{ "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-2026-80861-els_os-amazonlinux2els.json" } ], "tracking": { "current_release_date": "2026-11-07T21:42:36Z", "generator": { "date": "2026-11-07T21:42:36Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2026-80861-ELS_OS-AMAZONLINUX2ELS", "initial_release_date": "2026-09-04T16:18:00Z", "revision_history": [ { "date": "2026-09-04T16:18:00Z", "number": "1", "summary": "Initial version" }, { "date": "2026-11-07T21:42:36Z", "number": "2", "summary": "Official Publication" } ], "status": "final", "version": "2" }, "title": "Security 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"vulnerabilities": [ { "cve": "CVE-2026-80861", "notes": [ { "category": "description", "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: xhci: bail out of setup if the controller is inaccessible\n\nxhci_gen_setup() locates the operational registers using the capability\nlength read from the very first register:\n\n\txhci->op_regs = hcd->regs +\n\t\tHC_LENGTH(readl(&xhci->cap_regs->hc_capbase));\n\nIf the controller is dead or has dropped off the bus, that read returns\n~0, HC_LENGTH() truncates it to 0xff, and op_regs ends up 0xff bytes\npast the page-aligned MMIO base, i.e. unaligned. The first access\nthrough it, xhci_halt() -> xhci_handshake() reading op_regs->status, is\nthen an unaligned readl() on device memory. arm64 faults on unaligned\ndevice accesses, so instead of xhci_handshake() catching the all-ones\nvalue and returning -ENODEV, setup oopses:\n\n xhci-pci-renesas 0005:08:00.0: Unable to change power state from D3cold to D0, device inaccessible\n xhci-pci-renesas 0005:08:00.0: xHCI Host Controller\n xhci-pci-renesas 0005:08:00.0: new USB bus registered, assigned bus number 1\n Unable to handle kernel paging request at virtual address ffff80030a770103\n ESR = 0x0000000096000021\n FSC = 0x21: alignment fault\n Internal error: Oops: 0000000096000021 [#1] SMP\n pc : xhci_halt [xhci_hcd]\n Call trace:\n xhci_halt\n xhci_gen_setup\n xhci_pci_setup\n usb_add_hcd\n usb_hcd_pci_probe\n xhci_pci_common_probe\n xhci_pci_renesas_probe\n\nThis was hit with a Renesas uPD720201 that failed to power up (\"Unable\nto change power state from D3cold to D0, device inaccessible\") yet still\nreached the HCD probe path.\n\nRead the capability register once, and if it reads back the all-ones\nvalue (as xhci_handshake() and xhci_reset() already test for), abort\nsetup with -ENODEV before op_regs is derived from it. Reading it once\nalso avoids re-reading a register that may change under a concurrent\nhot-removal.", "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/0b31744f70c5e06cce5fb660e02d057a3b9e0e37", "url": "https://git.kernel.org/stable/c/0b31744f70c5e06cce5fb660e02d057a3b9e0e37" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/15e62f969fecf459a0b873004cc5f4c5a6ba5fcc", "url": "https://git.kernel.org/stable/c/15e62f969fecf459a0b873004cc5f4c5a6ba5fcc" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/301f4a3303b21ea959a8294518ee883710498ac2", "url": "https://git.kernel.org/stable/c/301f4a3303b21ea959a8294518ee883710498ac2" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/70706dbcf122940f4e3595d7ba1445004cc00074", "url": "https://git.kernel.org/stable/c/70706dbcf122940f4e3595d7ba1445004cc00074" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/78203d5b54a40f0e36196ebf31c9c7a380fc8811", "url": "https://git.kernel.org/stable/c/78203d5b54a40f0e36196ebf31c9c7a380fc8811" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/99e78b54cc3d70e008bd1a30d43e13d652c773e0", "url": "https://git.kernel.org/stable/c/99e78b54cc3d70e008bd1a30d43e13d652c773e0" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/9f8b403d5f8c1ac361533c73fa449153a3c7fc6c", "url": "https://git.kernel.org/stable/c/9f8b403d5f8c1ac361533c73fa449153a3c7fc6c" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/bf84c6b0264947794fa783c324a6d874ca6657d8", "url": "https://git.kernel.org/stable/c/bf84c6b0264947794fa783c324a6d874ca6657d8" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/c051f66b621695ad7c8438a9497d79e1f4f05edb", "url": "https://git.kernel.org/stable/c/c051f66b621695ad7c8438a9497d79e1f4f05edb" } ], "release_date": "2026-09-04T16:18:00Z", "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": "2026-09-04T16:18:00Z", "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", 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