{"id":"CVE-2026-64166","state":"PUBLISHED","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.","publishedAt":"2026-07-19T15:40:51.305Z","updatedAt":"2026-07-19T15:40:51.305Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"92743071464fca5acbbe812d9a0d88de3eaaad36","status":"affected","lessThan":"f98f131256beaddd51ad468e95d90d857fef12bf","versionType":"git"},{"version":"92743071464fca5acbbe812d9a0d88de3eaaad36","status":"affected","lessThan":"bc499d1acddbb75b5b4bce05f5296dd8ef9611fd","versionType":"git"},{"version":"92743071464fca5acbbe812d9a0d88de3eaaad36","status":"affected","lessThan":"adfff93d08a2e12ecf2a1eba272d18bc749f13c0","versionType":"git"},{"version":"92743071464fca5acbbe812d9a0d88de3eaaad36","status":"affected","lessThan":"34f59211984f66788390e7469f3e99d3796db4a8","versionType":"git"},{"version":"92743071464fca5acbbe812d9a0d88de3eaaad36","status":"affected","lessThan":"820245d86ce58898fb48b4fefc77d0cafc02801d","versionType":"git"},{"version":"92743071464fca5acbbe812d9a0d88de3eaaad36","status":"affected","lessThan":"198f6c86d508ed562f07dc00276cac6dbb5dd3bf","versionType":"git"},{"version":"92743071464fca5acbbe812d9a0d88de3eaaad36","status":"affected","lessThan":"0a5e695095c557d2380131b613dea4e8d90371be","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/firmware/arm_ffa/bus.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.14","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.14","versionType":"semver"},{"version":"5.15.209","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.175","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.142","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.92","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.34","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.0.11","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/firmware/arm_ffa/bus.c"]}],"references":["https://git.kernel.org/stable/c/f98f131256beaddd51ad468e95d90d857fef12bf","https://git.kernel.org/stable/c/bc499d1acddbb75b5b4bce05f5296dd8ef9611fd","https://git.kernel.org/stable/c/adfff93d08a2e12ecf2a1eba272d18bc749f13c0","https://git.kernel.org/stable/c/34f59211984f66788390e7469f3e99d3796db4a8","https://git.kernel.org/stable/c/820245d86ce58898fb48b4fefc77d0cafc02801d","https://git.kernel.org/stable/c/198f6c86d508ed562f07dc00276cac6dbb5dd3bf","https://git.kernel.org/stable/c/0a5e695095c557d2380131b613dea4e8d90371be"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:41.951Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/64xxx/CVE-2026-64166.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-64166","state":"PUBLISHED","datePublished":"2026-07-19T15:40:51.305Z","dateUpdated":"2026-07-19T15:40:51.305Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-07-19T07:54:57.038Z"},"containers":{"cna":{"title":"firmware: arm_ffa: Check for NULL FF-A ID table while driver registration","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."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"92743071464fca5acbbe812d9a0d88de3eaaad36","status":"affected","lessThan":"f98f131256beaddd51ad468e95d90d857fef12bf","versionType":"git"},{"version":"92743071464fca5acbbe812d9a0d88de3eaaad36","status":"affected","lessThan":"bc499d1acddbb75b5b4bce05f5296dd8ef9611fd","versionType":"git"},{"version":"92743071464fca5acbbe812d9a0d88de3eaaad36","status":"affected","lessThan":"adfff93d08a2e12ecf2a1eba272d18bc749f13c0","versionType":"git"},{"version":"92743071464fca5acbbe812d9a0d88de3eaaad36","status":"affected","lessThan":"34f59211984f66788390e7469f3e99d3796db4a8","versionType":"git"},{"version":"92743071464fca5acbbe812d9a0d88de3eaaad36","status":"affected","lessThan":"820245d86ce58898fb48b4fefc77d0cafc02801d","versionType":"git"},{"version":"92743071464fca5acbbe812d9a0d88de3eaaad36","status":"affected","lessThan":"198f6c86d508ed562f07dc00276cac6dbb5dd3bf","versionType":"git"},{"version":"92743071464fca5acbbe812d9a0d88de3eaaad36","status":"affected","lessThan":"0a5e695095c557d2380131b613dea4e8d90371be","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/firmware/arm_ffa/bus.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.14","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.14","versionType":"semver"},{"version":"5.15.209","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.175","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.142","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.92","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.34","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.0.11","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/firmware/arm_ffa/bus.c"]}],"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"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-07-19T15:40:51.305Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"5.15.209"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"6.1.175"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"6.6.142"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"6.12.92"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"6.18.34"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"7.0.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"7.1"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}