Integer overflow in Linux kernel - CVE-2025-21736
Published: February 27, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU105049
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-21736
CWE-ID: CWE-190
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 execute arbitrary code.
The vulnerability exists due to integer overflow within the nilfs_fiemap() function in fs/nilfs2/inode.c. A local user can execute arbitrary code.
How to mitigate CVE-2025-21736
Install update from vendor's website.
Sources
- https://git.kernel.org/stable/c/250423300b4b0335918be187ef3cade248c06e6a
- https://git.kernel.org/stable/c/6438ef381c183444f7f9d1de18f22661cba1e946
- https://git.kernel.org/stable/c/b9495a9109abc31d3170f7aad7d48aa64610a1a2
- https://git.kernel.org/stable/c/f2bd0f1ab47822fe5bd699c8458b896c4b2edea1
- https://git.kernel.org/stable/c/f3d80f34f58445355fa27b9579a449fb186aa64e
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.129