cbcvebase.
CVE-2025-40112
published 2025-11-12

CVE-2025-40112: In the Linux kernel, the following vulnerability has been resolved: sparc: fix accurate exception reporting in copy_{from_to}_user for Niagara The referenced…

PriorityP338high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.15%
5.1th percentile
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.

Affected

34 ranges· showing 25
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.158-1 (bookworm)linux 6.1.158-1 (bookworm)
debianlinux-6.1< linux 6.1.158-1 (bookworm)linux 6.1.158-1 (bookworm)
linuxlinux
linuxlinux
linuxlinux
linuxlinux>= 4.4.34 < 4.54.5
linuxlinux>= 4.8.10 < 4.94.9
linuxlinux>= 7ae3aaf53f1695877ccd5ebbc49ea65991e41f1e < 05440320ea3e249d5f984918f2bf51210c1a7c0305440320ea3e249d5f984918f2bf51210c1a7c03
linuxlinux>= 7ae3aaf53f1695877ccd5ebbc49ea65991e41f1e < 7823fc4d8ab5e57f8db7806ff2530c03c166c4bb7823fc4d8ab5e57f8db7806ff2530c03c166c4bb
linuxlinux>= 7ae3aaf53f1695877ccd5ebbc49ea65991e41f1e < 37547d8e6eba87507279ee3dfddfd9dc4633545437547d8e6eba87507279ee3dfddfd9dc46335454
linuxlinux>= 7ae3aaf53f1695877ccd5ebbc49ea65991e41f1e < a365ee556e45f780ee322b349a06efdad0c1458fa365ee556e45f780ee322b349a06efdad0c1458f
linuxlinux>= 7ae3aaf53f1695877ccd5ebbc49ea65991e41f1e < 8cdeb5e482d3fdce7e825444b6ca3865e24c02288cdeb5e482d3fdce7e825444b6ca3865e24c0228
linuxlinux>= 7ae3aaf53f1695877ccd5ebbc49ea65991e41f1e < a90ce516a73dbe087f9bf3dbf311301a58d125c6a90ce516a73dbe087f9bf3dbf311301a58d125c6
linuxlinux>= 7ae3aaf53f1695877ccd5ebbc49ea65991e41f1e < 088c5098ec6d6b0396edfbf3dad3e81de8469c1c088c5098ec6d6b0396edfbf3dad3e81de8469c1c
linuxlinux>= 7ae3aaf53f1695877ccd5ebbc49ea65991e41f1e < 0b67c8fc10b13a9090340c5f8a37d308f4e1571c0b67c8fc10b13a9090340c5f8a37d308f4e1571c
linuxlinux_kernel>= 0 < 6.1.158-16.1.158-1
linuxlinux_kernel>= 0 < 6.12.57-16.12.57-1
linuxlinux_kernel>= 0 < 6.17.6-16.17.6-1
linuxlinux_kernel>= 0 < 5.15.0-170.1805.15.0-170.180
linuxlinux_kernel>= 0 < 6.8.0-106.1066.8.0-106.106
linuxlinux_kernel>= 0 < 6.17.0-14.146.17.0-14.14
linuxlinux_kernel>= 4.9.0 < 5.4.3015.4.301
linuxlinux_kernel>= 5.11.0 < 5.15.1955.15.195
linuxlinux_kernel>= 5.16.0 < 6.1.1566.1.156
linuxlinux_kernel>= 5.5.0 < 5.10.2465.10.246

CVSS provenance

nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.8HIGH
vendor_ubuntu7.8HIGH
Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.