SB20251230175 - Use-after-free in Linux kernel md driver
Published: December 30, 2025 Updated: December 31, 2025
Security Bulletin ID
SB20251230175
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-2022-50889)
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_integrity_dtr() function in drivers/md/dm-integrity.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/792e51aac376cfb5bd527c2a30826223b82dd177
- https://git.kernel.org/stable/c/9215b25f2e105032114e9b92c9783a2a84ee8af9
- https://git.kernel.org/stable/c/9f8e1e54a3a424c6c4fb8742e094789d3ec91e42
- https://git.kernel.org/stable/c/a506b5c92757b034034ef683e667bffc456c600b
- https://git.kernel.org/stable/c/b6c93cd61afab061d80cc842333abca97b289774
- https://git.kernel.org/stable/c/f50cb2cbabd6c4a60add93d72451728f86e4791c
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.163
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.87
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.229
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.18
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2