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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2025-40112 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: sparc: fix accurate exception reporting in copy_{from_to}_user for Niagara The referenced commit introduced exception handlers on user-space memory references in copy_from_user and copy_to_user. These handlers return from the respective function and calculate the remaining bytes left to copy using the current register contents. This commit fixes a couple of bad calculations and a broken epilogue in the exception handlers. This will prevent crashes and ensure correct return values of copy_from_user and copy_to_user in the faulting case. The behaviour of memcpy stays unchanged.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/05440320ea3e249d5f984918f2bf51210c1a7c03 kernel.org
https://git.kernel.org/stable/c/088c5098ec6d6b0396edfbf3dad3e81de8469c1c kernel.org
https://git.kernel.org/stable/c/0b67c8fc10b13a9090340c5f8a37d308f4e1571c kernel.org
https://git.kernel.org/stable/c/37547d8e6eba87507279ee3dfddfd9dc46335454 kernel.org
https://git.kernel.org/stable/c/7823fc4d8ab5e57f8db7806ff2530c03c166c4bb kernel.org
https://git.kernel.org/stable/c/8cdeb5e482d3fdce7e825444b6ca3865e24c0228 kernel.org
https://git.kernel.org/stable/c/a365ee556e45f780ee322b349a06efdad0c1458f kernel.org
https://git.kernel.org/stable/c/a90ce516a73dbe087f9bf3dbf311301a58d125c6 kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2025-40112
NVD Published Date:
11/12/2025
NVD Last Modified:
11/12/2025
Source:
kernel.org