{ "document": { "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/2026/cve-2026-64599-els_os-debian10els.json" } ], "tracking": { "current_release_date": "2026-08-25T12:52:55Z", "generator": { "date": "2026-08-25T12:52:55Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2026-64599-ELS_OS-DEBIAN10ELS", "initial_release_date": "2026-08-06T08:16:00Z", "revision_history": [ { "date": "2026-08-06T08:16:00Z", "number": "1", "summary": "Initial version" }, { "date": "2026-08-25T12:52:55Z", "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-2026-64599", "notes": [ { "category": "description", "text": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: amlogic - avoid double cleanup in meson_crypto_probe()\n\nWhen meson_allocate_chanlist() fails after a partial allocation, it already\nunwinds the allocated chanlist state through its local error path.\nmeson_crypto_probe() then jump to error_flow and calls\nmeson_free_chanlist() again, causing the same per-flow resources to be torn\ndown twice. In the reproduced failure path, the second teardown\nre-entered crypto_engine_exit() on an already destroyed worker and KASAN\nreported a slab-use-after-free in kthread_destroy_worker().\n\nPrevent double-free by handling partial allocation failures locally within\nmeson_allocate_chanlist() and skipping the outer cleanup path.\n\nThe bug was first flagged by an experimental analysis tool we are\ndeveloping for kernel memory-management bugs while analyzing\nv6.13-rc1. The tool is still under development and is not yet publicly\navailable.\n\nThe bug was reproduced in a QEMU x86_64 guest booted with KASAN on v7.1,\nusing the reproducer under tools/testing/meson_crypto_probe. The reproducer\nforces the second dma_alloc_attrs() call in the gxl-crypto probe path to\nreturn NULL, making meson_allocate_chanlist() fail after partial\ninitialization. On the unpatched kernel this reliably triggered a\nslab-use-after-free. With this fix applied, the same reproducer no longer\nemits any KASAN report and the probe fails cleanly with -ENOMEM.\n\n ==================================================================\n BUG: KASAN: slab-use-after-free in kthread_destroy_worker+0xb2/0xd0\n Read of size 8 at addr ff1100010c057a68 by task insmod/265\n\n CPU: 1 UID: 0 PID: 265 Comm: insmod Tainted: G O 7.1.0-rc2-00376-g810af9adc907-dirty #10 PREEMPT(lazy)\n Tainted: [O]=OOT_MODULE\n Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.15.0-1 04/01/2014\n Call Trace:\n \n dump_stack_lvl+0x68/0xa0\n print_report+0xcb/0x5e0\n ? __virt_addr_valid+0x21d/0x3f0\n ? kthread_destroy_worker+0xb2/0xd0\n ? kthread_destroy_worker+0xb2/0xd0\n kasan_report+0xca/0x100\n ? kthread_destroy_worker+0xb2/0xd0\n kthread_destroy_worker+0xb2/0xd0\n meson_crypto_probe+0x4d0/0xc10 [amlogic_gxl_crypto]\n platform_probe+0x99/0x140\n really_probe+0x1c6/0x6a0\n ? __pfx___device_attach_driver+0x10/0x10\n __driver_probe_device+0x248/0x310\n ? acpi_driver_match_device+0xb0/0x100\n driver_probe_device+0x48/0x210\n ? __pfx___device_attach_driver+0x10/0x10\n __device_attach_driver+0x160/0x320\n bus_for_each_drv+0x104/0x190\n ? __pfx_bus_for_each_drv+0x10/0x10\n ? _raw_spin_unlock_irqrestore+0x2c/0x50\n __device_attach+0x19d/0x3b0\n ? __pfx___device_attach+0x10/0x10\n ? do_raw_spin_unlock+0x53/0x220\n device_initial_probe+0x78/0xa0\n bus_probe_device+0x5b/0x130\n device_add+0xcfd/0x1430\n ? __pfx_device_add+0x10/0x10\n ? insert_resource+0x34/0x50\n ? lock_release+0xc9/0x290\n platform_device_add+0x24e/0x590\n ? __pfx_meson_crypto_probe_repro_init+0x10/0x10 [meson_crypto_probe_repro]\n meson_crypto_probe_repro_init+0x330/0xff0 [meson_crypto_probe_repro]\n do_one_initcall+0xc0/0x450\n ? __pfx_do_one_initcall+0x10/0x10\n ? _raw_spin_unlock_irqrestore+0x2c/0x50\n ? __create_object+0x59/0x80\n ? kasan_unpoison+0x27/0x60\n do_init_module+0x27b/0x7d0\n ? __pfx_do_init_module+0x10/0x10\n ? kasan_quarantine_put+0x84/0x1d0\n ? kfree+0x32c/0x510\n ? load_module+0x561e/0x5ff0\n load_module+0x54fe/0x5ff0\n ? __pfx_load_module+0x10/0x10\n ? security_file_permission+0x20/0x40\n ? kernel_read_file+0x23d/0x6e0\n ? mmap_region+0x235/0x4a0\n ? __pfx_kernel_read_file+0x10/0x10\n ? __file_has_perm+0x2c0/0x3e0\n init_module_from_file+0x158/0x180\n ? __pfx_init_module_from_file+0x10/0x10\n ? __lock_acquire+0x45a/0x1ba0\n ? idempotent_init_module+0x315/0x610\n ? lock_release+0xc9/0x290\n ? lock\n---truncated---", "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-2026-64599" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/5b452019a4127f63c1f2147237fc287d1581f606", "url": "https://git.kernel.org/stable/c/5b452019a4127f63c1f2147237fc287d1581f606" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/6d827ade51a24e18d81afb9f32756d339520a14c", "url": "https://git.kernel.org/stable/c/6d827ade51a24e18d81afb9f32756d339520a14c" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/6dda8406d8a3da2519c8b388d443d7357839cb63", "url": "https://git.kernel.org/stable/c/6dda8406d8a3da2519c8b388d443d7357839cb63" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/6effdbaca3cd8354540bdf42c7f5fb84412afeb7", "url": "https://git.kernel.org/stable/c/6effdbaca3cd8354540bdf42c7f5fb84412afeb7" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/84a00be9b736aa5dce902a290f62cbbbdcfab9ed", "url": "https://git.kernel.org/stable/c/84a00be9b736aa5dce902a290f62cbbbdcfab9ed" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/c2c48aa7a6be36d4c93da75d14d4b4f2f4168c81", "url": "https://git.kernel.org/stable/c/c2c48aa7a6be36d4c93da75d14d4b4f2f4168c81" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/c80360b4e85099fc3835378a96a59c0a2480fb07", "url": "https://git.kernel.org/stable/c/c80360b4e85099fc3835378a96a59c0a2480fb07" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/f30e2b879bda14bc3e1524fba6f8ab9ec119da90", "url": "https://git.kernel.org/stable/c/f30e2b879bda14bc3e1524fba6f8ab9ec119da90" } ], "release_date": "2026-08-06T08:16:00Z", "threats": [ { "category": "impact", "details": "Moderate" }, { "category": "impact", "date": "2026-08-22T12:55:09.219516Z", "details": "CVE-2026-64599 does not affect debian10els. The double-cleanup flaw is in the Amlogic GXL crypto-accelerator driver's probe (meson_crypto_probe), a driver added upstream in v5.4; it is not present in this kernel.", "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" ] } ] } ] }