{"cve":"CVE-2022-48735","nvd":{"published":"2024-06-20T12:15:11.890","modified":"2026-08-04T10:17:18.493","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: hda: Fix UAF of leds class devs at unbinding\n\nThe LED class devices that are created by HD-audio codec drivers are\nregistered via devm_led_classdev_register() and associated with the\nHD-audio codec device.  Unfortunately, it turned out that the devres\nrelease doesn't work for this case; namely, since the codec resource\nrelease happens before the devm call chain, it triggers a NULL\ndereference or a UAF for a stale set_brightness_delay callback.\n\nFor fixing the bug, this patch changes the LED class device register\nand unregister in a manual manner without devres, keeping the\ninstances in hda_gen_spec.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-416","CWE-476"],"references":["https://git.kernel.org/stable/c/0e629052f013eeb61494d4df2f1f647c2a9aef47","https://git.kernel.org/stable/c/549f8ffc7b2f7561bea7f90930b6c5104318e87b","https://git.kernel.org/stable/c/813e9f3e06d22e29872d4fd51b54992d89cf66c8","https://git.kernel.org/stable/c/a7de1002135cf94367748ffc695a29812d7633b5","https://git.kernel.org/stable/c/0e629052f013eeb61494d4df2f1f647c2a9aef47"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:52:00.836172422+00:00"},"epss":{"cve":"CVE-2022-48735","score":0.00234,"percentile":0.14362,"date":"2026-11-01"},"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."]}