{"cve":"CVE-2023-53304","nvd":{"published":"2025-09-16T17:15:35.240","modified":"2026-06-17T06:44:47.790","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nft_set_rbtree: fix overlap expiration walk\n\nThe lazy gc on insert that should remove timed-out entries fails to release\nthe other half of the interval, if any.\n\nCan be reproduced with tests/shell/testcases/sets/0044interval_overlap_0\nin nftables.git and kmemleak enabled kernel.\n\nSecond bug is the use of rbe_prev vs. prev pointer.\nIf rbe_prev() returns NULL after at least one iteration, rbe_prev points\nto element that is not an end interval, hence it should not be removed.\n\nLastly, check the genmask of the end interval if this is active in the\ncurrent generation.","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/50cbb9d195c197af671869c8cadce3bd483735a0","https://git.kernel.org/stable/c/8284a79136c384059e85e278da2210b809730287","https://git.kernel.org/stable/c/893cb3c3513cf661a0ff45fe0cfa83fe27131f76","https://git.kernel.org/stable/c/89a4d1a89751a0fbd520e64091873e19cc0979e8","https://git.kernel.org/stable/c/acaee227cf79c45a5d2d49c3e9a66333a462802c"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:10:08.713834912+00:00"},"epss":{"cve":"CVE-2023-53304","score":0.0016,"percentile":0.05108,"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."]}