{"api_version":"1","generated_at":"2026-07-24T18:27:05+00:00","cve":"CVE-2026-64220","urls":{"html":"https://cve.report/CVE-2026-64220","api":"https://cve.report/api/cve/CVE-2026-64220.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-64220","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-64220"},"summary":{"title":"device property: set fwnode->secondary to NULL in fwnode_init()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndevice property: set fwnode->secondary to NULL in fwnode_init()\n\nIf a firmware node is allocated on the stack (for instance: temporary\nsoftware node whose life-time we control) or on the heap - but using a\nnon-zeroing allocation function - and initialized using fwnode_init(),\nits secondary pointer will contain uninitalized memory which likely will\nbe neither NULL nor IS_ERR() and so may end up being dereferenced (for\nexample: in dev_to_swnode()). Set fwnode->secondary to NULL on\ninitialization.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-07-24 16:16:49","updated_at":"2026-07-24 16:16:49"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/f0e211d6539fae800217c10797993b7592d6ab01","name":"https://git.kernel.org/stable/c/f0e211d6539fae800217c10797993b7592d6ab01","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/371f53925a6714d0aa35f1aefdffc3e8cd62f480","name":"https://git.kernel.org/stable/c/371f53925a6714d0aa35f1aefdffc3e8cd62f480","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/215c90ee656114f5e8c32408228d97082f8e0eef","name":"https://git.kernel.org/stable/c/215c90ee656114f5e8c32408228d97082f8e0eef","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f59e686c778cb41b8f7aa8fab2afd6a01afb3d47","name":"https://git.kernel.org/stable/c/f59e686c778cb41b8f7aa8fab2afd6a01afb3d47","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/34bf74b1fd2e4a44e27821a329204caf09df2976","name":"https://git.kernel.org/stable/c/34bf74b1fd2e4a44e27821a329204caf09df2976","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/508fd8ab158abd04b7f7d0f707cd6d6c405df4ea","name":"https://git.kernel.org/stable/c/508fd8ab158abd04b7f7d0f707cd6d6c405df4ea","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3f1024deeab3b5443c29b3de4fe475e87309b8fa","name":"https://git.kernel.org/stable/c/3f1024deeab3b5443c29b3de4fe475e87309b8fa","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-64220","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64220","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 01bb86b380a306bd937c96da36f66429f3362137 f0e211d6539fae800217c10797993b7592d6ab01 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 01bb86b380a306bd937c96da36f66429f3362137 3f1024deeab3b5443c29b3de4fe475e87309b8fa git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 01bb86b380a306bd937c96da36f66429f3362137 371f53925a6714d0aa35f1aefdffc3e8cd62f480 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 01bb86b380a306bd937c96da36f66429f3362137 34bf74b1fd2e4a44e27821a329204caf09df2976 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 01bb86b380a306bd937c96da36f66429f3362137 508fd8ab158abd04b7f7d0f707cd6d6c405df4ea git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 01bb86b380a306bd937c96da36f66429f3362137 f59e686c778cb41b8f7aa8fab2afd6a01afb3d47 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 01bb86b380a306bd937c96da36f66429f3362137 215c90ee656114f5e8c32408228d97082f8e0eef git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.11","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.11 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":["include/linux/fwnode.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"f0e211d6539fae800217c10797993b7592d6ab01","status":"affected","version":"01bb86b380a306bd937c96da36f66429f3362137","versionType":"git"},{"lessThan":"3f1024deeab3b5443c29b3de4fe475e87309b8fa","status":"affected","version":"01bb86b380a306bd937c96da36f66429f3362137","versionType":"git"},{"lessThan":"371f53925a6714d0aa35f1aefdffc3e8cd62f480","status":"affected","version":"01bb86b380a306bd937c96da36f66429f3362137","versionType":"git"},{"lessThan":"34bf74b1fd2e4a44e27821a329204caf09df2976","status":"affected","version":"01bb86b380a306bd937c96da36f66429f3362137","versionType":"git"},{"lessThan":"508fd8ab158abd04b7f7d0f707cd6d6c405df4ea","status":"affected","version":"01bb86b380a306bd937c96da36f66429f3362137","versionType":"git"},{"lessThan":"f59e686c778cb41b8f7aa8fab2afd6a01afb3d47","status":"affected","version":"01bb86b380a306bd937c96da36f66429f3362137","versionType":"git"},{"lessThan":"215c90ee656114f5e8c32408228d97082f8e0eef","status":"affected","version":"01bb86b380a306bd937c96da36f66429f3362137","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["include/linux/fwnode.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.11"},{"lessThan":"5.11","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":"5.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.175","versionStartIncluding":"5.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.142","versionStartIncluding":"5.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.92","versionStartIncluding":"5.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.34","versionStartIncluding":"5.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.11","versionStartIncluding":"5.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1","versionStartIncluding":"5.11","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndevice property: set fwnode->secondary to NULL in fwnode_init()\n\nIf a firmware node is allocated on the stack (for instance: temporary\nsoftware node whose life-time we control) or on the heap - but using a\nnon-zeroing allocation function - and initialized using fwnode_init(),\nits secondary pointer will contain uninitalized memory which likely will\nbe neither NULL nor IS_ERR() and so may end up being dereferenced (for\nexample: in dev_to_swnode()). Set fwnode->secondary to NULL on\ninitialization."}],"providerMetadata":{"dateUpdated":"2026-07-24T15:23:06.931Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/f0e211d6539fae800217c10797993b7592d6ab01"},{"url":"https://git.kernel.org/stable/c/3f1024deeab3b5443c29b3de4fe475e87309b8fa"},{"url":"https://git.kernel.org/stable/c/371f53925a6714d0aa35f1aefdffc3e8cd62f480"},{"url":"https://git.kernel.org/stable/c/34bf74b1fd2e4a44e27821a329204caf09df2976"},{"url":"https://git.kernel.org/stable/c/508fd8ab158abd04b7f7d0f707cd6d6c405df4ea"},{"url":"https://git.kernel.org/stable/c/f59e686c778cb41b8f7aa8fab2afd6a01afb3d47"},{"url":"https://git.kernel.org/stable/c/215c90ee656114f5e8c32408228d97082f8e0eef"}],"title":"device property: set fwnode->secondary to NULL in fwnode_init()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-64220","datePublished":"2026-07-24T15:23:06.931Z","dateReserved":"2026-07-19T15:36:31.770Z","dateUpdated":"2026-07-24T15:23:06.931Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-24 16:16:49","lastModifiedDate":"2026-07-24 16:16:49","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"64220","Ordinal":"1","Title":"device property: set fwnode->secondary to NULL in fwnode_init()","CVE":"CVE-2026-64220","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"64220","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\ndevice property: set fwnode->secondary to NULL in fwnode_init()\n\nIf a firmware node is allocated on the stack (for instance: temporary\nsoftware node whose life-time we control) or on the heap - but using a\nnon-zeroing allocation function - and initialized using fwnode_init(),\nits secondary pointer will contain uninitalized memory which likely will\nbe neither NULL nor IS_ERR() and so may end up being dereferenced (for\nexample: in dev_to_swnode()). Set fwnode->secondary to NULL on\ninitialization.","Type":"Description","Title":"device property: set fwnode->secondary to NULL in fwnode_init()"}]}}}