{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-45993","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-05-13T15:03:33.091Z","datePublished":"2026-05-27T12:55:46.480Z","dateUpdated":"2026-06-19T11:58:50.818Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-06-19T11:58:50.818Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: Add spectre boundry for syscall dispatch table\n\nThe LoongArch syscall number is directly controlled by userspace, but\ndoes not have a array_index_nospec() boundry to prevent access past the\nsyscall function pointer tables."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/loongarch/kernel/syscall.c"],"versions":[{"version":"be769645a2aef577f07afdcb4de8fad20b6d57c0","lessThan":"c8a8e863928424046b8fd328f02c359baa0a0c3f","status":"affected","versionType":"git"},{"version":"be769645a2aef577f07afdcb4de8fad20b6d57c0","lessThan":"108f2cd13577a410c0ad6ea00708596d9d0dfc90","status":"affected","versionType":"git"},{"version":"be769645a2aef577f07afdcb4de8fad20b6d57c0","lessThan":"07040904ad217545be096d4280ed33c02f6a3750","status":"affected","versionType":"git"},{"version":"be769645a2aef577f07afdcb4de8fad20b6d57c0","lessThan":"85cbf7fb568af5358aae61925c4e66b8f5e1439d","status":"affected","versionType":"git"},{"version":"be769645a2aef577f07afdcb4de8fad20b6d57c0","lessThan":"bc84a109c2082dd0c4b38e8d923c046b41977533","status":"affected","versionType":"git"},{"version":"be769645a2aef577f07afdcb4de8fad20b6d57c0","lessThan":"0c965d2784fbbd7f8e3b96d875c9cfdf7c00da3d","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/loongarch/kernel/syscall.c"],"versions":[{"version":"5.19","status":"affected"},{"version":"0","lessThan":"5.19","status":"unaffected","versionType":"semver"},{"version":"6.1.176","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.140","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.86","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.27","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.0.4","lessThanOrEqual":"7.0.*","status":"unaffected","versionType":"semver"},{"version":"7.1","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.19","versionEndExcluding":"6.1.176"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.19","versionEndExcluding":"6.6.140"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.19","versionEndExcluding":"6.12.86"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.19","versionEndExcluding":"6.18.27"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.19","versionEndExcluding":"7.0.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.19","versionEndExcluding":"7.1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/c8a8e863928424046b8fd328f02c359baa0a0c3f"},{"url":"https://git.kernel.org/stable/c/108f2cd13577a410c0ad6ea00708596d9d0dfc90"},{"url":"https://git.kernel.org/stable/c/07040904ad217545be096d4280ed33c02f6a3750"},{"url":"https://git.kernel.org/stable/c/85cbf7fb568af5358aae61925c4e66b8f5e1439d"},{"url":"https://git.kernel.org/stable/c/bc84a109c2082dd0c4b38e8d923c046b41977533"},{"url":"https://git.kernel.org/stable/c/0c965d2784fbbd7f8e3b96d875c9cfdf7c00da3d"}],"title":"LoongArch: Add spectre boundry for syscall dispatch table","x_generator":{"engine":"bippy-1.2.0"}}}}