https:\/\/access.redhat.com\/security\/cve\/cve-2022-0847<\/a><\/p>\n\n\n\nStatement<\/h2>\n\n\n\n
This advisory is only used to describe a potential risk. NSFOCUS does not provide any commitment or promise on this advisory. NSFOCUS and the author will not bear any liability for any direct and\/or indirect consequences and losses caused by transmitting and\/or using this advisory. NSFOCUS reserves all the rights to modify and interpret this advisory. Please include this statement paragraph when reproducing or transferring this advisory. Do not modify this advisory, add\/delete any information to\/from it, or use this advisory for commercial purposes without permission from NSFOCUS.<\/p>\n\n\n\n
About NSFOCUS<\/h2>\n\n\n\n
NSFOCUS, Inc., a global network and cyber security leader, protects enterprises and carriers from advanced cyber attacks. The company’s Intelligent Hybrid Security strategy utilizes both cloud and on-premises security platforms, built on a foundation of real-time global threat intelligence, to provide multi-layered, unified and dynamic protection against advanced cyber attacks.<\/p>\n\n\n\n
NSFOCUS works with Fortune Global 500 companies, including four of the world’s five largest financial institutions, organizations in insurance, retail, healthcare, critical infrastructure industries as well as government agencies. NSFOCUS has technology and channel partners in more than 60 countries, is a member of both the Microsoft Active Protections Program (MAPP), and the Cloud Security Alliance (CSA).<\/p>\n\n\n\n
A wholly owned subsidiary of NSFOCUS Technologies Group Co., Ltd., the company has operations in the Americas, Europe, the Middle East and Asia Pacific.<\/p>\n<\/body><\/html>\n","protected":false},"excerpt":{"rendered":"
Overview Recently, NSFOCUS CERT detected that a security researcher disclosed a local privilege escalation vulnerability (CVE-2022-0847) in the Linux kernel. Due to a flaw in the correct initialization of the copy_page_to_iter_pipe and push_pipe functions in the Linux kernel, an attacker can overwrite the data in any readable file by exploiting this vulnerability, thereby escalating ordinary […]<\/p>\n","protected":false},"author":6,"featured_media":8904,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","footnotes":""},"categories":[3,6],"tags":[210,492,493],"class_list":["post-19319","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-emergency-response","tag-cve-2022-0847","tag-linux-kernel","tag-linux-vulnerability"],"acf":[],"yoast_head":"\n
Linux Kernel Privilege Escalation Vulnerability (CVE-2022-0847) Alert - NSFOCUS<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/nsfocusglobal.com\/linux-kernel-privilege-escalation-vulnerability-cve-2022-0847-alert\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Linux Kernel Privilege Escalation Vulnerability (CVE-2022-0847) Alert - NSFOCUS\" \/>\n<meta property=\"og:description\" content=\"Overview Recently, NSFOCUS CERT detected that a security researcher disclosed a local privilege escalation vulnerability (CVE-2022-0847) in the Linux\" \/>\n<meta property=\"og:url\" content=\"https:\/\/nsfocusglobal.com\/linux-kernel-privilege-escalation-vulnerability-cve-2022-0847-alert\/\" \/>\n<meta property=\"og:site_name\" content=\"NSFOCUS\" \/>\n<meta property=\"article:published_time\" content=\"2022-03-10T08:06:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-04-17T18:07:44+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/nsfocusglobal.com\/wp-content\/uploads\/2019\/06\/linux.jpg\" \/>\n<meta name=\"author\" content=\"Jie Ji\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"Linux Kernel Privilege Escalation Vulnerability (CVE-2022-0847) Alert - NSFOCUS\" \/>\n<meta name=\"twitter:description\" content=\"Overview Recently, NSFOCUS CERT detected that a security researcher disclosed a local privilege escalation vulnerability (CVE-2022-0847) in the Linux\" \/>\n<meta name=\"twitter:image\" content=\"https:\/\/nsfocusglobal.com\/wp-content\/uploads\/2019\/06\/linux.jpg\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"Jie Ji\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. tempo de leitura\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/nsfocusglobal.com\\\/linux-kernel-privilege-escalation-vulnerability-cve-2022-0847-alert\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/nsfocusglobal.com\\\/linux-kernel-privilege-escalation-vulnerability-cve-2022-0847-alert\\\/\"},\"author\":{\"name\":\"Jie Ji\",\"@id\":\"https:\\\/\\\/nsfocusglobal.com\\\/#\\\/schema\\\/person\\\/1077d8fcd7e52c96f17a33b63a0d157b\"},\"headline\":\"Linux Kernel Privilege Escalation Vulnerability (CVE-2022-0847) Alert\",\"datePublished\":\"2022-03-10T08:06:00+00:00\",\"dateModified\":\"2026-04-17T18:07:44+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/nsfocusglobal.com\\\/linux-kernel-privilege-escalation-vulnerability-cve-2022-0847-alert\\\/\"},\"wordCount\":474,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/nsfocusglobal.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/nsfocusglobal.com\\\/linux-kernel-privilege-escalation-vulnerability-cve-2022-0847-alert\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/nsfocusglobal.com\\\/wp-content\\\/uploads\\\/2019\\\/06\\\/linux.jpg\",\"keywords\":[\"CVE-2022-0847\",\"Linux kernel\",\"Linux Vulnerability\"],\"articleSection\":[\"Blog\",\"Emergency Response\"],\"inLanguage\":\"pt-BR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/nsfocusglobal.com\\\/linux-kernel-privilege-escalation-vulnerability-cve-2022-0847-alert\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/nsfocusglobal.com\\\/linux-kernel-privilege-escalation-vulnerability-cve-2022-0847-alert\\\/\",\"url\":\"https:\\\/\\\/nsfocusglobal.com\\\/linux-kernel-privilege-escalation-vulnerability-cve-2022-0847-alert\\\/\",\"name\":\"Linux Kernel Privilege Escalation Vulnerability (CVE-2022-0847) Alert - NSFOCUS\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/nsfocusglobal.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/nsfocusglobal.com\\\/linux-kernel-privilege-escalation-vulnerability-cve-2022-0847-alert\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/nsfocusglobal.com\\\/linux-kernel-privilege-escalation-vulnerability-cve-2022-0847-alert\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/nsfocusglobal.com\\\/wp-content\\\/uploads\\\/2019\\\/06\\\/linux.jpg\",\"datePublished\":\"2022-03-10T08:06:00+00:00\",\"dateModified\":\"2026-04-17T18:07:44+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/nsfocusglobal.com\\\/linux-kernel-privilege-escalation-vulnerability-cve-2022-0847-alert\\\/#breadcrumb\"},\"inLanguage\":\"pt-BR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/nsfocusglobal.com\\\/linux-kernel-privilege-escalation-vulnerability-cve-2022-0847-alert\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"pt-BR\",\"@id\":\"https:\\\/\\\/nsfocusglobal.com\\\/linux-kernel-privilege-escalation-vulnerability-cve-2022-0847-alert\\\/#primaryimage\",\"url\":\"https:\\\/\\\/nsfocusglobal.com\\\/wp-content\\\/uploads\\\/2019\\\/06\\\/linux.jpg\",\"contentUrl\":\"https:\\\/\\\/nsfocusglobal.com\\\/wp-content\\\/uploads\\\/2019\\\/06\\\/linux.jpg\",\"width\":430,\"height\":222,\"caption\":\"Linux logo with Tux the penguin.\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/nsfocusglobal.com\\\/linux-kernel-privilege-escalation-vulnerability-cve-2022-0847-alert\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/nsfocusglobal.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Linux Kernel Privilege Escalation Vulnerability (CVE-2022-0847) Alert\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/nsfocusglobal.com\\\/#website\",\"url\":\"https:\\\/\\\/nsfocusglobal.com\\\/\",\"name\":\"NSFOCUS\",\"description\":\"Security Made Smart and Simple\",\"publisher\":{\"@id\":\"https:\\\/\\\/nsfocusglobal.com\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/nsfocusglobal.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"pt-BR\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/nsfocusglobal.com\\\/#organization\",\"name\":\"NSFOCUS\",\"url\":\"https:\\\/\\\/nsfocusglobal.com\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"pt-BR\",\"@id\":\"https:\\\/\\\/nsfocusglobal.com\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/nsfocusglobal.com\\\/wp-content\\\/uploads\\\/2024\\\/08\\\/logo-ns.png\",\"contentUrl\":\"https:\\\/\\\/nsfocusglobal.com\\\/wp-content\\\/uploads\\\/2024\\\/08\\\/logo-ns.png\",\"width\":248,\"height\":36,\"caption\":\"NSFOCUS\"},\"image\":{\"@id\":\"https:\\\/\\\/nsfocusglobal.com\\\/#\\\/schema\\\/logo\\\/image\\\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/nsfocusglobal.com\\\/#\\\/schema\\\/person\\\/1077d8fcd7e52c96f17a33b63a0d157b\",\"name\":\"Jie Ji\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"pt-BR\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/61cb438513c138ce3f1f49e3485f113a0215220de5e284a2bd4e85358f6c8d02?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/61cb438513c138ce3f1f49e3485f113a0215220de5e284a2bd4e85358f6c8d02?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/61cb438513c138ce3f1f49e3485f113a0215220de5e284a2bd4e85358f6c8d02?s=96&d=mm&r=g\",\"caption\":\"Jie Ji\"},\"url\":\"https:\\\/\\\/nsfocusglobal.com\\\/pt-br\\\/author\\\/jji\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Linux Kernel Privilege Escalation Vulnerability (CVE-2022-0847) Alert - NSFOCUS","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/nsfocusglobal.com\/linux-kernel-privilege-escalation-vulnerability-cve-2022-0847-alert\/","og_locale":"pt_BR","og_type":"article","og_title":"Linux Kernel Privilege Escalation Vulnerability (CVE-2022-0847) Alert - NSFOCUS","og_description":"Overview Recently, NSFOCUS CERT detected that a security researcher disclosed a local privilege escalation vulnerability (CVE-2022-0847) in the Linux","og_url":"https:\/\/nsfocusglobal.com\/linux-kernel-privilege-escalation-vulnerability-cve-2022-0847-alert\/","og_site_name":"NSFOCUS","article_published_time":"2022-03-10T08:06:00+00:00","article_modified_time":"2026-04-17T18:07:44+00:00","og_image":[{"url":"https:\/\/nsfocusglobal.com\/wp-content\/uploads\/2019\/06\/linux.jpg","type":"","width":"","height":""}],"author":"Jie Ji","twitter_card":"summary_large_image","twitter_title":"Linux Kernel Privilege Escalation Vulnerability (CVE-2022-0847) Alert - NSFOCUS","twitter_description":"Overview Recently, NSFOCUS CERT detected that a security researcher disclosed a local privilege escalation vulnerability (CVE-2022-0847) in the Linux","twitter_image":"https:\/\/nsfocusglobal.com\/wp-content\/uploads\/2019\/06\/linux.jpg","twitter_misc":{"Escrito por":"Jie Ji","Est. tempo de leitura":"3 minutos"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/nsfocusglobal.com\/linux-kernel-privilege-escalation-vulnerability-cve-2022-0847-alert\/#article","isPartOf":{"@id":"https:\/\/nsfocusglobal.com\/linux-kernel-privilege-escalation-vulnerability-cve-2022-0847-alert\/"},"author":{"name":"Jie Ji","@id":"https:\/\/nsfocusglobal.com\/#\/schema\/person\/1077d8fcd7e52c96f17a33b63a0d157b"},"headline":"Linux Kernel Privilege Escalation Vulnerability (CVE-2022-0847) Alert","datePublished":"2022-03-10T08:06:00+00:00","dateModified":"2026-04-17T18:07:44+00:00","mainEntityOfPage":{"@id":"https:\/\/nsfocusglobal.com\/linux-kernel-privilege-escalation-vulnerability-cve-2022-0847-alert\/"},"wordCount":474,"commentCount":0,"publisher":{"@id":"https:\/\/nsfocusglobal.com\/#organization"},"image":{"@id":"https:\/\/nsfocusglobal.com\/linux-kernel-privilege-escalation-vulnerability-cve-2022-0847-alert\/#primaryimage"},"thumbnailUrl":"https:\/\/nsfocusglobal.com\/wp-content\/uploads\/2019\/06\/linux.jpg","keywords":["CVE-2022-0847","Linux kernel","Linux Vulnerability"],"articleSection":["Blog","Emergency Response"],"inLanguage":"pt-BR","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/nsfocusglobal.com\/linux-kernel-privilege-escalation-vulnerability-cve-2022-0847-alert\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/nsfocusglobal.com\/linux-kernel-privilege-escalation-vulnerability-cve-2022-0847-alert\/","url":"https:\/\/nsfocusglobal.com\/linux-kernel-privilege-escalation-vulnerability-cve-2022-0847-alert\/","name":"Linux Kernel Privilege Escalation Vulnerability (CVE-2022-0847) Alert - NSFOCUS","isPartOf":{"@id":"https:\/\/nsfocusglobal.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/nsfocusglobal.com\/linux-kernel-privilege-escalation-vulnerability-cve-2022-0847-alert\/#primaryimage"},"image":{"@id":"https:\/\/nsfocusglobal.com\/linux-kernel-privilege-escalation-vulnerability-cve-2022-0847-alert\/#primaryimage"},"thumbnailUrl":"https:\/\/nsfocusglobal.com\/wp-content\/uploads\/2019\/06\/linux.jpg","datePublished":"2022-03-10T08:06:00+00:00","dateModified":"2026-04-17T18:07:44+00:00","breadcrumb":{"@id":"https:\/\/nsfocusglobal.com\/linux-kernel-privilege-escalation-vulnerability-cve-2022-0847-alert\/#breadcrumb"},"inLanguage":"pt-BR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/nsfocusglobal.com\/linux-kernel-privilege-escalation-vulnerability-cve-2022-0847-alert\/"]}]},{"@type":"ImageObject","inLanguage":"pt-BR","@id":"https:\/\/nsfocusglobal.com\/linux-kernel-privilege-escalation-vulnerability-cve-2022-0847-alert\/#primaryimage","url":"https:\/\/nsfocusglobal.com\/wp-content\/uploads\/2019\/06\/linux.jpg","contentUrl":"https:\/\/nsfocusglobal.com\/wp-content\/uploads\/2019\/06\/linux.jpg","width":430,"height":222,"caption":"Linux logo with Tux the penguin."},{"@type":"BreadcrumbList","@id":"https:\/\/nsfocusglobal.com\/linux-kernel-privilege-escalation-vulnerability-cve-2022-0847-alert\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/nsfocusglobal.com\/"},{"@type":"ListItem","position":2,"name":"Linux Kernel Privilege Escalation Vulnerability (CVE-2022-0847) Alert"}]},{"@type":"WebSite","@id":"https:\/\/nsfocusglobal.com\/#website","url":"https:\/\/nsfocusglobal.com\/","name":"NSFOCUS","description":"Security Made Smart and Simple","publisher":{"@id":"https:\/\/nsfocusglobal.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/nsfocusglobal.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"pt-BR"},{"@type":"Organization","@id":"https:\/\/nsfocusglobal.com\/#organization","name":"NSFOCUS","url":"https:\/\/nsfocusglobal.com\/","logo":{"@type":"ImageObject","inLanguage":"pt-BR","@id":"https:\/\/nsfocusglobal.com\/#\/schema\/logo\/image\/","url":"https:\/\/nsfocusglobal.com\/wp-content\/uploads\/2024\/08\/logo-ns.png","contentUrl":"https:\/\/nsfocusglobal.com\/wp-content\/uploads\/2024\/08\/logo-ns.png","width":248,"height":36,"caption":"NSFOCUS"},"image":{"@id":"https:\/\/nsfocusglobal.com\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/nsfocusglobal.com\/#\/schema\/person\/1077d8fcd7e52c96f17a33b63a0d157b","name":"Jie Ji","image":{"@type":"ImageObject","inLanguage":"pt-BR","@id":"https:\/\/secure.gravatar.com\/avatar\/61cb438513c138ce3f1f49e3485f113a0215220de5e284a2bd4e85358f6c8d02?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/61cb438513c138ce3f1f49e3485f113a0215220de5e284a2bd4e85358f6c8d02?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/61cb438513c138ce3f1f49e3485f113a0215220de5e284a2bd4e85358f6c8d02?s=96&d=mm&r=g","caption":"Jie Ji"},"url":"https:\/\/nsfocusglobal.com\/pt-br\/author\/jji\/"}]}},"_links":{"self":[{"href":"https:\/\/nsfocusglobal.com\/pt-br\/wp-json\/wp\/v2\/posts\/19319","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nsfocusglobal.com\/pt-br\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nsfocusglobal.com\/pt-br\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nsfocusglobal.com\/pt-br\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/nsfocusglobal.com\/pt-br\/wp-json\/wp\/v2\/comments?post=19319"}],"version-history":[{"count":0,"href":"https:\/\/nsfocusglobal.com\/pt-br\/wp-json\/wp\/v2\/posts\/19319\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nsfocusglobal.com\/pt-br\/wp-json\/wp\/v2\/media\/8904"}],"wp:attachment":[{"href":"https:\/\/nsfocusglobal.com\/pt-br\/wp-json\/wp\/v2\/media?parent=19319"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nsfocusglobal.com\/pt-br\/wp-json\/wp\/v2\/categories?post=19319"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nsfocusglobal.com\/pt-br\/wp-json\/wp\/v2\/tags?post=19319"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}![\"Red](\"https:\/\/nsfocusglobal.com\/wp-content\/uploads\/2022\/03\/0309a.jpg\")
<\/a><\/figure>\n\n\n\n