{"cve":"CVE-2026-23416","nvd":{"published":"2026-04-02T12:16:20.960","modified":"2026-06-17T10:21:32.470","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmm/mseal: update VMA end correctly on merge\n\nPreviously we stored the end of the current VMA in curr_end, and then upon\niterating to the next VMA updated curr_start to curr_end to advance to the\nnext VMA.\n\nHowever, this doesn't take into account the fact that a VMA might be\nupdated due to a merge by vma_modify_flags(), which can result in curr_end\nbeing stale and thus, upon setting curr_start to curr_end, ending up with\nan incorrect curr_start on the next iteration.\n\nResolve the issue by setting curr_end to vma->vm_end unconditionally to\nensure this value remains updated should this occur.\n\nWhile we're here, eliminate this entire class of bug by simply setting\nconst curr_[start/end] to be clamped to the input range and VMAs, which\nalso happens to simplify the logic.","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/2697dd8ae721db4f6a53d4f4cbd438212a80f8dc","https://git.kernel.org/stable/c/40b3f4700e5535fbe74738cebb9379a40ec66bed","https://git.kernel.org/stable/c/83737e34b83a23b2a9bcf586b058b2c2a54c7c6b"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:28:18.033120106+00:00"},"epss":{"cve":"CVE-2026-23416","score":0.00222,"percentile":0.12805,"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."]}