{"cve":"CVE-2026-23259","nvd":{"published":"2026-03-18T18:16:24.353","modified":"2026-10-21T13:18:35.290","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nio_uring/rw: free potentially allocated iovec on cache put failure\n\nIf a read/write request goes through io_req_rw_cleanup() and has an\nallocated iovec attached and fails to put to the rw_cache, then it may\nend up with an unaccounted iovec pointer. Have io_rw_recycle() return\nwhether it recycled the request or not, and use that to gauge whether to\nfree a potential iovec or not.","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":[],"references":["https://git.kernel.org/stable/c/1d5f2329ab4df65c2ee011b986d8a6e05ad0f67c","https://git.kernel.org/stable/c/41cda4c66846c3bfcdeaf28444ccabbb55e64cf1","https://git.kernel.org/stable/c/4b9748055457ac3a0710bf210c229d01ea1b01b9"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-22T16:41:11.231219466+00:00"},"epss":{"cve":"CVE-2026-23259","score":0.00165,"percentile":0.05702,"date":"2026-10-25"},"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."]}