SB2025102333 - Use-after-free in Linux kernel md driver
Published: October 23, 2025 Updated: October 26, 2025
Security Bulletin ID
SB2025102333
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-2022-50563)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the __pool_destroy() function in drivers/md/dm-thin.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/34cd15d83b7206188d440b29b68084fcafde9395
- https://git.kernel.org/stable/c/34fe9c2251f19786a6689149a6212c6c0de1d63b
- https://git.kernel.org/stable/c/550a4fac7ecfee5bac6a0dd772456ca62fb72f46
- https://git.kernel.org/stable/c/7ae6aa649394e1e7f6dafb55ce0d578c0572a280
- https://git.kernel.org/stable/c/7ee059d06a5d3c15465959e0472993e80fbe4e81
- https://git.kernel.org/stable/c/88430ebcbc0ec637b710b947738839848c20feff
- https://git.kernel.org/stable/c/94e231c9d6f2648d2f1f68e7f476e050ee0a6159
- https://git.kernel.org/stable/c/d9971fa4d8bde63d49c743c1b32d12fbbd3a30bd
- https://git.kernel.org/stable/c/e8b8e0d2bbf7d1172c4f435621418e29ee408d46
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.270