CVE-2025-40112

Katalog CVE

CVSS 7.8 · High EPSS 0,17%

Skor CVSS 3.1 7.8 (High) menurut CNA.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

12 November 2025

Terakhir diubah

30 Juli 2026

Status NVD

Deferred

CVSS 3.1

7.8 (High), sumber CNA
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

EPSS (30 hari)

0,17% peluang dieksploitasi; lebih tinggi dari 5,8% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/05440320ea3e249d5f984918f2bf51210c1a7c03
• https://git.kernel.org/stable/c/088c5098ec6d6b0396edfbf3dad3e81de8469c1c
• https://git.kernel.org/stable/c/0b67c8fc10b13a9090340c5f8a37d308f4e1571c
• https://git.kernel.org/stable/c/37547d8e6eba87507279ee3dfddfd9dc46335454
• https://git.kernel.org/stable/c/7823fc4d8ab5e57f8db7806ff2530c03c166c4bb
• https://git.kernel.org/stable/c/8cdeb5e482d3fdce7e825444b6ca3865e24c0228
• https://git.kernel.org/stable/c/a365ee556e45f780ee322b349a06efdad0c1458f
• https://git.kernel.org/stable/c/a90ce516a73dbe087f9bf3dbf311301a58d125c6