{"api_version":"1","generated_at":"2026-07-20T14:42:13+00:00","cve":"CVE-2026-64101","urls":{"html":"https://cve.report/CVE-2026-64101","api":"https://cve.report/api/cve/CVE-2026-64101.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-64101","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-64101"},"summary":{"title":"fwctl: pds: Validate RPC input size before parsing","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nfwctl: pds: Validate RPC input size before parsing\n\nThe fwctl core allocates the device-specific RPC input buffer with\nfwctl_rpc.in_len and passes that buffer to the driver callback.\n\npdsfc_fw_rpc() casts the buffer to struct fwctl_rpc_pds and then calls\npdsfc_validate_rpc(), which reads fields from that structure before\nchecking that the input buffer is large enough to contain it. A short\nin_len can make pds_fwctl read beyond the allocation.\n\nReject pds RPC buffers that are smaller than struct fwctl_rpc_pds before\nparsing any pds-specific fields.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-07-19 16:17:51","updated_at":"2026-07-19 16:17:51"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/9e3f18883a98420a3b8873c6f894bc57e9b98e41","name":"https://git.kernel.org/stable/c/9e3f18883a98420a3b8873c6f894bc57e9b98e41","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e7537735028c3ad4b0bfc02ff8fa2a1a28aa04fe","name":"https://git.kernel.org/stable/c/e7537735028c3ad4b0bfc02ff8fa2a1a28aa04fe","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0d470d36551058e3f728574308b815a80bca710f","name":"https://git.kernel.org/stable/c/0d470d36551058e3f728574308b815a80bca710f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-64101","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64101","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 92c66ee829b99a860a90f62ef16df3e42f92edac 9e3f18883a98420a3b8873c6f894bc57e9b98e41 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 92c66ee829b99a860a90f62ef16df3e42f92edac 0d470d36551058e3f728574308b815a80bca710f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 92c66ee829b99a860a90f62ef16df3e42f92edac e7537735028c3ad4b0bfc02ff8fa2a1a28aa04fe git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.15","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.15 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/fwctl/pds/main.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"9e3f18883a98420a3b8873c6f894bc57e9b98e41","status":"affected","version":"92c66ee829b99a860a90f62ef16df3e42f92edac","versionType":"git"},{"lessThan":"0d470d36551058e3f728574308b815a80bca710f","status":"affected","version":"92c66ee829b99a860a90f62ef16df3e42f92edac","versionType":"git"},{"lessThan":"e7537735028c3ad4b0bfc02ff8fa2a1a28aa04fe","status":"affected","version":"92c66ee829b99a860a90f62ef16df3e42f92edac","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/fwctl/pds/main.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.15"},{"lessThan":"6.15","status":"unaffected","version":"0","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":"6.18.34","versionStartIncluding":"6.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.11","versionStartIncluding":"6.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1","versionStartIncluding":"6.15","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nfwctl: pds: Validate RPC input size before parsing\n\nThe fwctl core allocates the device-specific RPC input buffer with\nfwctl_rpc.in_len and passes that buffer to the driver callback.\n\npdsfc_fw_rpc() casts the buffer to struct fwctl_rpc_pds and then calls\npdsfc_validate_rpc(), which reads fields from that structure before\nchecking that the input buffer is large enough to contain it. A short\nin_len can make pds_fwctl read beyond the allocation.\n\nReject pds RPC buffers that are smaller than struct fwctl_rpc_pds before\nparsing any pds-specific fields."}],"providerMetadata":{"dateUpdated":"2026-07-19T15:40:06.185Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/9e3f18883a98420a3b8873c6f894bc57e9b98e41"},{"url":"https://git.kernel.org/stable/c/0d470d36551058e3f728574308b815a80bca710f"},{"url":"https://git.kernel.org/stable/c/e7537735028c3ad4b0bfc02ff8fa2a1a28aa04fe"}],"title":"fwctl: pds: Validate RPC input size before parsing","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-64101","datePublished":"2026-07-19T15:40:06.185Z","dateReserved":"2026-07-19T07:54:57.033Z","dateUpdated":"2026-07-19T15:40:06.185Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-19 16:17:51","lastModifiedDate":"2026-07-19 16:17:51","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"64101","Ordinal":"1","Title":"fwctl: pds: Validate RPC input size before parsing","CVE":"CVE-2026-64101","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"64101","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nfwctl: pds: Validate RPC input size before parsing\n\nThe fwctl core allocates the device-specific RPC input buffer with\nfwctl_rpc.in_len and passes that buffer to the driver callback.\n\npdsfc_fw_rpc() casts the buffer to struct fwctl_rpc_pds and then calls\npdsfc_validate_rpc(), which reads fields from that structure before\nchecking that the input buffer is large enough to contain it. A short\nin_len can make pds_fwctl read beyond the allocation.\n\nReject pds RPC buffers that are smaller than struct fwctl_rpc_pds before\nparsing any pds-specific fields.","Type":"Description","Title":"fwctl: pds: Validate RPC input size before parsing"}]}}}