{"cve":"CVE-2021-47003","nvd":{"published":"2024-02-28T09:15:38.303","modified":"2026-06-17T04:16:08.757","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: idxd: Fix potential null dereference on pointer status\n\nThere are calls to idxd_cmd_exec that pass a null status pointer however\na recent commit has added an assignment to *status that can end up\nwith a null pointer dereference.  The function expects a null status\npointer sometimes as there is a later assignment to *status where\nstatus is first null checked.  Fix the issue by null checking status\nbefore making the assignment.\n\nAddresses-Coverity: (\"Explicit null dereferenced\")","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-476"],"references":["https://git.kernel.org/stable/c/2280b4cc29d8cdd2be3d1b2d1ea4f958e2131c97","https://git.kernel.org/stable/c/28ac8e03c43dfc6a703aa420d18222540b801120","https://git.kernel.org/stable/c/5756f757c72501ef1a16f5f63f940623044180e9","https://git.kernel.org/stable/c/7bc402f843e7817a4a808e7b9ab0bcd7ffd55bfa","https://git.kernel.org/stable/c/2280b4cc29d8cdd2be3d1b2d1ea4f958e2131c97"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:45:59.823092188+00:00"},"epss":{"cve":"CVE-2021-47003","score":0.00236,"percentile":0.14576,"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."]}