#VU115654 Input validation error in Linux kernel - CVE-2025-39798
Published: September 16, 2025
Vulnerability identifier: #VU115654
Vulnerability risk: Low
CVSSv4.0: 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-2025-39798
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the nfs4_server_capabilities() function in fs/nfs/nfs4proc.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/175afda783e38c0660f2afc0602dd9c83d4e7ee1
- https://git.kernel.org/stable/c/3924dab90816d0c683a110628ef386f83a9d1e13
- https://git.kernel.org/stable/c/50e0fd0050e510e749e1fdd1d7158e419ff8f3b9
- https://git.kernel.org/stable/c/73fcb101bb3eb2a552d7856a476b2c0bc3b5ef9e
- https://git.kernel.org/stable/c/816a6f60c2c2b679a33fa4276442bafd11473651
- https://git.kernel.org/stable/c/95eb0d97ab98a10e966125c1f274e7d0fc0992b3
- https://git.kernel.org/stable/c/987c20428f067c1c7f29ed0a2bd8c63fa74b1c2c
- https://git.kernel.org/stable/c/a8ffee4abd8ec9d7a64d394e0306ae64ba139fd2
- https://git.kernel.org/stable/c/b01f21cacde9f2878492cf318fee61bf4ccad323