CVE-2026-45993 PUBLISHED

LoongArch: Add spectre boundry for syscall dispatch table

Assigner: Linux
Reserved: 13.05.2026 Published: 27.05.2026 Updated: 27.05.2026

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.

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to 108f2cd13577a410c0ad6ea00708596d9d0dfc90 (excl.)
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to 07040904ad217545be096d4280ed33c02f6a3750 (excl.)
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to 85cbf7fb568af5358aae61925c4e66b8f5e1439d (excl.)
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to bc84a109c2082dd0c4b38e8d923c046b41977533 (excl.)
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to 0c965d2784fbbd7f8e3b96d875c9cfdf7c00da3d (excl.)
  • affected from 0 to 6.6.140 (excl.)
  • affected from 0 to 6.12.86 (excl.)
  • affected from 0 to 6.18.27 (excl.)
  • affected from 0 to 7.0.4 (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • unaffected from 6.6.140 to 6.6.* (incl.)
  • unaffected from 6.12.86 to 6.12.* (incl.)
  • unaffected from 6.18.27 to 6.18.* (incl.)
  • unaffected from 7.0.4 to 7.0.* (incl.)
  • unaffected from 7.1-rc1 to * (incl.)

References