{"id":"CVE-2026-80759","state":"PUBLISHED","title":"Bluetooth: hci_aml: validate firmware segment lengths","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_aml: validate firmware segment lengths\n\naml_download_firmware() reads two lengths from the firmware header and\nuses them to build pointers before checking that the header and segment\ndata are present. A truncated or inconsistent firmware image can make\nthe driver read past firmware->data while constructing TCI commands.\n\nReject images shorter than the header and ensure that the ICCM and DCCM\nranges fit within the loaded firmware before downloading either segment.","publishedAt":"2026-09-04T15:12:28.900Z","updatedAt":"2026-10-19T08:43:15.994Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"37bac77e4649e8158698a60addc22ec4faf5649a","status":"affected","lessThan":"7733b01ed13685773ccda91035a46f87d4cfef7c","versionType":"git"},{"version":"37bac77e4649e8158698a60addc22ec4faf5649a","status":"affected","lessThan":"e1534d49a7b8ba728e84b020f6d802aa1cb759d9","versionType":"git"},{"version":"37bac77e4649e8158698a60addc22ec4faf5649a","status":"affected","lessThan":"6c70253462902d835e843b470f74aa816d60af80","versionType":"git"},{"version":"37bac77e4649e8158698a60addc22ec4faf5649a","status":"affected","lessThan":"2763b8bcb504e30ec955474f51b99ce42fc62f3b","versionType":"git"},{"version":"37bac77e4649e8158698a60addc22ec4faf5649a","status":"affected","lessThan":"2bf6b9baca9372ea51b6d0f2820dc9bf29a83ef4","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/bluetooth/hci_aml.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.12","versionType":"semver"},{"version":"6.12.106","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.47","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.11","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2.1","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":["drivers/bluetooth/hci_aml.c"]}],"references":["https://git.kernel.org/stable/c/7733b01ed13685773ccda91035a46f87d4cfef7c","https://git.kernel.org/stable/c/e1534d49a7b8ba728e84b020f6d802aa1cb759d9","https://git.kernel.org/stable/c/6c70253462902d835e843b470f74aa816d60af80","https://git.kernel.org/stable/c/2763b8bcb504e30ec955474f51b99ce42fc62f3b","https://git.kernel.org/stable/c/2bf6b9baca9372ea51b6d0f2820dc9bf29a83ef4"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:07.220Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/80xxx/CVE-2026-80759.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-80759","state":"PUBLISHED","datePublished":"2026-09-04T15:12:28.900Z","dateUpdated":"2026-10-19T08:43:15.994Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-08-26T14:34:25.791Z"},"containers":{"cna":{"title":"Bluetooth: hci_aml: validate firmware segment lengths","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_aml: validate firmware segment lengths\n\naml_download_firmware() reads two lengths from the firmware header and\nuses them to build pointers before checking that the header and segment\ndata are present. A truncated or inconsistent firmware image can make\nthe driver read past firmware->data while constructing TCI commands.\n\nReject images shorter than the header and ensure that the ICCM and DCCM\nranges fit within the loaded firmware before downloading either segment."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"37bac77e4649e8158698a60addc22ec4faf5649a","status":"affected","lessThan":"7733b01ed13685773ccda91035a46f87d4cfef7c","versionType":"git"},{"version":"37bac77e4649e8158698a60addc22ec4faf5649a","status":"affected","lessThan":"e1534d49a7b8ba728e84b020f6d802aa1cb759d9","versionType":"git"},{"version":"37bac77e4649e8158698a60addc22ec4faf5649a","status":"affected","lessThan":"6c70253462902d835e843b470f74aa816d60af80","versionType":"git"},{"version":"37bac77e4649e8158698a60addc22ec4faf5649a","status":"affected","lessThan":"2763b8bcb504e30ec955474f51b99ce42fc62f3b","versionType":"git"},{"version":"37bac77e4649e8158698a60addc22ec4faf5649a","status":"affected","lessThan":"2bf6b9baca9372ea51b6d0f2820dc9bf29a83ef4","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/bluetooth/hci_aml.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.12","versionType":"semver"},{"version":"6.12.106","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.47","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.11","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2.1","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":["drivers/bluetooth/hci_aml.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/7733b01ed13685773ccda91035a46f87d4cfef7c"},{"url":"https://git.kernel.org/stable/c/e1534d49a7b8ba728e84b020f6d802aa1cb759d9"},{"url":"https://git.kernel.org/stable/c/6c70253462902d835e843b470f74aa816d60af80"},{"url":"https://git.kernel.org/stable/c/2763b8bcb504e30ec955474f51b99ce42fc62f3b"},{"url":"https://git.kernel.org/stable/c/2bf6b9baca9372ea51b6d0f2820dc9bf29a83ef4"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T08:43:15.994Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"6.12.106"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"6.18.47"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"7.1.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"7.2.1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}