f6007dce0cd35d634d9be91ef3515a6385dcee16
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.56
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.5
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6