CVE-2026-45993

high

Description

In the Linux kernel, the following vulnerability has been resolved: LoongArch: Add spectre boundry for syscall dispatch table The LoongArch syscall number is directly controlled by userspace, but does not have a array_index_nospec() boundry to prevent access past the syscall function pointer tables.

References

https://git.kernel.org/stable/c/bc84a109c2082dd0c4b38e8d923c046b41977533

https://git.kernel.org/stable/c/85cbf7fb568af5358aae61925c4e66b8f5e1439d

https://git.kernel.org/stable/c/108f2cd13577a410c0ad6ea00708596d9d0dfc90

https://git.kernel.org/stable/c/0c965d2784fbbd7f8e3b96d875c9cfdf7c00da3d

https://git.kernel.org/stable/c/07040904ad217545be096d4280ed33c02f6a3750

Details

Source: Mitre, NVD

Published: 2026-05-27

Updated: 2026-05-27

Risk Information

CVSS v2

Base Score: 6.1

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:C

Severity: Medium

CVSS v3

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.00018