{"apiVersion":"1.0","identifier":"CVE-2026-80559","description":"In the Linux kernel, the following vulnerability has been resolved: Input: sur40 - fix input device registration ordering In sur40_probe(), input_register_device() was previously called early before the V4L2 video device and vb2_queue components were fully initialized. If userspace opened the input device immediately upon registration, sur40_open() would trigger and start the sur40_poll() worker thread. This worker thread invokes sur40_process_video() and accesses the uninitialized vb2_queue structure, leading to a data race and potential system crash. Furthermore, if V4L2 or video registration failed after input_register_device() succeeded, the error path fell through to calling input_free_device() on a successfully registered device instead of input_unregister_device(), corrupting input core state. Move input_register_device() to the very end of sur40_probe(). This ensures the V4L2 and video queue structures are fully initialized before polling can start, and naturally resolves the error path bug since input_free_device() is now only called when input registration has not yet occurred. To maintain strict LIFO (Last-In, First-Out) teardown ordering, also move input_unregister_device() to the very beginning of sur40_disconnect(). This guarantees that the input polling worker thread is stopped before V4L2 video components or control handlers are unregistered.","publishedAt":"2026-08-26T15:17:10","lastModifiedAt":"2026-08-27T06:17:40","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-80559","cvssScore":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","epssProbability":0.00129,"riskScore":0.79,"affectedProduct":"Linux kernel","affectedVersions":"unknown","vulnerabilityType":"Kernel","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-80559","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-80559","en":"https://www.redsauce.net/en/cves/CVE-2026-80559","fr":"https://www.redsauce.net/fr/cves/CVE-2026-80559","pt":"https://www.redsauce.net/pt/cves/CVE-2026-80559","de":"https://www.redsauce.net/de/cves/CVE-2026-80559","sk":"https://www.redsauce.net/sk/cves/CVE-2026-80559","el":"https://www.redsauce.net/el/cves/CVE-2026-80559"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-80559"}}