LoongArch: Add spectre boundry for syscall dispatch table
Summary
| CVE | CVE-2026-45993 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-05-27 14:17:16 UTC |
| Updated | 2026-06-19 13:16:31 UTC |
| 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. |
Risk And Classification
Primary CVSS: v3.1 5.5 MEDIUM from [email protected]
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS: 0.000180000 probability, percentile 0.049940000 (date 2026-06-01)
Problem Types: NVD-CWE-noinfo
CVSS v3.1 Breakdown
Attack Vector
LocalAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
NoneIntegrity
NoneAvailability
HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Linux | Linux Kernel | All | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected be769645a2aef577f07afdcb4de8fad20b6d57c0 c8a8e863928424046b8fd328f02c359baa0a0c3f git | Not specified |
| CNA | Linux | Linux | affected be769645a2aef577f07afdcb4de8fad20b6d57c0 108f2cd13577a410c0ad6ea00708596d9d0dfc90 git | Not specified |
| CNA | Linux | Linux | affected be769645a2aef577f07afdcb4de8fad20b6d57c0 07040904ad217545be096d4280ed33c02f6a3750 git | Not specified |
| CNA | Linux | Linux | affected be769645a2aef577f07afdcb4de8fad20b6d57c0 85cbf7fb568af5358aae61925c4e66b8f5e1439d git | Not specified |
| CNA | Linux | Linux | affected be769645a2aef577f07afdcb4de8fad20b6d57c0 bc84a109c2082dd0c4b38e8d923c046b41977533 git | Not specified |
| CNA | Linux | Linux | affected be769645a2aef577f07afdcb4de8fad20b6d57c0 0c965d2784fbbd7f8e3b96d875c9cfdf7c00da3d git | Not specified |
| CNA | Linux | Linux | affected 5.19 | Not specified |
| CNA | Linux | Linux | unaffected 5.19 semver | Not specified |
| CNA | Linux | Linux | unaffected 6.1.176 6.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.140 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.86 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.27 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.0.4 7.0.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.1 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/0c965d2784fbbd7f8e3b96d875c9cfdf7c00da3d | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/bc84a109c2082dd0c4b38e8d923c046b41977533 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/07040904ad217545be096d4280ed33c02f6a3750 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/85cbf7fb568af5358aae61925c4e66b8f5e1439d | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/108f2cd13577a410c0ad6ea00708596d9d0dfc90 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/c8a8e863928424046b8fd328f02c359baa0a0c3f | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.