{ "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-2023-52484-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-2023-52484-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 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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-2023-52484", "cwe": { "id": "CWE-667", "name": "Improper Locking" }, "notes": [ { "category": "description", "text": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/arm-smmu-v3: Fix soft lockup triggered by arm_smmu_mm_invalidate_range\n\nWhen running an SVA case, the following soft lockup is triggered:\n--------------------------------------------------------------------\nwatchdog: BUG: soft lockup - CPU#244 stuck for 26s!\npstate: 83400009 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)\npc : arm_smmu_cmdq_issue_cmdlist+0x178/0xa50\nlr : arm_smmu_cmdq_issue_cmdlist+0x150/0xa50\nsp : ffff8000d83ef290\nx29: ffff8000d83ef290 x28: 000000003b9aca00 x27: 0000000000000000\nx26: ffff8000d83ef3c0 x25: da86c0812194a0e8 x24: 0000000000000000\nx23: 0000000000000040 x22: ffff8000d83ef340 x21: ffff0000c63980c0\nx20: 0000000000000001 x19: ffff0000c6398080 x18: 0000000000000000\nx17: 0000000000000000 x16: 0000000000000000 x15: ffff3000b4a3bbb0\nx14: ffff3000b4a30888 x13: ffff3000b4a3cf60 x12: 0000000000000000\nx11: 0000000000000000 x10: 0000000000000000 x9 : ffffc08120e4d6bc\nx8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000048cfa\nx5 : 0000000000000000 x4 : 0000000000000001 x3 : 000000000000000a\nx2 : 0000000080000000 x1 : 0000000000000000 x0 : 0000000000000001\nCall trace:\n arm_smmu_cmdq_issue_cmdlist+0x178/0xa50\n __arm_smmu_tlb_inv_range+0x118/0x254\n arm_smmu_tlb_inv_range_asid+0x6c/0x130\n arm_smmu_mm_invalidate_range+0xa0/0xa4\n __mmu_notifier_invalidate_range_end+0x88/0x120\n unmap_vmas+0x194/0x1e0\n unmap_region+0xb4/0x144\n do_mas_align_munmap+0x290/0x490\n do_mas_munmap+0xbc/0x124\n __vm_munmap+0xa8/0x19c\n __arm64_sys_munmap+0x28/0x50\n invoke_syscall+0x78/0x11c\n el0_svc_common.constprop.0+0x58/0x1c0\n do_el0_svc+0x34/0x60\n el0_svc+0x2c/0xd4\n el0t_64_sync_handler+0x114/0x140\n el0t_64_sync+0x1a4/0x1a8\n--------------------------------------------------------------------\n\nNote that since 6.6-rc1 the arm_smmu_mm_invalidate_range above is renamed\nto \"arm_smmu_mm_arch_invalidate_secondary_tlbs\", yet the problem remains.\n\nThe commit 06ff87bae8d3 (\"arm64: mm: remove unused functions and variable\nprotoypes\") fixed a similar lockup on the CPU MMU side. Yet, it can occur\nto SMMU too, since arm_smmu_mm_arch_invalidate_secondary_tlbs() is called\ntypically next to MMU tlb flush function, e.g.\n\ttlb_flush_mmu_tlbonly {\n\t\ttlb_flush {\n\t\t\t__flush_tlb_range {\n\t\t\t\t// check MAX_TLBI_OPS\n\t\t\t}\n\t\t}\n\t\tmmu_notifier_arch_invalidate_secondary_tlbs {\n\t\t\tarm_smmu_mm_arch_invalidate_secondary_tlbs {\n\t\t\t\t// does not check MAX_TLBI_OPS\n\t\t\t}\n\t\t}\n\t}\n\nClone a CMDQ_MAX_TLBI_OPS from the MAX_TLBI_OPS in tlbflush.h, since in an\nSVA case SMMU uses the CPU page table, so it makes sense to align with the\ntlbflush code. Then, replace per-page TLBI commands with a single per-asid\nTLBI command, if the request size hits this threshold.", "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-2023-52484" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/3283a1bce9bbc978059f790b84f3c10c32492429", "url": "https://git.kernel.org/stable/c/3283a1bce9bbc978059f790b84f3c10c32492429" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/d5afb4b47e13161b3f33904d45110f9e6463bad6", "url": "https://git.kernel.org/stable/c/d5afb4b47e13161b3f33904d45110f9e6463bad6" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/f5a604757aa8e37ea9c7011dc9da54fa1b30f29b", "url": "https://git.kernel.org/stable/c/f5a604757aa8e37ea9c7011dc9da54fa1b30f29b" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/f90f4c562003ac3d3b135c5a40a5383313f27264", "url": "https://git.kernel.org/stable/c/f90f4c562003ac3d3b135c5a40a5383313f27264" } ], "release_date": "2024-02-29T06:15:00Z", "threats": [ { "category": "impact", "details": "Moderate" }, { "category": "impact", "date": "2026-07-25T04:22:00.924734Z", "details": "The debian10els kernel is not affected by CVE-2023-52484: 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" ] } ] } ] }