{"id":"CVE-2026-68325","state":"PUBLISHED","title":"iommu/amd: Bound the early ACPI HID map","description":"In the Linux kernel, the following vulnerability has been resolved:\n\niommu/amd: Bound the early ACPI HID map\n\nThe ivrs_acpihid command-line parser appends entries to a fixed\nfour-element early_acpihid_map array. Unlike the sibling IOAPIC and HPET\nparsers, it does not reject a fifth entry before incrementing the map size.\n\nCheck the capacity at the common found label before parsing the HID and\nUID or writing the entry.","publishedAt":"2026-08-10T12:03:01.384Z","updatedAt":"2026-08-19T16:33:18.080Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"ca3bf5d47cec8b7614bcb2e9132c40081d6d81db","status":"affected","lessThan":"9ae6b1b972ce01d3316c8a5f7f58c8b3668cc6bb","versionType":"git"},{"version":"ca3bf5d47cec8b7614bcb2e9132c40081d6d81db","status":"affected","lessThan":"e5e0098f8cd82f8b3c8687a8f686309565d51745","versionType":"git"},{"version":"ca3bf5d47cec8b7614bcb2e9132c40081d6d81db","status":"affected","lessThan":"afe7ea0520c49586703f210865ace2d70b017e48","versionType":"git"},{"version":"ca3bf5d47cec8b7614bcb2e9132c40081d6d81db","status":"affected","lessThan":"1e31d2394e0db69541b1591d46c5ad6431c81db3","versionType":"git"},{"version":"ca3bf5d47cec8b7614bcb2e9132c40081d6d81db","status":"affected","lessThan":"abe5d7962f09adada9c4fb25b816dddd3f97c55d","versionType":"git"},{"version":"ca3bf5d47cec8b7614bcb2e9132c40081d6d81db","status":"affected","lessThan":"e5ebe8544df1a1c3611739a8622156094fe470df","versionType":"git"},{"version":"ca3bf5d47cec8b7614bcb2e9132c40081d6d81db","status":"affected","lessThan":"030a8e84f8f1b6e96f469c84a13a225c3699910b","versionType":"git"},{"version":"ca3bf5d47cec8b7614bcb2e9132c40081d6d81db","status":"affected","lessThan":"fb80117fddb5b477218dc99bb53911b72c3847f8","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/iommu/amd/init.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.7","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.7","versionType":"semver"},{"version":"5.10.265","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.216","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.183","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.148","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.101","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.42","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.6","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/iommu/amd/init.c"]}],"references":["https://git.kernel.org/stable/c/9ae6b1b972ce01d3316c8a5f7f58c8b3668cc6bb","https://git.kernel.org/stable/c/e5e0098f8cd82f8b3c8687a8f686309565d51745","https://git.kernel.org/stable/c/afe7ea0520c49586703f210865ace2d70b017e48","https://git.kernel.org/stable/c/1e31d2394e0db69541b1591d46c5ad6431c81db3","https://git.kernel.org/stable/c/abe5d7962f09adada9c4fb25b816dddd3f97c55d","https://git.kernel.org/stable/c/e5ebe8544df1a1c3611739a8622156094fe470df","https://git.kernel.org/stable/c/030a8e84f8f1b6e96f469c84a13a225c3699910b","https://git.kernel.org/stable/c/fb80117fddb5b477218dc99bb53911b72c3847f8"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:49.727Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/68xxx/CVE-2026-68325.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-68325","state":"PUBLISHED","datePublished":"2026-08-10T12:03:01.384Z","dateUpdated":"2026-08-19T16:33:18.080Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-07-30T09:28:09.382Z"},"containers":{"cna":{"title":"iommu/amd: Bound the early ACPI HID map","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\niommu/amd: Bound the early ACPI HID map\n\nThe ivrs_acpihid command-line parser appends entries to a fixed\nfour-element early_acpihid_map array. Unlike the sibling IOAPIC and HPET\nparsers, it does not reject a fifth entry before incrementing the map size.\n\nCheck the capacity at the common found label before parsing the HID and\nUID or writing the entry."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"ca3bf5d47cec8b7614bcb2e9132c40081d6d81db","status":"affected","lessThan":"9ae6b1b972ce01d3316c8a5f7f58c8b3668cc6bb","versionType":"git"},{"version":"ca3bf5d47cec8b7614bcb2e9132c40081d6d81db","status":"affected","lessThan":"e5e0098f8cd82f8b3c8687a8f686309565d51745","versionType":"git"},{"version":"ca3bf5d47cec8b7614bcb2e9132c40081d6d81db","status":"affected","lessThan":"afe7ea0520c49586703f210865ace2d70b017e48","versionType":"git"},{"version":"ca3bf5d47cec8b7614bcb2e9132c40081d6d81db","status":"affected","lessThan":"1e31d2394e0db69541b1591d46c5ad6431c81db3","versionType":"git"},{"version":"ca3bf5d47cec8b7614bcb2e9132c40081d6d81db","status":"affected","lessThan":"abe5d7962f09adada9c4fb25b816dddd3f97c55d","versionType":"git"},{"version":"ca3bf5d47cec8b7614bcb2e9132c40081d6d81db","status":"affected","lessThan":"e5ebe8544df1a1c3611739a8622156094fe470df","versionType":"git"},{"version":"ca3bf5d47cec8b7614bcb2e9132c40081d6d81db","status":"affected","lessThan":"030a8e84f8f1b6e96f469c84a13a225c3699910b","versionType":"git"},{"version":"ca3bf5d47cec8b7614bcb2e9132c40081d6d81db","status":"affected","lessThan":"fb80117fddb5b477218dc99bb53911b72c3847f8","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/iommu/amd/init.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.7","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.7","versionType":"semver"},{"version":"5.10.265","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.216","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.183","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.148","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.101","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.42","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.6","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/iommu/amd/init.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/9ae6b1b972ce01d3316c8a5f7f58c8b3668cc6bb"},{"url":"https://git.kernel.org/stable/c/e5e0098f8cd82f8b3c8687a8f686309565d51745"},{"url":"https://git.kernel.org/stable/c/afe7ea0520c49586703f210865ace2d70b017e48"},{"url":"https://git.kernel.org/stable/c/1e31d2394e0db69541b1591d46c5ad6431c81db3"},{"url":"https://git.kernel.org/stable/c/abe5d7962f09adada9c4fb25b816dddd3f97c55d"},{"url":"https://git.kernel.org/stable/c/e5ebe8544df1a1c3611739a8622156094fe470df"},{"url":"https://git.kernel.org/stable/c/030a8e84f8f1b6e96f469c84a13a225c3699910b"},{"url":"https://git.kernel.org/stable/c/fb80117fddb5b477218dc99bb53911b72c3847f8"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-08-19T16:33:18.080Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.7","versionEndExcluding":"5.10.265"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.7","versionEndExcluding":"5.15.216"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.7","versionEndExcluding":"6.1.183"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.7","versionEndExcluding":"6.6.148"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.7","versionEndExcluding":"6.12.101"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.7","versionEndExcluding":"6.18.42"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.7","versionEndExcluding":"7.1.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.7","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}