{ "document": { "aggregate_severity": { "text": "Medium" }, "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/2023/cve-2023-52516-els_os-debian10els.json" } ], "tracking": { "current_release_date": "2026-08-25T12:55:33Z", "generator": { "date": "2026-08-25T12:55:33Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2023-52516-ELS_OS-DEBIAN10ELS", "initial_release_date": "2023-01-01T00:00:00Z", "revision_history": [ { "date": "2023-01-01T00:00:00Z", "number": "1", "summary": "Initial version" }, { "date": "2026-08-25T12:55:33Z", "number": "2", "summary": "Official Publication" } ], "status": "final", "version": "2" }, "title": "Security update on CVE-2023-52516" }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Debian 10", "product": { "name": "Debian 10", "product_id": "Debian-10", "product_identification_helper": { "cpe": "cpe:2.3:o:debian:debian_linux:10:*:*:*:*:*:*:*" } } } ], "category": "product_family", "name": "Debian" } ], "category": "vendor", "name": "Software in the Public Interest, Inc." }, { "branches": [ { "branches": [ { "category": "product_version", "name": "linux-headers-4.19.0-28-all-amd64-0:4.19.325-1+tuxcare.els1.amd64", "product": { "name": "linux-headers-4.19.0-28-all-amd64-0:4.19.325-1+tuxcare.els1.amd64", "product_id": "linux-headers-4.19.0-28-all-amd64-0:4.19.325-1+tuxcare.els1.amd64", "product_identification_helper": { "purl": "pkg:deb/tuxcare/linux-headers-4.19.0-28-all-amd64@4.19.325-1%2Btuxcare.els1?arch=amd64" } } }, { "category": "product_version", "name": "linux-libc-dev-0:4.19.325-1+tuxcare.els1.amd64", "product": { "name": 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} } } ], "category": "architecture", "name": "all" } ], "category": "vendor", "name": "TuxCare" } ], "relationships": [ { "category": "default_component_of", "full_product_name": { "name": "linux-headers-4.19.0-28-all-amd64-0:4.19.325-1+tuxcare.els1.amd64 as a component of Debian 10", "product_id": "Debian-10:linux-headers-4.19.0-28-all-amd64-0:4.19.325-1+tuxcare.els1.amd64" }, "product_reference": "linux-headers-4.19.0-28-all-amd64-0:4.19.325-1+tuxcare.els1.amd64", "relates_to_product_reference": "Debian-10" }, { "category": "default_component_of", "full_product_name": { "name": "linux-libc-dev-0:4.19.325-1+tuxcare.els1.amd64 as a component of Debian 10", "product_id": "Debian-10:linux-libc-dev-0:4.19.325-1+tuxcare.els1.amd64" }, "product_reference": "linux-libc-dev-0:4.19.325-1+tuxcare.els1.amd64", "relates_to_product_reference": "Debian-10" }, { "category": "default_component_of", "full_product_name": { "name": "libcpupower1-0:4.19.325-1+tuxcare.els1.amd64 as a component of Debian 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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-2023-52516", "cwe": { "id": "CWE-667", "name": "Improper Locking" }, "notes": [ { "category": "description", "text": "In the Linux kernel, the following vulnerability has been resolved:\n\ndma-debug: don't call __dma_entry_alloc_check_leak() under free_entries_lock\n\n__dma_entry_alloc_check_leak() calls into printk -> serial console\noutput (qcom geni) and grabs port->lock under free_entries_lock\nspin lock, which is a reverse locking dependency chain as qcom_geni\nIRQ handler can call into dma-debug code and grab free_entries_lock\nunder port->lock.\n\nMove __dma_entry_alloc_check_leak() call out of free_entries_lock\nscope so that we don't acquire serial console's port->lock under it.\n\nTrimmed-down lockdep splat:\n\n The existing dependency chain (in reverse order) is:\n\n -> #2 (free_entries_lock){-.-.