{"cve":"CVE-2026-31440","nvd":{"published":"2026-04-22T14:16:37.390","modified":"2026-06-17T10:33:43.533","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: idxd: Fix leaking event log memory\n\nDuring the device remove process, the device is reset, causing the\nconfiguration registers to go back to their default state, which is\nzero. As the driver is checking if the event log support was enabled\nbefore deallocating, it will fail if a reset happened before.\n\nDo not check if the support was enabled, the check for 'idxd->evl'\nbeing valid (only allocated if the HW capability is available) is\nenough.","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-401"],"references":["https://git.kernel.org/stable/c/695b491dc3f20365fd5821f22e25dbe3c1c20cbc","https://git.kernel.org/stable/c/9dfa00967e6ef43a9dd0887fe5c3a721a39da92e","https://git.kernel.org/stable/c/d94f9b0ba28a205caf95902ee88b42bdb8af83d0","https://git.kernel.org/stable/c/ee66bc29578391c9b48523dc9119af67bd5c7c0f","https://git.kernel.org/stable/c/facd0012708e942fc12890708738aebde497564e"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:30:49.762551342+00:00"},"epss":{"cve":"CVE-2026-31440","score":0.00122,"percentile":0.01959,"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."]}