{ "document": { "category": "csaf_base", "csaf_version": "2.0", "distribution": { "tlp": { "label": "WHITE" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this portal to enhance access to its information and vulnerabilities. The use of this information is subject to the following terms and conditions:\n\nThe vulnerabilities disclosed in this portal are gathered by NCSC-NL from a variety of open sources, which the user can retrieve from other platforms. NCSC-NL makes every reasonable effort to ensure that the content of this portal is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or real-time keeping up-to-date. NCSC-NL does not control nor guarantee the accuracy, relevance, timeliness or completeness of information obtained from these external sources. The vulnerabilities disclosed in this portal are intended solely for the convenience of professional parties to take appropriate measures to manage the risks posed to the cybersecurity. No rights can be derived from the information provided therein.\n\nNCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of the vulnerabilities disclosed in this portal. This includes damage resulting from the inaccuracy of incompleteness of the information contained in it.\nThe information on this page is subject to Dutch law. All disputes related to or arising from the use of this portal regarding the disclosure of vulnerabilities will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings." } ], "publisher": { "category": "coordinator", "contact_details": "cert@ncsc.nl", "name": "National Cyber Security Centre", "namespace": "https://www.ncsc.nl/" }, "title": "CVE-2026-23416", "tracking": { "current_release_date": "2026-04-03T08:36:08.486473Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-23416", "initial_release_date": "2026-04-02T12:27:30.127120Z", "revision_history": [ { "date": "2026-04-02T12:27:30.127120Z", "number": "1", "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| References created (3)." }, { "date": "2026-04-02T12:27:37.441404Z", "number": "2", "summary": "NCSC Score created." }, { "date": "2026-04-02T12:38:44.561212Z", "number": "3", "summary": "Source created.| CVE status created. (valid)| Description created for source.| Products created (3).| Products connected (5).| References created (3)." }, { "date": "2026-04-02T12:38:47.170186Z", "number": "4", "summary": "NCSC Score updated." }, { "date": "2026-04-02T15:22:26.830378Z", "number": "5", "summary": "Source connected.| CVE status created. (valid)| EPSS created." }, { "date": "2026-04-02T15:22:36.693249Z", "number": "6", "summary": "NCSC Score updated." }, { "date": "2026-04-02T18:44:53.581580Z", "number": "7", "summary": "Source created.| CVE status created. (valid)| Products connected (2)." }, { "date": "2026-04-03T00:27:44.070724Z", "number": "8", "summary": "Source created.| CVE status created. (valid)| Description created for source.| Products connected (13).| Product Identifiers created (5).| References created (3).| CWES updated (1)." }, { "date": "2026-04-03T00:27:47.254318Z", "number": "9", "summary": "NCSC Score updated." }, { "date": "2026-04-03T06:43:51.827355Z", "number": "10", "summary": "Description created for source." } ], "status": "interim", "version": "10" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:git/6c2da14ae1e0a0146587381594559027bd46c059|<2697dd8ae721db4f6a53d4f4cbd438212a80f8dc", "product": { "name": "vers:git/6c2da14ae1e0a0146587381594559027bd46c059|<2697dd8ae721db4f6a53d4f4cbd438212a80f8dc", "product_id": "CSAFPID-5984708" } }, { "category": "product_version_range", "name": "vers:git/6c2da14ae1e0a0146587381594559027bd46c059|<40b3f4700e5535fbe74738cebb9379a40ec66bed", "product": { "name": "vers:git/6c2da14ae1e0a0146587381594559027bd46c059|<40b3f4700e5535fbe74738cebb9379a40ec66bed", "product_id": "CSAFPID-5984706" } }, { "category": "product_version_range", "name": "vers:git/6c2da14ae1e0a0146587381594559027bd46c059|<83737e34b83a23b2a9bcf586b058b2c2a54c7c6b", "product": { "name": "vers:git/6c2da14ae1e0a0146587381594559027bd46c059|<83737e34b83a23b2a9bcf586b058b2c2a54c7c6b", "product_id": "CSAFPID-5984707" } }, { "category": "product_version_range", "name": "vers:semver/6.18.21|<=6.18.