{"api_version":"1","generated_at":"2026-07-20T14:42:02+00:00","cve":"CVE-2026-64166","urls":{"html":"https://cve.report/CVE-2026-64166","api":"https://cve.report/api/cve/CVE-2026-64166.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-64166","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-64166"},"summary":{"title":"firmware: arm_ffa: Check for NULL FF-A ID table while driver registration","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: arm_ffa: Check for NULL FF-A ID table while driver registration\n\nThe bus match callback assumes that every FF-A driver provides an\nid_table and dereferences it unconditionally. Enforce that contract at\nregistration time so a buggy client driver cannot crash the bus during\nmatch.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-07-19 16:17:58","updated_at":"2026-07-19 16:17:58"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/198f6c86d508ed562f07dc00276cac6dbb5dd3bf","name":"https://git.kernel.org/stable/c/198f6c86d508ed562f07dc00276cac6dbb5dd3bf","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/820245d86ce58898fb48b4fefc77d0cafc02801d","name":"https://git.kernel.org/stable/c/820245d86ce58898fb48b4fefc77d0cafc02801d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/adfff93d08a2e12ecf2a1eba272d18bc749f13c0","name":"https://git.kernel.org/stable/c/adfff93d08a2e12ecf2a1eba272d18bc749f13c0","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f98f131256beaddd51ad468e95d90d857fef12bf","name":"https://git.kernel.org/stable/c/f98f131256beaddd51ad468e95d90d857fef12bf","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/bc499d1acddbb75b5b4bce05f5296dd8ef9611fd","name":"https://git.kernel.org/stable/c/bc499d1acddbb75b5b4bce05f5296dd8ef9611fd","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0a5e695095c557d2380131b613dea4e8d90371be","name":"https://git.kernel.org/stable/c/0a5e695095c557d2380131b613dea4e8d90371be","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/34f59211984f66788390e7469f3e99d3796db4a8","name":"https://git.kernel.org/stable/c/34f59211984f66788390e7469f3e99d3796db4a8","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-64166","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64166","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 92743071464fca5acbbe812d9a0d88de3eaaad36 f98f131256beaddd51ad468e95d90d857fef12bf git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 92743071464fca5acbbe812d9a0d88de3eaaad36 bc499d1acddbb75b5b4bce05f5296dd8ef9611fd git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 92743071464fca5acbbe812d9a0d88de3eaaad36 adfff93d08a2e12ecf2a1eba272d18bc749f13c0 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 92743071464fca5acbbe812d9a0d88de3eaaad36 34f59211984f66788390e7469f3e99d3796db4a8 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 92743071464fca5acbbe812d9a0d88de3eaaad36 820245d86ce58898fb48b4fefc77d0cafc02801d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 92743071464fca5acbbe812d9a0d88de3eaaad36 198f6c86d508ed562f07dc00276cac6dbb5dd3bf git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 92743071464fca5acbbe812d9a0d88de3eaaad36 0a5e695095c557d2380131b613dea4e8d90371be git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.14","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.14 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.209 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.175 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.142 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.92 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.34 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.11 7.0.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/firmware/arm_ffa/bus.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"f98f131256beaddd51ad468e95d90d857fef12bf","status":"affected","version":"92743071464fca5acbbe812d9a0d88de3eaaad36","versionType":"git"},{"lessThan":"bc499d1acddbb75b5b4bce05f5296dd8ef9611fd","status":"affected","version":"92743071464fca5acbbe812d9a0d88de3eaaad36","versionType":"git"},{"lessThan":"adfff93d08a2e12ecf2a1eba272d18bc749f13c0","status":"affected","version":"92743071464fca5acbbe812d9a0d88de3eaaad36","versionType":"git"},{"lessThan":"34f59211984f66788390e7469f3e99d3796db4a8","status":"affected","version":"92743071464fca5acbbe812d9a0d88de3eaaad36","versionType":"git"},{"lessThan":"820245d86ce58898fb48b4fefc77d0cafc02801d","status":"affected","version":"92743071464fca5acbbe812d9a0d88de3eaaad36","versionType":"git"},{"lessThan":"198f6c86d508ed562f07dc00276cac6dbb5dd3bf","status":"affected","version":"92743071464fca5acbbe812d9a0d88de3eaaad36","versionType":"git"},{"lessThan":"0a5e695095c557d2380131b613dea4e8d90371be","status":"affected","version":"92743071464fca5acbbe812d9a0d88de3eaaad36","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/firmware/arm_ffa/bus.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.14"},{"lessThan":"5.14","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.209","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.142","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.92","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.34","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.11","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.209","versionStartIncluding":"5.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.175","versionStartIncluding":"5.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.142","versionStartIncluding":"5.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.92","versionStartIncluding":"5.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.34","versionStartIncluding":"5.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.11","versionStartIncluding":"5.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1","versionStartIncluding":"5.14","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: arm_ffa: Check for NULL FF-A ID table while driver registration\n\nThe bus match callback assumes that every FF-A driver provides an\nid_table and dereferences it unconditionally. Enforce that contract at\nregistration time so a buggy client driver cannot crash the bus during\nmatch."}],"providerMetadata":{"dateUpdated":"2026-07-19T15:40:51.305Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/f98f131256beaddd51ad468e95d90d857fef12bf"},{"url":"https://git.kernel.org/stable/c/bc499d1acddbb75b5b4bce05f5296dd8ef9611fd"},{"url":"https://git.kernel.org/stable/c/adfff93d08a2e12ecf2a1eba272d18bc749f13c0"},{"url":"https://git.kernel.org/stable/c/34f59211984f66788390e7469f3e99d3796db4a8"},{"url":"https://git.kernel.org/stable/c/820245d86ce58898fb48b4fefc77d0cafc02801d"},{"url":"https://git.kernel.org/stable/c/198f6c86d508ed562f07dc00276cac6dbb5dd3bf"},{"url":"https://git.kernel.org/stable/c/0a5e695095c557d2380131b613dea4e8d90371be"}],"title":"firmware: arm_ffa: Check for NULL FF-A ID table while driver registration","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-64166","datePublished":"2026-07-19T15:40:51.305Z","dateReserved":"2026-07-19T07:54:57.038Z","dateUpdated":"2026-07-19T15:40:51.305Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-19 16:17:58","lastModifiedDate":"2026-07-19 16:17:58","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"64166","Ordinal":"1","Title":"firmware: arm_ffa: Check for NULL FF-A ID table while driver reg","CVE":"CVE-2026-64166","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"64166","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: arm_ffa: Check for NULL FF-A ID table while driver registration\n\nThe bus match callback assumes that every FF-A driver provides an\nid_table and dereferences it unconditionally. Enforce that contract at\nregistration time so a buggy client driver cannot crash the bus during\nmatch.","Type":"Description","Title":"firmware: arm_ffa: Check for NULL FF-A ID table while driver reg"}]}}}