{"cve":"CVE-2026-74673","nvd":{"published":"2026-08-22T16:16:41.347","modified":"2026-10-14T13:10:00.187","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nInput: evdev - fix information leak in evdev_pass_values()\n\nIn evdev_pass_values(), the input_event structure is allocated on the\nkernel stack and populated field-by-field. However, it is never fully\ninitialized. On architectures where struct input_event contains explicit\nor implicit padding (such as the 32-bit __pad field on SPARC64), these\npadding bytes are left uninitialized.\n\nWhen this event structure is subsequently passed to the client buffer\nand later copied to userspace, the uninitialized padding bytes leak\nkernel stack memory, potentially exposing sensitive information.\n\nSimilar issues exist in __evdev_queue_syn_dropped and __pass_event.\n\nFix this by explicitly zeroing the entire event structure with memset()\nbefore populating its fields. This ensures all padding bytes are cleared\nbefore the data crosses the security boundary.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/06a286b320236508d02ab2ccc9496352748652a8","https://git.kernel.org/stable/c/7d17e9454a9af3ec7aebb88b41a9deedd5b19a6b","https://git.kernel.org/stable/c/7e55ca1080f09d9f7112c7f20ac31f682c1f2374","https://git.kernel.org/stable/c/90f305f2c7a30257c683e13f4bf7c798eea992a0","https://git.kernel.org/stable/c/bd3c4108a56de34380edab670065e86283cb3029"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:49:38.260478770+00:00"},"epss":{"cve":"CVE-2026-74673","score":0.00177,"percentile":0.07159,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}