{ "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-2026-89859-els_os-amazonlinux2els.json" } ], "tracking": { "current_release_date": "2026-11-07T21:44:21Z", "generator": { "date": "2026-11-07T21:44:21Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2026-89859-ELS_OS-AMAZONLINUX2ELS", "initial_release_date": "2026-09-16T11:16:00Z", "revision_history": [ { "date": "2026-09-16T11:16:00Z", "number": "1", "summary": "Initial version" }, { "date": "2026-11-07T21:44:21Z", "number": "2", "summary": "Official Publication" } ], "status": "final", "version": "2" }, "title": "Security 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"vulnerabilities": [ { "cve": "CVE-2026-89859", "notes": [ { "category": "description", "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Zero dport diagnostics buffer to avoid info leak\n\nqla2x00_do_dport_diagnostics() allocates the qla_dport_diag response\nbuffer with kmalloc_obj() (non-zeroing) and, on success, copies the full\nsizeof(*dd) back to user space via sg_copy_from_buffer(). The inbound\nsg_copy_to_buffer() only fills as many bytes as the user request payload\nprovides, and qla26xx_dport_diagnostics() zeroes only dd->buf. The\noptions and unused[] fields are therefore copied out uninitialized,\nleaking kernel heap contents to user space.\n\nAllocate with kzalloc_obj(), matching qla2x00_do_dport_diagnostics_v2().", "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", 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URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2026-89859" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/2ecc30066c2284d2ed11bbd576ec97156b384054", "url": "https://git.kernel.org/stable/c/2ecc30066c2284d2ed11bbd576ec97156b384054" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/504b177ad58c45be7e1cfa81f9b42f7f040737c5", "url": "https://git.kernel.org/stable/c/504b177ad58c45be7e1cfa81f9b42f7f040737c5" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/5dfc77099c7d9fde9520a229794b0154d7ccccc1", "url": "https://git.kernel.org/stable/c/5dfc77099c7d9fde9520a229794b0154d7ccccc1" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/9fc03be982763a131913f84fe73b240ae45bca37", "url": "https://git.kernel.org/stable/c/9fc03be982763a131913f84fe73b240ae45bca37" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/a152edab3854f01dd2daf3eaf8f32cbabdb3834e", "url": "https://git.kernel.org/stable/c/a152edab3854f01dd2daf3eaf8f32cbabdb3834e" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/c3e4c716909a053391b06a9a816c8588b652e3d2", "url": "https://git.kernel.org/stable/c/c3e4c716909a053391b06a9a816c8588b652e3d2" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/d6e2411516bb95e52cb74c9c56b60ad2548a2730", "url": "https://git.kernel.org/stable/c/d6e2411516bb95e52cb74c9c56b60ad2548a2730" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/eeef4fa993b3f962de9b45999f12ff25a5c79ce7", "url": "https://git.kernel.org/stable/c/eeef4fa993b3f962de9b45999f12ff25a5c79ce7" } ], "release_date": "2026-09-16T11:16:00Z", "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", "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" ], "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1793883221" }, { "category": "none_available", "date": "2026-09-16T11:16:00Z", "details": "Affected", "product_ids": [ "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", "Amazon-Linux-2:bpftool-0:5.10.272-271.1109.amzn2.tuxcare.els1.x86_64", 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