Improper Initialization in Linux kernel - CVE-2025-21712
Published: February 27, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU105061
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-21712
CWE-ID: CWE-665
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper initialization within the md_seq_show() function in drivers/md/md.c, within the bitmap_get_stats() function in drivers/md/md-bitmap.c. A local user can perform a denial of service (DoS) attack.
How to mitigate CVE-2025-21712
Install update from vendor's website.
Sources
- https://git.kernel.org/stable/c/237e19519c8ff6949f0ef57c4a0243f5b2b0fa18
- https://git.kernel.org/stable/c/4e9316eee3885bfb311b4759513f2ccf37891c09
- https://git.kernel.org/stable/c/8d28d0ddb986f56920ac97ae704cc3340a699a30
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.130
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13.2
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.14
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.80