LoongArch: Add spectre boundry for syscall dispatch table

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Summary

CVECVE-2026-45993
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-27 14:17:16 UTC
Updated2026-05-27 14:48:03 UTC
DescriptionIn 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

EPSS: 0.000180000 probability, percentile 0.049940000 (date 2026-06-01)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 108f2cd13577a410c0ad6ea00708596d9d0dfc90 git Not specified
CNA Linux Linux affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 07040904ad217545be096d4280ed33c02f6a3750 git Not specified
CNA Linux Linux affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 85cbf7fb568af5358aae61925c4e66b8f5e1439d git Not specified
CNA Linux Linux affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 bc84a109c2082dd0c4b38e8d923c046b41977533 git Not specified
CNA Linux Linux affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 0c965d2784fbbd7f8e3b96d875c9cfdf7c00da3d git Not specified
CNA Linux Linux affected 6.6.140 semver Not specified
CNA Linux Linux affected 6.12.86 semver Not specified
CNA Linux Linux affected 6.18.27 semver Not specified
CNA Linux Linux affected 7.0.4 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-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/0c965d2784fbbd7f8e3b96d875c9cfdf7c00da3d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/bc84a109c2082dd0c4b38e8d923c046b41977533 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/07040904ad217545be096d4280ed33c02f6a3750 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/85cbf7fb568af5358aae61925c4e66b8f5e1439d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/108f2cd13577a410c0ad6ea00708596d9d0dfc90 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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