{ "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-2026-68378-els_os-debian10els.json" } ], "tracking": { "current_release_date": "2026-08-25T12:52:56Z", "generator": { "date": "2026-08-25T12:52:56Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2026-68378-ELS_OS-DEBIAN10ELS", "initial_release_date": "2026-08-10T13:20:00Z", "revision_history": [ { "date": "2026-08-10T13:20:00Z", "number": "1", "summary": "Initial version" }, { "date": "2026-08-25T12:52:56Z", "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-2026-68378", "notes": [ { "category": "description", "text": "In the Linux kernel, the following vulnerability has been resolved:\n\ndpll: fix NULL pointer dereference in dpll_msg_add_pin_ref_sync()\n\nWhen a dpll_pin is shared across multiple dpll_device instances and\nthose devices are being unregistered (e.g. during driver module removal),\na NULL pointer dereference can occur in dpll_msg_add_pin_ref_sync().\n\nThis happens under the following conditions:\n - A pin is registered with two or more dpll devices (dpll_A, dpll_B)\n - The pin has ref_sync pairs with other pins\n - During unregistration of dpll_A's pins, a ref_sync partner pin is\n unregistered first, removing it from dpll_A->pin_refs\n - But since the partner pin is still registered with dpll_B, its\n dpll_refs is not empty, so dpll_pin_ref_sync_pair_del() does NOT\n run and the partner stays in the pin's ref_sync_pins xarray\n - When the pin itself is then unregistered from dpll_A, the delete\n notification calls dpll_msg_add_pin_ref_sync() which finds the\n partner in ref_sync_pins, passes dpll_pin_available() (partner is\n still registered with dpll_B), but dpll_pin_on_dpll_priv(dpll_A,\n partner) returns NULL because partner was already removed from\n dpll_A->pin_refs\n - The NULL priv pointer is passed to the driver's ref_sync_get\n callback, which dereferences it\n\n BUG: kernel NULL pointer dereference, address: 0000000000000034\n Oops: Oops: 0000 [#1] SMP NOPTI\n RIP: 0010:zl3073x_dpll_input_pin_ref_sync_get+0x73/0x80 [zl3073x]\n Call Trace:\n dpll_msg_add_pin_ref_sync+0xb8/0x200\n dpll_cmd_pin_get_one+0x3b6/0x4b0\n dpll_pin_event_send+0x72/0x140\n __dpll_pin_unregister+0x5a/0x2b0\n dpll_pin_unregister+0x49/0x70\n\nFix this by skipping ref_sync pins whose priv pointer cannot be resolved\nfor the current dpll device.", "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-2026-68378" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/4b3e6b9fdaeb40c6a2f7c41db3888b6ee628bdd2", "url": "https://git.kernel.org/stable/c/4b3e6b9fdaeb40c6a2f7c41db3888b6ee628bdd2" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/51c2fcc4cd2e4c52bd1970558f6e5356fdc51154", "url": "https://git.kernel.org/stable/c/51c2fcc4cd2e4c52bd1970558f6e5356fdc51154" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/66fbe0499ef517ab161b96c49886a891851f6481", "url": "https://git.kernel.org/stable/c/66fbe0499ef517ab161b96c49886a891851f6481" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/d2e914a4a0d0f753dbae830264850d044026167c", "url": "https://git.kernel.org/stable/c/d2e914a4a0d0f753dbae830264850d044026167c" } ], "release_date": "2026-08-10T13:20:00Z", "threats": [ { "category": "impact", "details": "Moderate" }, { "category": "impact", "date": "2026-08-22T12:53:57.981442Z", "details": "CVE-2026-68378 is not applicable to debian10els. It concerns a NULL-pointer dereference in the DPLL subsystem's reference-sync netlink handling (dpll_msg_add_pin_ref_sync). The DPLL subsystem, and its reference-sync feature in particular, were added to Linux long after the 4.19 base; debian10els carries no DPLL code at all.", "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" ] } ] } ] }