{ "document": { "aggregate_severity": { "text": "High" }, "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/debian10els/vex/2024/cve-2024-26885-els_os-debian10els.json" } ], "tracking": { "current_release_date": "2026-08-25T12:53:19Z", "generator": { "date": "2026-08-25T12:53:19Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2024-26885-ELS_OS-DEBIAN10ELS", "initial_release_date": "2024-04-17T10:27:40Z", "revision_history": [ { "date": "2024-04-17T10:27:40Z", "number": "1", "summary": "Initial version" }, { "date": "2026-08-25T12:53:19Z", "number": "2", "summary": "Official Publication" } ], "status": "final", "version": "2" }, "title": "Security update on 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"category": "default_component_of", "full_product_name": { "name": "linux-image-4.19.0-28-amd64-unsigned-0:4.19.325-1+tuxcare.els1.amd64 as a component of Debian 10", "product_id": "Debian-10:linux-image-4.19.0-28-amd64-unsigned-0:4.19.325-1+tuxcare.els1.amd64" }, "product_reference": "linux-image-4.19.0-28-amd64-unsigned-0:4.19.325-1+tuxcare.els1.amd64", "relates_to_product_reference": "Debian-10" } ] }, "vulnerabilities": [ { "cve": "CVE-2024-26885", "cwe": { "id": "CWE-119", "name": "Improper Restriction of Operations within the Bounds of a Memory Buffer" }, "notes": [ { "category": "description", "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix DEVMAP_HASH overflow check on 32-bit arches\n\nThe devmap code allocates a number hash buckets equal to the next power\nof two of the max_entries value provided when creating the map. When\nrounding up to the next power of two, the 32-bit variable storing the\nnumber of buckets can overflow, and the code checks for overflow by\nchecking if the truncated 32-bit value is equal to 0. However, on 32-bit\narches the rounding up itself can overflow mid-way through, because it\nends up doing a left-shift of 32 bits on an unsigned long value. If the\nsize of an unsigned long is four bytes, this is undefined behaviour, so\nthere is no guarantee that we'll end up with a nice and tidy 0-value at\nthe end.\n\nSyzbot managed to turn this into a crash on arm32 by creating a\nDEVMAP_HASH with max_entries > 0x80000000 and then trying to update it.\nFix this by moving the overflow check to before the rounding up\noperation.", "title": "Vulnerability description" }, { "category": "other", "text": "TuxCare has assessed that this vulnerability does not impact any currently supported TuxCare products. This evaluation may change as new information becomes available. For additional details regarding this vulnerability and affected products, refer to the provided references.", "title": "Statement" } ], "product_status": { "known_not_affected": [ "Debian-10:hyperv-daemons-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:libbpf-dev-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:libbpf4.19-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:libcpupower-dev-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:libcpupower1-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-compiler-gcc-8-x86-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-config-4.19-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-cpupower-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-doc-4.19-0:4.19.325-1+tuxcare.els1.all", "Debian-10:linux-headers-4.19.0-28-all-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-headers-4.19.0-28-all-amd64-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-headers-4.19.0-28-amd64-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-headers-4.19.0-28-common-0:4.19.325-1+tuxcare.els1.all", "Debian-10:linux-image-4.19.0-28-amd64-unsigned-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-image-amd64-signed-template-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-kbuild-4.19-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-libc-dev-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-perf-4.19-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-source-4.19-0:4.19.325-1+tuxcare.els1.all", "Debian-10:linux-support-4.19.0-28-0:4.19.325-1+tuxcare.els1.all" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2024-26885" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/1f5e352b9088211fa5eb4e1639cd365f4f7d2f65", "url": "https://git.kernel.org/stable/c/1f5e352b9088211fa5eb4e1639cd365f4f7d2f65" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/22079b3a423382335f47d9ed32114e6c9fe88d7c", "url": "https://git.kernel.org/stable/c/22079b3a423382335f47d9ed32114e6c9fe88d7c" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/250051acc21f9d4c5c595e4fcb55986ea08c4691", "url": "https://git.kernel.org/stable/c/250051acc21f9d4c5c595e4fcb55986ea08c4691" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/281d464a34f540de166cee74b723e97ac2515ec3", "url": "https://git.kernel.org/stable/c/281d464a34f540de166cee74b723e97ac2515ec3" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/4b81a9f92b3676cb74b907a7a209b3d15bd9a7f9", "url": "https://git.kernel.org/stable/c/4b81a9f92b3676cb74b907a7a209b3d15bd9a7f9" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/c826502bed93970f2fd488918a7b8d5f1d30e2e3", "url": "https://git.kernel.org/stable/c/c826502bed93970f2fd488918a7b8d5f1d30e2e3" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/e89386f62ce9a9ab9a94835a9890883c23d9d52c", "url": "https://git.kernel.org/stable/c/e89386f62ce9a9ab9a94835a9890883c23d9d52c" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/edf7990baa48de5097daa9ac02e06cb4c798a737", "url": "https://git.kernel.org/stable/c/edf7990baa48de5097daa9ac02e06cb4c798a737" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/225da02acdc97af01b6bc6ce1a3e5362bf01d3fb", "url": "https://git.kernel.org/stable/c/225da02acdc97af01b6bc6ce1a3e5362bf01d3fb" }, { "category": "external", "summary": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html", "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html" }, { "category": "external", "summary": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html", "url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html" } ], "release_date": "2024-04-17T10:27:40Z", "threats": [ { "category": "impact", "details": "Important" }, { "category": "impact", "date": "2026-08-22T07:53:25.059415Z", "details": "CVE-2024-26885 does not affect debian10els because the vulnerable code was never introduced. The bug is a roundup_pow_of_two() overflow in the BPF DEVMAP_HASH map type's initialization on 32-bit arches. This branch's BPF devmap has no DEVMAP_HASH map type.", "product_ids": [ "Debian-10:hyperv-daemons-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:libbpf-dev-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:libbpf4.19-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:libcpupower-dev-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:libcpupower1-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-compiler-gcc-8-x86-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-config-4.19-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-cpupower-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-doc-4.19-0:4.19.325-1+tuxcare.els1.all", "Debian-10:linux-headers-4.19.0-28-all-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-headers-4.19.0-28-all-amd64-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-headers-4.19.0-28-amd64-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-headers-4.19.0-28-common-0:4.19.325-1+tuxcare.els1.all", "Debian-10:linux-image-4.19.0-28-amd64-unsigned-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-image-amd64-signed-template-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-kbuild-4.19-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-libc-dev-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-perf-4.19-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-source-4.19-0:4.19.325-1+tuxcare.els1.all", "Debian-10:linux-support-4.19.0-28-0:4.19.325-1+tuxcare.els1.all" ] } ] } ] }