{ "document": { "aggregate_severity": { "text": "Critical" }, "category": "csaf_vex", "csaf_version": "2.0", "distribution": { "text": "TuxCare License Agreement", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Cloud Linux Inc. and provide a link to the original.", "title": "Terms of Use" } ], "publisher": { "category": "vendor", "contact_details": "https://tuxcare.com/contact/", "name": "TuxCare", "namespace": "https://tuxcare.com/" }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://security.tuxcare.com/csaf/v2/els_os/amazonlinux2els/vex/2026/cve-2026-98456-els_os-amazonlinux2els.json" } ], "tracking": { "current_release_date": "2026-11-07T21:41:11Z", "generator": { "date": "2026-11-07T21:41:11Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2026-98456-ELS_OS-AMAZONLINUX2ELS", "initial_release_date": "2026-10-18T16:16:00Z", "revision_history": [ { "date": "2026-10-18T16:16:00Z", "number": "1", "summary": "Initial version" }, { "date": "2026-11-07T21:41:11Z", "number": "2", "summary": "Official Publication" } ], "status": "final", "version": "2" }, "title": "Security 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"vulnerabilities": [ { "cve": "CVE-2026-98456", "notes": [ { "category": "description", "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: mgmt: fix race in read_unconf_index_list()\n\nread_unconf_index_list() counts unconfigured controllers before allocating\nits response, then checks the device flags again while filling it.\n\nhci_dev_list_lock stabilizes list membership, but it does not serialize the\nper-device flags. During asynchronous controller setup, the worker can set\nHCI_UNCONFIGURED and clear HCI_SETUP between the two passes. A controller\nomitted from the allocation count can then become eligible for the fill\npass, causing an out-of-bounds write to rp->index[].\n\nAllocate space for every device on hci_dev_list. Since list membership\ncannot change while hci_dev_list_lock is held, the response remains large\nenough regardless of flag transitions. The reported count and response\nlength still include only eligible unconfigured controllers.", "title": "Vulnerability description" } ], "product_status": { "fixed": [ "Amazon-Linux-2:bpftool-0:5.10.273-274.1999.amzn2.tuxcare.els1.x86_64", "Amazon-Linux-2:kernel-0:5.10.273-274.1999.amzn2.tuxcare.els1.x86_64", "Amazon-Linux-2:kernel-devel-0:5.10.273-274.1999.amzn2.tuxcare.els1.x86_64", "Amazon-Linux-2:kernel-headers-0:5.10.273-274.1999.amzn2.tuxcare.els1.x86_64", "Amazon-Linux-2:kernel-tools-0:5.10.273-274.1999.amzn2.tuxcare.els1.x86_64", "Amazon-Linux-2:kernel-tools-devel-0:5.10.273-274.1999.amzn2.tuxcare.els1.x86_64", "Amazon-Linux-2:perf-0:5.10.273-274.1999.amzn2.tuxcare.els1.x86_64", "Amazon-Linux-2:python-perf-0:5.10.273-274.1999.amzn2.tuxcare.els1.x86_64" ], "known_affected": [ "Amazon-Linux-2:bpftool-0:5.10.259-258.1046.amzn2.tuxcare.els1.x86_64", "Amazon-Linux-2:bpftool-0:5.10.259-258.1046.amzn2.tuxcare.els2.x86_64", 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"external", "summary": "https://git.kernel.org/stable/c/2e8bba0360d1379bfa8da47c8f5dadbb10a3fba1", "url": "https://git.kernel.org/stable/c/2e8bba0360d1379bfa8da47c8f5dadbb10a3fba1" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/416546cd6a54e9b68f2b91bc680b1ee17dcd77a1", "url": "https://git.kernel.org/stable/c/416546cd6a54e9b68f2b91bc680b1ee17dcd77a1" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/524e0450dd9a396f99a81b045219b0e2ea0dab57", "url": "https://git.kernel.org/stable/c/524e0450dd9a396f99a81b045219b0e2ea0dab57" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/76dc7e0297f6f7ebefc36a69251e3f4a676d9853", "url": "https://git.kernel.org/stable/c/76dc7e0297f6f7ebefc36a69251e3f4a676d9853" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/8ddf962c76432a10a6cb80042875cbc48a9c056b", "url": "https://git.kernel.org/stable/c/8ddf962c76432a10a6cb80042875cbc48a9c056b" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/9c32455f490b960efccedd041c7aabb1a04c5cc4", "url": "https://git.kernel.org/stable/c/9c32455f490b960efccedd041c7aabb1a04c5cc4" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/b5dbb41b212c50c095a4dbee3017a84fe94f033b", "url": "https://git.kernel.org/stable/c/b5dbb41b212c50c095a4dbee3017a84fe94f033b" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/fa6f79bb0009406bb11e6912b53ab7c564d6f06b", "url": "https://git.kernel.org/stable/c/fa6f79bb0009406bb11e6912b53ab7c564d6f06b" } ], "release_date": "2026-10-18T16:16:00Z", "remediations": [ { "category": "vendor_fix", "date": "2026-11-05T12:53:42.499096Z", "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1793883221", "product_ids": [ "Amazon-Linux-2:bpftool-0:5.10.273-274.1999.amzn2.tuxcare.els1.x86_64", "Amazon-Linux-2:kernel-0:5.10.273-274.1999.amzn2.tuxcare.els1.x86_64", 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