CVE-2026-45993
LoongArch: Add spectre boundry for syscall dispatch table
MEDIUM 5.5
At a glance
- Source
- NVD
- EPSS
- EPSS 0.14 % · percentile 3 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Modified
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/c8a8e863928424046b8fd328f02c359baa0a0c3f
- https://git.kernel.org/stable/c/108f2cd13577a410c0ad6ea00708596d9d0dfc90
- https://git.kernel.org/stable/c/07040904ad217545be096d4280ed33c02f6a3750
- https://git.kernel.org/stable/c/85cbf7fb568af5358aae61925c4e66b8f5e1439d
- https://git.kernel.org/stable/c/bc84a109c2082dd0c4b38e8d923c046b41977533
- https://git.kernel.org/stable/c/0c965d2784fbbd7f8e3b96d875c9cfdf7c00da3d
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2026-32289
- GCVE · GCVE-0-2026-45993
CERT-FR advisories
- CERTFR-2026-AVI-0731 — Multiples vulnérabilités dans les produits Microsoft · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.19 < 6.6.140cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.7 < 6.12.86cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.13 < 6.18.27cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.19 < 7.0.4
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected be769645a2aef577f07afdcb4de8fad20b6d57c0 < c8a8e863928424046b8fd328f02c359baa0a0c3f ; affected be769645a2aef577f07afdcb4de8fad20b6d57c0 < 108f2cd13577a410c0ad6ea00708596d9d0dfc90 ; affected be769645a2aef577f07afdcb4de8fad20b6d57c0 < 07040904ad217545be096d4280ed33c02f6a3750 ; affected be769645a2aef577f07afdcb4de8fad20b6d57c0 < 85cbf7fb568af5358aae61925c4e66b8f5e1439d ; affected be769645a2aef577f07afdcb4de8fad20b6d57c0 < bc84a109c2082dd0c4b38e8d923c046b41977533 ; affected be769645a2aef577f07afdcb4de8fad20b6d57c0 < 0c965d2784fbbd7f8e3b96d875c9cfdf7c00da3d |
| Linux · Linux | affected 5.19 ; unaffected 0 < 5.19 ; unaffected 6.1.176 ≤ 6.1.* ; unaffected 6.6.140 ≤ 6.6.* ; unaffected 6.12.86 ≤ 6.12.* ; unaffected 6.18.27 ≤ 6.18.* |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |