{ "document":{ "aggregate_severity":{ "namespace":"https://nvd.nist.gov/vuln-metrics/cvss", "text":"HIGH" }, "category":"csaf_vex", "csaf_version":"2.0", "distribution":{ "tlp":{ "label":"WHITE", "url":"https:/www.first.org/tlp/" } }, "lang":"en", "notes":[ { "text":"In the Linux kernel, the following vulnerability has been resolved:\n\nNFSD: Defer sub-object cleanup in export put callbacks\n\nsvc_export_put() calls path_put() and auth_domain_put() immediately\nwhen the last reference drops, before the RCU grace period. RCU\nreaders in e_show() and c_show() access both ex_path (via\nseq_path/d_path) and ex_client->name (via seq_escape) without\nholding a reference. If cache_clean removes the entry and drops the\nlast reference concurrently, the sub-objects are freed while still\nin use, producing a NULL pointer dereference in d_path.\n\nCommit 2530766492ec (\"nfsd: fix UAF when access ex_uuid or\nex_stats\") moved kfree of ex_uuid and ex_stats into the\ncall_rcu callback, but left path_put() and auth_domain_put() running\nbefore the grace period because both may sleep and call_rcu\ncallbacks execute in softirq context.\n\nReplace call_rcu/kfree_rcu with queue_rcu_work(), which defers the\ncallback until after the RCU grace period and executes it in process\ncontext where sleeping is permitted. This allows path_put() and\nauth_domain_put() to be moved into the deferred callback alongside\nthe other resource releases. Apply the same fix to expkey_put(),\nwhich has the identical pattern with ek_path and ek_client.\n\nA dedicated workqueue scopes the shutdown drain to only NFSD\nexport release work items; flushing the shared\nsystem_unbound_wq would stall on unrelated work from other\nsubsystems. nfsd_export_shutdown() uses rcu_barrier() followed\nby flush_workqueue() to ensure all deferred release callbacks\ncomplete before the export caches are destroyed.\n\nReviwed-by: Jeff Layton <", "category":"general", "title":"Synopsis" } ], "publisher":null, "references":[ { "summary":"nvd cve", "category":"external", "url":"https://nvd.nist.gov/vuln/detail/CVE-2026-31404" }, { "summary":"CVE-2026-31404 vex file", "category":"self", "url":"https://repo.openeuler.org/security/data/csaf/cve/2026/csaf-openeuler-cve-2026-31404.json" }, { "summary":"openEuler-SA-2026-2311", "category":"self", "url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-2311" }, { "summary":"CVE-2026-31404", "category":"self", "url":"https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-31404&packageName=kernel" } ], "title":"openEuler cve CVE-2026-31404", "tracking":{ "initial_release_date":"2026-05-18T10:35:19+08:00", "revision_history":[ { "date":"2026-05-18T10:35:19+08:00", "summary":"Initial", "number":"1.0.0" } ], "generator":{ "date":"2026-05-18T10:35:19+08:00", "engine":{ "name":"openEuler CSAF Tool V1.0" } }, "current_release_date":"2026-05-18T10:35:19+08:00", "id":"CVE-2026-31404", "version":"1.0.0", "status":"interim" } }, "product_tree":{ "branches":[ { "name":"openEuler", "category":"vendor", "branches":[ { "name":"openEuler", "branches":[ { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:22.03-LTS-SP4" }, "product_id":"openEuler-22.03-LTS-SP4", "name":"openEuler-22.03-LTS-SP4" }, "name":"openEuler-22.03-LTS-SP4", "category":"product_version" } ], "category":"product_name" }, { "name":"x86_64", "branches":[ { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:22.03-LTS-SP4" }, "product_id":"bpftool-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "name":"bpftool-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm" }, "name":"bpftool-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "category":"product_version" }, { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:22.03-LTS-SP4" }, "product_id":"bpftool-debuginfo-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "name":"bpftool-debuginfo-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm" }, "name":"bpftool-debuginfo-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "category":"product_version" }, { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:22.03-LTS-SP4" }, "product_id":"kernel-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "name":"kernel-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm" }, "name":"kernel-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "category":"product_version" }, { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:22.03-LTS-SP4" }, "product_id":"kernel-debuginfo-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "name":"kernel-debuginfo-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm" }, "name":"kernel-debuginfo-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "category":"product_version" }, { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:22.03-LTS-SP4" }, "product_id":"kernel-debugsource-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "name":"kernel-debugsource-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm" }, "name":"kernel-debugsource-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "category":"product_version" }, { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:22.03-LTS-SP4" }, "product_id":"kernel-devel-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "name":"kernel-devel-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm" }, "name":"kernel-devel-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "category":"product_version" }, { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:22.03-LTS-SP4" }, "product_id":"kernel-headers-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "name":"kernel-headers-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm" }, "name":"kernel-headers-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "category":"product_version" }, { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:22.03-LTS-SP4" }, "product_id":"kernel-source-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "name":"kernel-source-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm" }, "name":"kernel-source-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "category":"product_version" }, { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:22.03-LTS-SP4" }, "product_id":"kernel-tools-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "name":"kernel-tools-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm" }, "name":"kernel-tools-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "category":"product_version" }, { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:22.03-LTS-SP4" }, "product_id":"kernel-tools-debuginfo-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "name":"kernel-tools-debuginfo-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm" }, "name":"kernel-tools-debuginfo-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "category":"product_version" }, { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:22.03-LTS-SP4" }, "product_id":"kernel-tools-devel-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "name":"kernel-tools-devel-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm" }, "name":"kernel-tools-devel-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "category":"product_version" }, { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:22.03-LTS-SP4" }, "product_id":"perf-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "name":"perf-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm" }, "name":"perf-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "category":"product_version" }, { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:22.03-LTS-SP4" }, "product_id":"perf-debuginfo-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "name":"perf-debuginfo-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm" }, "name":"perf-debuginfo-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "category":"product_version" }, { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:22.03-LTS-SP4" }, "product_id":"python3-perf-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "name":"python3-perf-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm" }, "name":"python3-perf-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "category":"product_version" }, { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:22.03-LTS-SP4" }, "product_id":"python3-perf-debuginfo-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "name":"python3-perf-debuginfo-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm" }, "name":"python3-perf-debuginfo-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "category":"product_version" } ], "category":"architecture" }, { "name":"src", "branches":[ { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:22.03-LTS-SP4" }, "product_id":"kernel-5.10.0-314.0.0.217.oe2203sp4.src.rpm", "name":"kernel-5.10.0-314.0.0.217.oe2203sp4.src.rpm" }, "name":"kernel-5.10.0-314.0.0.217.oe2203sp4.src.rpm", "category":"product_version" } ], "category":"architecture" }, { "name":"aarch64", "branches":[ { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:22.03-LTS-SP4" }, "product_id":"bpftool-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "name":"bpftool-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm" }, "name":"bpftool-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "category":"product_version" }, { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:22.03-LTS-SP4" }, "product_id":"bpftool-debuginfo-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "name":"bpftool-debuginfo-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm" }, "name":"bpftool-debuginfo-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "category":"product_version" }, { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:22.03-LTS-SP4" }, "product_id":"kernel-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "name":"kernel-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm" }, "name":"kernel-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "category":"product_version" }, { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:22.03-LTS-SP4" }, "product_id":"kernel-debuginfo-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "name":"kernel-debuginfo-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm" }, "name":"kernel-debuginfo-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "category":"product_version" }, { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:22.03-LTS-SP4" }, "product_id":"kernel-debugsource-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "name":"kernel-debugsource-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm" }, "name":"kernel-debugsource-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "category":"product_version" }, { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:22.03-LTS-SP4" }, "product_id":"kernel-devel-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "name":"kernel-devel-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm" }, "name":"kernel-devel-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "category":"product_version" }, { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:22.03-LTS-SP4" }, "product_id":"kernel-headers-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "name":"kernel-headers-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm" }, "name":"kernel-headers-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "category":"product_version" }, { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:22.03-LTS-SP4" }, "product_id":"kernel-source-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "name":"kernel-source-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm" }, "name":"kernel-source-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "category":"product_version" }, { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:22.03-LTS-SP4" }, "product_id":"kernel-tools-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "name":"kernel-tools-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm" }, "name":"kernel-tools-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "category":"product_version" }, { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:22.03-LTS-SP4" }, "product_id":"kernel-tools-debuginfo-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "name":"kernel-tools-debuginfo-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm" }, "name":"kernel-tools-debuginfo-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "category":"product_version" }, { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:22.03-LTS-SP4" }, "product_id":"kernel-tools-devel-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "name":"kernel-tools-devel-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm" }, "name":"kernel-tools-devel-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "category":"product_version" }, { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:22.03-LTS-SP4" }, "product_id":"perf-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "name":"perf-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm" }, "name":"perf-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "category":"product_version" }, { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:22.03-LTS-SP4" }, "product_id":"perf-debuginfo-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "name":"perf-debuginfo-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm" }, "name":"perf-debuginfo-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "category":"product_version" }, { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:22.03-LTS-SP4" }, "product_id":"python3-perf-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "name":"python3-perf-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm" }, "name":"python3-perf-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "category":"product_version" }, { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:22.03-LTS-SP4" }, "product_id":"python3-perf-debuginfo-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "name":"python3-perf-debuginfo-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm" }, "name":"python3-perf-debuginfo-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "category":"product_version" } ], "category":"architecture" } ] } ], "relationships":[ { "relates_to_product_reference":"openEuler-22.03-LTS-SP4", "product_reference":"bpftool-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "full_product_name":{ "product_id":"openEuler-22.03-LTS-SP4:bpftool-5.10.0-314.0.0.217.oe2203sp4.x86_64", "name":"bpftool-5.10.0-314.0.0.217.oe2203sp4.x86_64 as a component of openEuler-22.03-LTS-SP4" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-22.03-LTS-SP4", "product_reference":"bpftool-debuginfo-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "full_product_name":{ "product_id":"openEuler-22.03-LTS-SP4:bpftool-debuginfo-5.10.0-314.0.0.217.oe2203sp4.x86_64", "name":"bpftool-debuginfo-5.10.0-314.0.0.217.oe2203sp4.x86_64 as a component of openEuler-22.03-LTS-SP4" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-22.03-LTS-SP4", "product_reference":"kernel-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "full_product_name":{ "product_id":"openEuler-22.03-LTS-SP4:kernel-5.10.0-314.0.0.217.oe2203sp4.x86_64", "name":"kernel-5.10.0-314.0.0.217.oe2203sp4.x86_64 as a component of openEuler-22.03-LTS-SP4" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-22.03-LTS-SP4", "product_reference":"kernel-debuginfo-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "full_product_name":{ "product_id":"openEuler-22.03-LTS-SP4:kernel-debuginfo-5.10.0-314.0.0.217.oe2203sp4.x86_64", "name":"kernel-debuginfo-5.10.0-314.0.0.217.oe2203sp4.x86_64 as a component of openEuler-22.03-LTS-SP4" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-22.03-LTS-SP4", "product_reference":"kernel-debugsource-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "full_product_name":{ "product_id":"openEuler-22.03-LTS-SP4:kernel-debugsource-5.10.0-314.0.0.217.oe2203sp4.x86_64", "name":"kernel-debugsource-5.10.0-314.0.0.217.oe2203sp4.x86_64 as a component of openEuler-22.03-LTS-SP4" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-22.03-LTS-SP4", "product_reference":"kernel-devel-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "full_product_name":{ "product_id":"openEuler-22.03-LTS-SP4:kernel-devel-5.10.0-314.0.0.217.oe2203sp4.x86_64", "name":"kernel-devel-5.10.0-314.0.0.217.oe2203sp4.x86_64 as a component of openEuler-22.03-LTS-SP4" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-22.03-LTS-SP4", "product_reference":"kernel-headers-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "full_product_name":{ "product_id":"openEuler-22.03-LTS-SP4:kernel-headers-5.10.0-314.0.0.217.oe2203sp4.x86_64", "name":"kernel-headers-5.10.0-314.0.0.217.oe2203sp4.x86_64 as a component of openEuler-22.03-LTS-SP4" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-22.03-LTS-SP4", "product_reference":"kernel-source-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "full_product_name":{ "product_id":"openEuler-22.03-LTS-SP4:kernel-source-5.10.0-314.0.0.217.oe2203sp4.x86_64", "name":"kernel-source-5.10.0-314.0.0.217.oe2203sp4.x86_64 as a component of openEuler-22.03-LTS-SP4" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-22.03-LTS-SP4", "product_reference":"kernel-tools-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "full_product_name":{ "product_id":"openEuler-22.03-LTS-SP4:kernel-tools-5.10.0-314.0.0.217.oe2203sp4.x86_64", "name":"kernel-tools-5.10.0-314.0.0.217.oe2203sp4.x86_64 as a component of openEuler-22.03-LTS-SP4" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-22.03-LTS-SP4", "product_reference":"kernel-tools-debuginfo-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "full_product_name":{ "product_id":"openEuler-22.03-LTS-SP4:kernel-tools-debuginfo-5.10.0-314.0.0.217.oe2203sp4.x86_64", "name":"kernel-tools-debuginfo-5.10.0-314.0.0.217.oe2203sp4.x86_64 as a component of openEuler-22.03-LTS-SP4" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-22.03-LTS-SP4", "product_reference":"kernel-tools-devel-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "full_product_name":{ "product_id":"openEuler-22.03-LTS-SP4:kernel-tools-devel-5.10.0-314.0.0.217.oe2203sp4.x86_64", "name":"kernel-tools-devel-5.10.0-314.0.0.217.oe2203sp4.x86_64 as a component of openEuler-22.03-LTS-SP4" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-22.03-LTS-SP4", "product_reference":"perf-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "full_product_name":{ "product_id":"openEuler-22.03-LTS-SP4:perf-5.10.0-314.0.0.217.oe2203sp4.x86_64", "name":"perf-5.10.0-314.0.0.217.oe2203sp4.x86_64 as a component of openEuler-22.03-LTS-SP4" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-22.03-LTS-SP4", "product_reference":"perf-debuginfo-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "full_product_name":{ "product_id":"openEuler-22.03-LTS-SP4:perf-debuginfo-5.10.0-314.0.0.217.oe2203sp4.x86_64", "name":"perf-debuginfo-5.10.0-314.0.0.217.oe2203sp4.x86_64 as a component of openEuler-22.03-LTS-SP4" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-22.03-LTS-SP4", "product_reference":"python3-perf-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "full_product_name":{ "product_id":"openEuler-22.03-LTS-SP4:python3-perf-5.10.0-314.0.0.217.oe2203sp4.x86_64", "name":"python3-perf-5.10.0-314.0.0.217.oe2203sp4.x86_64 as a component of openEuler-22.03-LTS-SP4" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-22.03-LTS-SP4", "product_reference":"python3-perf-debuginfo-5.10.0-314.0.0.217.oe2203sp4.x86_64.rpm", "full_product_name":{ "product_id":"openEuler-22.03-LTS-SP4:python3-perf-debuginfo-5.10.0-314.0.0.217.oe2203sp4.x86_64", "name":"python3-perf-debuginfo-5.10.0-314.0.0.217.oe2203sp4.x86_64 as a component of openEuler-22.03-LTS-SP4" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-22.03-LTS-SP4", "product_reference":"kernel-5.10.0-314.0.0.217.oe2203sp4.src.rpm", "full_product_name":{ "product_id":"openEuler-22.03-LTS-SP4:kernel-5.10.0-314.0.0.217.oe2203sp4.src", "name":"kernel-5.10.0-314.0.0.217.oe2203sp4.src as a component of openEuler-22.03-LTS-SP4" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-22.03-LTS-SP4", "product_reference":"bpftool-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "full_product_name":{ "product_id":"openEuler-22.03-LTS-SP4:bpftool-5.10.0-314.0.0.217.oe2203sp4.aarch64", "name":"bpftool-5.10.0-314.0.0.217.oe2203sp4.aarch64 as a component of openEuler-22.03-LTS-SP4" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-22.03-LTS-SP4", "product_reference":"bpftool-debuginfo-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "full_product_name":{ "product_id":"openEuler-22.03-LTS-SP4:bpftool-debuginfo-5.10.0-314.0.0.217.oe2203sp4.aarch64", "name":"bpftool-debuginfo-5.10.0-314.0.0.217.oe2203sp4.aarch64 as a component of openEuler-22.03-LTS-SP4" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-22.03-LTS-SP4", "product_reference":"kernel-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "full_product_name":{ "product_id":"openEuler-22.03-LTS-SP4:kernel-5.10.0-314.0.0.217.oe2203sp4.aarch64", "name":"kernel-5.10.0-314.0.0.217.oe2203sp4.aarch64 as a component of openEuler-22.03-LTS-SP4" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-22.03-LTS-SP4", "product_reference":"kernel-debuginfo-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "full_product_name":{ "product_id":"openEuler-22.03-LTS-SP4:kernel-debuginfo-5.10.0-314.0.0.217.oe2203sp4.aarch64", "name":"kernel-debuginfo-5.10.0-314.0.0.217.oe2203sp4.aarch64 as a component of openEuler-22.03-LTS-SP4" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-22.03-LTS-SP4", "product_reference":"kernel-debugsource-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "full_product_name":{ "product_id":"openEuler-22.03-LTS-SP4:kernel-debugsource-5.10.0-314.0.0.217.oe2203sp4.aarch64", "name":"kernel-debugsource-5.10.0-314.0.0.217.oe2203sp4.aarch64 as a component of openEuler-22.03-LTS-SP4" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-22.03-LTS-SP4", "product_reference":"kernel-devel-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "full_product_name":{ "product_id":"openEuler-22.03-LTS-SP4:kernel-devel-5.10.0-314.0.0.217.oe2203sp4.aarch64", "name":"kernel-devel-5.10.0-314.0.0.217.oe2203sp4.aarch64 as a component of openEuler-22.03-LTS-SP4" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-22.03-LTS-SP4", "product_reference":"kernel-headers-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "full_product_name":{ "product_id":"openEuler-22.03-LTS-SP4:kernel-headers-5.10.0-314.0.0.217.oe2203sp4.aarch64", "name":"kernel-headers-5.10.0-314.0.0.217.oe2203sp4.aarch64 as a component of openEuler-22.03-LTS-SP4" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-22.03-LTS-SP4", "product_reference":"kernel-source-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "full_product_name":{ "product_id":"openEuler-22.03-LTS-SP4:kernel-source-5.10.0-314.0.0.217.oe2203sp4.aarch64", "name":"kernel-source-5.10.0-314.0.0.217.oe2203sp4.aarch64 as a component of openEuler-22.03-LTS-SP4" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-22.03-LTS-SP4", "product_reference":"kernel-tools-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "full_product_name":{ "product_id":"openEuler-22.03-LTS-SP4:kernel-tools-5.10.0-314.0.0.217.oe2203sp4.aarch64", "name":"kernel-tools-5.10.0-314.0.0.217.oe2203sp4.aarch64 as a component of openEuler-22.03-LTS-SP4" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-22.03-LTS-SP4", "product_reference":"kernel-tools-debuginfo-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "full_product_name":{ "product_id":"openEuler-22.03-LTS-SP4:kernel-tools-debuginfo-5.10.0-314.0.0.217.oe2203sp4.aarch64", "name":"kernel-tools-debuginfo-5.10.0-314.0.0.217.oe2203sp4.aarch64 as a component of openEuler-22.03-LTS-SP4" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-22.03-LTS-SP4", "product_reference":"kernel-tools-devel-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "full_product_name":{ "product_id":"openEuler-22.03-LTS-SP4:kernel-tools-devel-5.10.0-314.0.0.217.oe2203sp4.aarch64", "name":"kernel-tools-devel-5.10.0-314.0.0.217.oe2203sp4.aarch64 as a component of openEuler-22.03-LTS-SP4" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-22.03-LTS-SP4", "product_reference":"perf-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "full_product_name":{ "product_id":"openEuler-22.03-LTS-SP4:perf-5.10.0-314.0.0.217.oe2203sp4.aarch64", "name":"perf-5.10.0-314.0.0.217.oe2203sp4.aarch64 as a component of openEuler-22.03-LTS-SP4" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-22.03-LTS-SP4", "product_reference":"perf-debuginfo-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "full_product_name":{ "product_id":"openEuler-22.03-LTS-SP4:perf-debuginfo-5.10.0-314.0.0.217.oe2203sp4.aarch64", "name":"perf-debuginfo-5.10.0-314.0.0.217.oe2203sp4.aarch64 as a component of openEuler-22.03-LTS-SP4" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-22.03-LTS-SP4", "product_reference":"python3-perf-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "full_product_name":{ "product_id":"openEuler-22.03-LTS-SP4:python3-perf-5.10.0-314.0.0.217.oe2203sp4.aarch64", "name":"python3-perf-5.10.0-314.0.0.217.oe2203sp4.aarch64 as a component of openEuler-22.03-LTS-SP4" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-22.03-LTS-SP4", "product_reference":"python3-perf-debuginfo-5.10.0-314.0.0.217.oe2203sp4.aarch64.rpm", "full_product_name":{ "product_id":"openEuler-22.03-LTS-SP4:python3-perf-debuginfo-5.10.0-314.0.0.217.oe2203sp4.aarch64", "name":"python3-perf-debuginfo-5.10.0-314.0.0.217.oe2203sp4.aarch64 as a component of openEuler-22.03-LTS-SP4" }, "category":"default_component_of" } ] }, "vulnerabilities":[ { "cve":"CVE-2026-31404", "notes":[ { "text":"In the Linux kernel, the following vulnerability has been resolved:\n\nNFSD: Defer sub-object cleanup in export put callbacks\n\nsvc_export_put() calls path_put() and auth_domain_put() immediately\nwhen the last reference drops, before the RCU grace period. RCU\nreaders in e_show() and c_show() access both ex_path (via\nseq_path/d_path) and ex_client->name (via seq_escape) without\nholding a reference. If cache_clean removes the entry and drops the\nlast reference concurrently, the sub-objects are freed while still\nin use, producing a NULL pointer dereference in d_path.\n\nCommit 2530766492ec (\"nfsd: fix UAF when access ex_uuid or\nex_stats\") moved kfree of ex_uuid and ex_stats into the\ncall_rcu callback, but left path_put() and auth_domain_put() running\nbefore the grace period because both may sleep and call_rcu\ncallbacks execute in softirq context.\n\nReplace call_rcu/kfree_rcu with queue_rcu_work(), which defers the\ncallback until after the RCU grace period and executes it in process\ncontext where sleeping is permitted. This allows path_put() and\nauth_domain_put() to be moved into the deferred callback alongside\nthe other resource releases. Apply the same fix to expkey_put(),\nwhich has the identical pattern with ek_path and ek_client.\n\nA dedicated workqueue scopes the shutdown drain to only NFSD\nexport release work items; flushing the shared\nsystem_unbound_wq would stall on unrelated work from other\nsubsystems. nfsd_export_shutdown() uses rcu_barrier() followed\nby flush_workqueue() to ensure all deferred release callbacks\ncomplete before the export caches are destroyed.\n\nReviwed-by: Jeff Layton <", "category":"description", "title":"Vulnerability Description" } ], "product_status":{ "fixed":{ "$ref":"$.vulnerabilities[0].product_status.fixed" } }, "remediations":[ { "product_ids":{ "$ref":"$.vulnerabilities[0].product_status.fixed" }, "details":"kernel security update", "category":"vendor_fix", "url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-2311" } ], "scores":[ { "cvss_v3":{ "baseSeverity":"MEDIUM", "baseScore":5.5, "vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version":"3.1" }, "products":{ "$ref":"$.vulnerabilities[0].product_status.fixed" } } ], "threats":[ { "details":"Medium", "category":"impact" } ], "title":"CVE-2026-31404" } ] }