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CVE-2026-45993 (GCVE-0-2026-45993)

Vulnerability from cvelistv5 – Published: 2026-05-27 12:55 – Updated: 2026-06-19 11:58
VLAI
Title
LoongArch: Add spectre boundry for syscall dispatch table
Summary
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.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: be769645a2aef577f07afdcb4de8fad20b6d57c0 , < c8a8e863928424046b8fd328f02c359baa0a0c3f (git)
Affected: be769645a2aef577f07afdcb4de8fad20b6d57c0 , < 108f2cd13577a410c0ad6ea00708596d9d0dfc90 (git)
Affected: be769645a2aef577f07afdcb4de8fad20b6d57c0 , < 07040904ad217545be096d4280ed33c02f6a3750 (git)
Affected: be769645a2aef577f07afdcb4de8fad20b6d57c0 , < 85cbf7fb568af5358aae61925c4e66b8f5e1439d (git)
Affected: be769645a2aef577f07afdcb4de8fad20b6d57c0 , < bc84a109c2082dd0c4b38e8d923c046b41977533 (git)
Affected: be769645a2aef577f07afdcb4de8fad20b6d57c0 , < 0c965d2784fbbd7f8e3b96d875c9cfdf7c00da3d (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.19
Unaffected: 0 , < 5.19 (semver)
Unaffected: 6.1.176 , ≤ 6.1.* (semver)
Unaffected: 6.6.140 , ≤ 6.6.* (semver)
Unaffected: 6.12.86 , ≤ 6.12.* (semver)
Unaffected: 6.18.27 , ≤ 6.18.* (semver)
Unaffected: 7.0.4 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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      "title": "SUSE CVE CVE-2026-45993",
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}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.