CVE-2025-40112

Vulnerability overview

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 fa...

Affected product and versions

Product

Linux

Affected versions

>= 7ae3aaf53f1695877ccd5ebbc49ea65991e41f1e < 05440320ea3e249d5f984918f2bf51210c1a7c03, >= 7ae3aaf53f1695877ccd5ebbc49ea65991e41f1e < 7823fc4d8ab5e57f8db7806ff2530c03c166c4bb, >= 7ae3aaf53f1695877ccd5ebbc49ea65991e41f1e < 37547d8e6eba87507279ee3dfddfd9dc46335454, >= 7ae3aaf53f1695877ccd5ebbc49ea65991e41f1e < a365ee556e45f780ee322b349a06efdad0c1458f, >= 7ae3aaf53f1695877ccd5ebbc49ea65991e41f1e < 8cdeb5e482d3fdce7e825444b6ca3865e24c0228, >= 7ae3aaf53f1695877ccd5ebbc49ea65991e41f1e < a90ce516a73dbe087f9bf3dbf311301a58d125c6, >= 7ae3aaf53f1695877ccd5ebbc49ea65991e41f1e < 088c5098ec6d6b0396edfbf3dad3e81de8469c1c, >= 7ae3aaf53f1695877ccd5ebbc49ea65991e41f1e < 0b67c8fc10b13a9090340c5f8a37d308f4e1571c, >= bfc8be6593097cb074d3912ba2f27565cfbb7d6e, >= a15859f9d8396cce7c55ccdb7e75f70f14cbc349, >= 4.4.34 < 4.5, >= 4.8.10 < 4.9, >= 4.9

Fixed versions

No verified fixed-version field is available yet

Technical data

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE

Not available