{"cve":"CVE-2023-52898","nvd":{"published":"2024-08-21T07:15:06.180","modified":"2026-06-17T06:43:53.307","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nxhci: Fix null pointer dereference when host dies\n\nMake sure xhci_free_dev() and xhci_kill_endpoint_urbs() do not race\nand cause null pointer dereference when host suddenly dies.\n\nUsb core may call xhci_free_dev() which frees the xhci->devs[slot_id]\nvirt device at the same time that xhci_kill_endpoint_urbs() tries to\nloop through all the device's endpoints, checking if there are any\ncancelled urbs left to give back.\n\nhold the xhci spinlock while freeing the virt device","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","score":4.7},"cwes":["CWE-476"],"references":["https://git.kernel.org/stable/c/081105213ff6f661c114781d469233c7d0e09c2e","https://git.kernel.org/stable/c/133b902378e4acbd824c29dd0d48570ad596e368","https://git.kernel.org/stable/c/6fac4b5cecb3928a0a81069aaa815a2edc8dd5a1","https://git.kernel.org/stable/c/a2bc47c43e70cf904b1af49f76d572326c08bca7","https://git.kernel.org/stable/c/c462ac871f49753eca86bb960f573b993976a5ea"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:54:16.205165117+00:00"},"epss":{"cve":"CVE-2023-52898","score":0.0024,"percentile":0.15158,"date":"2026-10-31"},"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."]}