*", "product": { "name": "vers:semver/6.18.21|<=6.18.*", "product_id": "CSAFPID-5984170" } }, { "category": "product_version_range", "name": "vers:semver/6.19.11|<=6.19.*", "product": { "name": "vers:semver/6.19.11|<=6.19.*", "product_id": "CSAFPID-5984171" } }, { "category": "product_version_range", "name": "vers:semver/<6.17", "product": { "name": "vers:semver/<6.17", "product_id": "CSAFPID-5042775" } }, { "category": "product_version_range", "name": "vers:unknown/6.17", "product": { "name": "vers:unknown/6.17", "product_id": "CSAFPID-5042774" } }, { "category": "product_version_range", "name": "vers:unknown/7.0-rc6|<=*", "product": { "name": "vers:unknown/7.0-rc6|<=*", "product_id": "CSAFPID-5971751" } } ], "category": "product_name", "name": "Linux" } ], "category": "vendor", "name": "Linux" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/10", "product": { "name": "vers:rpm/10", "product_id": "CSAFPID-2858634", "product_identification_helper": { "cpe": "cpe:/o:redhat:enterprise_linux:10" } } } ], "category": "product_name", "name": "Red Hat Enterprise Linux 10" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/6", "product": { "name": "vers:rpm/6", "product_id": "CSAFPID-1439321", "product_identification_helper": { "cpe": "cpe:/o:redhat:enterprise_linux:6" } } } ], "category": "product_name", "name": "Red Hat Enterprise Linux 6" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/7", "product": { "name": "vers:rpm/7", "product_id": "CSAFPID-1439315", "product_identification_helper": { "cpe": "cpe:/o:redhat:enterprise_linux:7" } } } ], "category": "product_name", "name": "Red Hat Enterprise Linux 7" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/8", "product": { "name": "vers:rpm/8", "product_id": "CSAFPID-1439317", "product_identification_helper": { "cpe": "cpe:/o:redhat:enterprise_linux:8" } } } ], "category": "product_name", "name": "Red Hat Enterprise Linux 8" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/9", "product": { "name": "vers:rpm/9", "product_id": "CSAFPID-1439319", "product_identification_helper": { "cpe": "cpe:/a:redhat:enterprise_linux:9" } } } ], "category": "product_name", "name": "Red Hat Enterprise Linux 9" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-2858635" } } ], "category": "product_name", "name": "kernel" } ], "category": "product_family", "name": "Red Hat Enterprise Linux 10" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-1453376" } } ], "category": "product_name", "name": "kernel" } ], "category": "product_family", "name": "Red Hat Enterprise Linux 6" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-1453377" } } ], "category": "product_name", "name": "kernel" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-1453378" } } ], "category": "product_name", "name": "kernel-rt" } ], "category": "product_family", "name": "Red Hat Enterprise Linux 7" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-1453379" } } ], "category": "product_name", "name": "kernel" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-1453380" } } ], "category": "product_name", "name": "kernel-rt" } ], "category": "product_family", "name": "Red Hat Enterprise Linux 8" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-1453381" } } ], "category": "product_name", "name": "kernel" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-1453382" } } ], "category": "product_name", "name": "kernel-rt" } ], "category": "product_family", "name": "Red Hat Enterprise Linux 9" } ], "category": "vendor", "name": "Red Hat" }, { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:deb/*", "product": { "name": "vers:deb/*", "product_id": "CSAFPID-2036022" } } ], "category": "product_name", "name": "linux" } ], "category": "product_family", "name": "bookworm" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:deb/*", "product": { "name": "vers:deb/*", "product_id": "CSAFPID-2036023" } } ], "category": "product_name", "name": "linux" } ], "category": "product_family", "name": "bullseye" } ], "category": "vendor", "name": "Debian" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-23416", "cwe": { "id": "CWE-825", "name": "Expired Pointer Dereference" }, "notes": [ { "category": "description", "text": "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.", "title": "nvd - https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-23416" }, { "category": "description", "text": "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.", "title": "cveprojectv5 - https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/23xxx/CVE-2026-23416.json" }, { "category": "description", "text": "A flaw was found in the Linux kernel. An issue in the memory management (mm/mseal) component, specifically during the merging of Virtual Memory Areas (VMAs), could lead to incorrect updates of VMA end pointers. This could result in stale memory pointers and incorrect starting points for subsequent memory operations, potentially causing system instability or denial of service.", "title": "redhat - https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-23416.json" }, { "category": "description", "text": "In the Linux kernel, the following vulnerability has been resolved: mm/mseal: update VMA end correctly on merge Previously we stored the end of the current VMA in curr_end, and then upon iterating to the next VMA updated curr_start to curr_end to advance to the next VMA. However, this doesn't take into account the fact that a VMA might be updated due to a merge by vma_modify_flags(), which can result in curr_end being stale and thus, upon setting curr_start to curr_end, ending up with an incorrect curr_start on the next iteration. Resolve the issue by setting curr_end to vma->vm_end unconditionally to ensure this value remains updated should this occur. While we're here, eliminate this entire class of bug by simply setting const curr_[start/end] to be clamped to the input range and VMAs, which also happens to simplify the logic.", "title": "debian - https://security-tracker.debian.org/tracker/CVE-2026-23416" }, { "category": "other", "text": "0.00017", "title": "EPSS" }, { "category": "other", "text": "4.2", "title": "NCSC Score" }, { "category": "other", "text": "Is related to an uncommon cwe id", "title": "NCSC Score top increasing factors" }, { "category": "other", "text": "The value of the most recent CVSS (V3) score, Is related to a product by vendor Linux", "title": "NCSC Score top decreasing factors" } ], "product_status": { "known_affected": [ "CSAFPID-5042774", "CSAFPID-5984706", "CSAFPID-5984707", "CSAFPID-5984708" ], "known_not_affected": [ "CSAFPID-5042775", "CSAFPID-5971751", "CSAFPID-5984170", "CSAFPID-5984171", "CSAFPID-2036022", "CSAFPID-2036023", "CSAFPID-1439315", "CSAFPID-1439317", "CSAFPID-1439319", "CSAFPID-1439321", "CSAFPID-1453376", "CSAFPID-1453377", "CSAFPID-1453378", "CSAFPID-1453379", "CSAFPID-1453380", "CSAFPID-1453381", "CSAFPID-1453382", "CSAFPID-2858634", "CSAFPID-2858635" ] }, "references": [ { "category": "external", "summary": "Source - nvd", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-23416" }, { "category": "external", "summary": "Source - cveprojectv5", "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/23xxx/CVE-2026-23416.json" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0" }, { "category": "external", "summary": "Source - debian", "url": "https://security-tracker.debian.org/tracker/CVE-2026-23416" }, { "category": "external", "summary": "Source - redhat", "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-23416.json" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd", "url": "https://git.kernel.org/stable/c/2697dd8ae721db4f6a53d4f4cbd438212a80f8dc" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd", "url": "https://git.kernel.org/stable/c/40b3f4700e5535fbe74738cebb9379a40ec66bed" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd", "url": "https://git.kernel.org/stable/c/83737e34b83a23b2a9bcf586b058b2c2a54c7c6b" }, { "category": "external", "summary": "Reference - redhat", "url": "https://www.cve.org/CVERecord?id=CVE-2026-23416" }, { "category": "external", "summary": "Reference - redhat", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23416" }, { "category": "external", "summary": "Reference - redhat", "url": "https://lore.kernel.org/linux-cve-announce/2026040204-CVE-2026-23416-2941@gregkh/T" } ], "title": "CVE-2026-23416" } ] }