{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-64220","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-07-19T15:36:31.770Z","datePublished":"2026-07-24T15:23:06.931Z","dateUpdated":"2026-07-24T15:23:06.931Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-07-24T15:23:06.931Z"},"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."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["include/linux/fwnode.h"],"versions":[{"version":"01bb86b380a306bd937c96da36f66429f3362137","lessThan":"f0e211d6539fae800217c10797993b7592d6ab01","status":"affected","versionType":"git"},{"version":"01bb86b380a306bd937c96da36f66429f3362137","lessThan":"3f1024deeab3b5443c29b3de4fe475e87309b8fa","status":"affected","versionType":"git"},{"version":"01bb86b380a306bd937c96da36f66429f3362137","lessThan":"371f53925a6714d0aa35f1aefdffc3e8cd62f480","status":"affected","versionType":"git"},{"version":"01bb86b380a306bd937c96da36f66429f3362137","lessThan":"34bf74b1fd2e4a44e27821a329204caf09df2976","status":"affected","versionType":"git"},{"version":"01bb86b380a306bd937c96da36f66429f3362137","lessThan":"508fd8ab158abd04b7f7d0f707cd6d6c405df4ea","status":"affected","versionType":"git"},{"version":"01bb86b380a306bd937c96da36f66429f3362137","lessThan":"f59e686c778cb41b8f7aa8fab2afd6a01afb3d47","status":"affected","versionType":"git"},{"version":"01bb86b380a306bd937c96da36f66429f3362137","lessThan":"215c90ee656114f5e8c32408228d97082f8e0eef","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["include/linux/fwnode.h"],"versions":[{"version":"5.11","status":"affected"},{"version":"0","lessThan":"5.11","status":"unaffected","versionType":"semver"},{"version":"5.15.209","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.175","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.142","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.92","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.34","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.0.11","lessThanOrEqual":"7.0.*","status":"unaffected","versionType":"semver"},{"version":"7.1","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.15.209"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"6.1.175"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"6.6.142"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"6.12.92"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"6.18.34"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"7.0.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"7.1"}]}]}],"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"}}}}