{"id":"CVE-2026-99099","state":"PUBLISHED","title":"x86/CPU/AMD: Fix AMD TLBI Erratum #1718","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nx86/CPU/AMD: Fix AMD TLBI Erratum #1718\n\nThe processor may fail to invalidate a TLB entry while executing an\nINVLPGB/TLBSYNC instruction pair.\n\nDetect the erratum and apply a software workaround when a microcode fix\nis not present.","publishedAt":"2026-10-26T14:52:04.997Z","updatedAt":"2026-10-26T14:52:04.997Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"82378c6c2f435dba66145609de16bf44a9de6303","status":"affected","lessThan":"e3e6779f77ab6f0a1aa80e24868d2d89f31053fe","versionType":"git"},{"version":"82378c6c2f435dba66145609de16bf44a9de6303","status":"affected","lessThan":"098d80b04d0fe02889c332d061db968f070b83a6","versionType":"git"},{"version":"82378c6c2f435dba66145609de16bf44a9de6303","status":"affected","lessThan":"87db7795cbaaf636ae22ae031f4906db7bb77803","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/x86/include/asm/cpufeatures.h","arch/x86/include/asm/tlb.h","arch/x86/kernel/cpu/amd.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.15","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.15","versionType":"semver"},{"version":"6.18.57","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.11","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/x86/include/asm/cpufeatures.h","arch/x86/include/asm/tlb.h","arch/x86/kernel/cpu/amd.c"]}],"references":["https://git.kernel.org/stable/c/e3e6779f77ab6f0a1aa80e24868d2d89f31053fe","https://git.kernel.org/stable/c/098d80b04d0fe02889c332d061db968f070b83a6","https://git.kernel.org/stable/c/87db7795cbaaf636ae22ae031f4906db7bb77803"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:43.249Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/99xxx/CVE-2026-99099.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-99099","state":"PUBLISHED","datePublished":"2026-10-26T14:52:04.997Z","dateUpdated":"2026-10-26T14:52:04.997Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-25T10:25:14.391Z"},"containers":{"cna":{"title":"x86/CPU/AMD: Fix AMD TLBI Erratum #1718","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nx86/CPU/AMD: Fix AMD TLBI Erratum #1718\n\nThe processor may fail to invalidate a TLB entry while executing an\nINVLPGB/TLBSYNC instruction pair.\n\nDetect the erratum and apply a software workaround when a microcode fix\nis not present."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"82378c6c2f435dba66145609de16bf44a9de6303","status":"affected","lessThan":"e3e6779f77ab6f0a1aa80e24868d2d89f31053fe","versionType":"git"},{"version":"82378c6c2f435dba66145609de16bf44a9de6303","status":"affected","lessThan":"098d80b04d0fe02889c332d061db968f070b83a6","versionType":"git"},{"version":"82378c6c2f435dba66145609de16bf44a9de6303","status":"affected","lessThan":"87db7795cbaaf636ae22ae031f4906db7bb77803","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/x86/include/asm/cpufeatures.h","arch/x86/include/asm/tlb.h","arch/x86/kernel/cpu/amd.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.15","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.15","versionType":"semver"},{"version":"6.18.57","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.11","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/x86/include/asm/cpufeatures.h","arch/x86/include/asm/tlb.h","arch/x86/kernel/cpu/amd.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/e3e6779f77ab6f0a1aa80e24868d2d89f31053fe"},{"url":"https://git.kernel.org/stable/c/098d80b04d0fe02889c332d061db968f070b83a6"},{"url":"https://git.kernel.org/stable/c/87db7795cbaaf636ae22ae031f4906db7bb77803"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-26T14:52:04.997Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.15","versionEndExcluding":"6.18.57"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.15","versionEndExcluding":"7.2.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.15","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}