}-{2:2}:\n _raw_spin_lock_irqsave+0x60/0x80\n dma_entry_alloc+0x38/0x110\n debug_dma_map_page+0x60/0xf8\n dma_map_page_attrs+0x1e0/0x230\n dma_map_single_attrs.constprop.0+0x6c/0xc8\n geni_se_rx_dma_prep+0x40/0xcc\n qcom_geni_serial_isr+0x310/0x510\n __handle_irq_event_percpu+0x110/0x244\n handle_irq_event_percpu+0x20/0x54\n handle_irq_event+0x50/0x88\n handle_fasteoi_irq+0xa4/0xcc\n handle_irq_desc+0x28/0x40\n generic_handle_domain_irq+0x24/0x30\n gic_handle_irq+0xc4/0x148\n do_interrupt_handler+0xa4/0xb0\n el1_interrupt+0x34/0x64\n el1h_64_irq_handler+0x18/0x24\n el1h_64_irq+0x64/0x68\n arch_local_irq_enable+0x4/0x8\n ____do_softirq+0x18/0x24\n ...\n\n -> #1 (&port_lock_key){-.-.}-{2:2}:\n _raw_spin_lock_irqsave+0x60/0x80\n qcom_geni_serial_console_write+0x184/0x1dc\n console_flush_all+0x344/0x454\n console_unlock+0x94/0xf0\n vprintk_emit+0x238/0x24c\n vprintk_default+0x3c/0x48\n vprintk+0xb4/0xbc\n _printk+0x68/0x90\n register_console+0x230/0x38c\n uart_add_one_port+0x338/0x494\n qcom_geni_serial_probe+0x390/0x424\n platform_probe+0x70/0xc0\n really_probe+0x148/0x280\n __driver_probe_device+0xfc/0x114\n driver_probe_device+0x44/0x100\n __device_attach_driver+0x64/0xdc\n bus_for_each_drv+0xb0/0xd8\n __device_attach+0xe4/0x140\n device_initial_probe+0x1c/0x28\n bus_probe_device+0x44/0xb0\n device_add+0x538/0x668\n of_device_add+0x44/0x50\n of_platform_device_create_pdata+0x94/0xc8\n of_platform_bus_create+0x270/0x304\n of_platform_populate+0xac/0xc4\n devm_of_platform_populate+0x60/0xac\n geni_se_probe+0x154/0x160\n platform_probe+0x70/0xc0\n ...\n\n -> #0 (console_owner){-...}-{0:0}:\n __lock_acquire+0xdf8/0x109c\n lock_acquire+0x234/0x284\n console_flush_all+0x330/0x454\n console_unlock+0x94/0xf0\n vprintk_emit+0x238/0x24c\n vprintk_default+0x3c/0x48\n vprintk+0xb4/0xbc\n _printk+0x68/0x90\n dma_entry_alloc+0xb4/0x110\n debug_dma_map_sg+0xdc/0x2f8\n __dma_map_sg_attrs+0xac/0xe4\n dma_map_sgtable+0x30/0x4c\n get_pages+0x1d4/0x1e4 [msm]\n msm_gem_pin_pages_locked+0x38/0xac [msm]\n msm_gem_pin_vma_locked+0x58/0x88 [msm]\n msm_ioctl_gem_submit+0xde4/0x13ac [msm]\n drm_ioctl_kernel+0xe0/0x15c\n drm_ioctl+0x2e8/0x3f4\n vfs_ioctl+0x30/0x50\n ...\n\n Chain exists of:\n console_owner --> &port_lock_key --> free_entries_lock\n\n Possible unsafe locking scenario:\n\n CPU0 CPU1\n ---- ----\n lock(free_entries_lock);\n lock(&port_lock_key);\n lock(free_entries_lock);\n lock(console_owner);\n\n *** DEADLOCK ***\n\n Call trace:\n dump_backtrace+0xb4/0xf0\n show_stack+0x20/0x30\n dump_stack_lvl+0x60/0x84\n dump_stack+0x18/0x24\n print_circular_bug+0x1cc/0x234\n check_noncircular+0x78/0xac\n __lock_acquire+0xdf8/0x109c\n lock_acquire+0x234/0x284\n console_flush_all+0x330/0x454\n consol\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-2023-52516" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/ac0d068099349cbca3d93f2e3b15bb329364b08c", "url": "https://git.kernel.org/stable/c/ac0d068099349cbca3d93f2e3b15bb329364b08c" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/be8f49029eca3efbad0d74dbff3cb9129994ffab", "url": "https://git.kernel.org/stable/c/be8f49029eca3efbad0d74dbff3cb9129994ffab" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/c79300599923daaa30f417c75555d5566b3d31ae", "url": "https://git.kernel.org/stable/c/c79300599923daaa30f417c75555d5566b3d31ae" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/fb5a4315591dae307a65fc246ca80b5159d296e1", "url": "https://git.kernel.org/stable/c/fb5a4315591dae307a65fc246ca80b5159d296e1" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/fe2b811a02c3244ebf6059039e4a9e715e26a9e3", "url": "https://git.kernel.org/stable/c/fe2b811a02c3244ebf6059039e4a9e715e26a9e3" } ], "release_date": "2024-03-02T22:15:00Z", "threats": [ { "category": "impact", "details": "Moderate" }, { "category": "impact", "date": "2026-07-25T04:22:01.271929Z", "details": "The debian10els kernel is not affected by CVE-2023-52516: the vulnerable code was never introduced into this branch.", "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" ] } ] } ] }