{"id":134198,"date":"2026-05-09T11:10:25","date_gmt":"2026-05-09T02:10:25","guid":{"rendered":"https:\/\/softantenna.com\/blog\/?p=134198"},"modified":"2026-05-09T11:10:25","modified_gmt":"2026-05-09T02:10:25","slug":"dirty-frag-linux-zero-day","status":"publish","type":"post","link":"https:\/\/softantenna.com\/blog\/dirty-frag-linux-zero-day\/","title":{"rendered":"Linux\u306b\u307e\u305f\u300c\u5373root\u300d\u30d0\u30b0\u2500\u2500Dirty Frag\u304c\u30d1\u30c3\u30c1\u306a\u3057\u3067\u91ce\u306b\u653e\u305f\u308c\u308b"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/softantenna.com\/blog\/wp-content\/uploads\/2026\/05\/s_20260509-_104633.webp\" alt=\"\" width=\"1280\" height=\"720\" class=\"aligncenter size-full wp-image-134199\" \/><\/p>\n<p>Linux\u30ab\u30fc\u30cd\u30eb\u306b\u3001\u307e\u305f\u3057\u3066\u3082\u6df1\u523b\u306a\u30ed\u30fc\u30ab\u30eb\u6a29\u9650\u6607\u683c(LPE)\u8106\u5f31\u6027\u300c<a href=\"https:\/\/github.com\/V4bel\/dirtyfrag\">Dirty Frag<\/a>\u300d\u304c\u767a\u898b\u3055\u308c\u307e\u3057\u305f\u3002<br \/>\n\u6700\u8fd1\u898b\u3064\u304b\u3063\u305f\u300c<a href=\"https:\/\/softantenna.com\/blog\/linux-vulnerability-copy-fail\/\">Copy Fail<\/a>\u300d\u306e\u6df7\u4e71\u304c\u307e\u3060\u53ce\u307e\u3089\u306a\u3044\u4e2d\u3001\u4eca\u56de\u306f\u3055\u3089\u306b\u72b6\u6cc1\u304c\u60aa\u304f\u3001\u30d1\u30c3\u30c1\u306a\u3057\u30fbCVE\u306a\u3057\u30fb\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u306f\u3059\u3067\u306b\u516c\u958b\u6e08\u307f \u3068\u3044\u3046\u4e09\u91cd\u82e6\u306e\u72b6\u614b\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u8106\u5f31\u6027\u3092<a href=\"https:\/\/www.openwall.com\/lists\/oss-security\/2026\/05\/07\/8\">\u5831\u544a<\/a>\u3057\u305f\u306e\u306f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u7814\u7a76\u8005\u306eHyunwoo Kim\u6c0f\u3067\u3059\u3002\u672c\u6765\u306f\u975e\u516c\u958b\u3067\u8abf\u6574\u4e2d\u3060\u3063\u305f\u3082\u306e\u306e\u3001\u7b2c\u4e09\u8005\u304cexploit\u60c5\u5831\u3092\u5148\u306b\u6d41\u51fa\u3055\u305b\u305f\u305f\u3081embargo\u30d7\u30ed\u30bb\u30b9\u304c\u5d29\u58ca\u3057\u3001\u7d50\u679c\u3068\u3057\u3066\u3001\u30d1\u30c3\u30c1\u304c\u5b58\u5728\u3057\u306a\u3044\u307e\u307eDirty Frag\u306e\u8a73\u7d30\u304c\u516c\u958b\u3055\u308c\u308b\u4e8b\u614b\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n<p class=\"is-style-icon_info\">embargo(\u30a8\u30f3\u30d0\u30fc\u30b4)\u306f\u60c5\u5831\u306e\u516c\u958b\u3092\u4e00\u5b9a\u671f\u9593\u7981\u6b62\u3059\u308b\u53d6\u308a\u6c7a\u3081\u306e\u3053\u3068\u3067\u3059<\/p>\n<p>Kim\u6c0f\u306fDirty Frag\u3092\u300c\u3059\u3079\u3066\u306e\u4e3b\u8981\u30c7\u30a3\u30b9\u30c8\u30ed\u306b\u52b9\u304f\u30e6\u30cb\u30d0\u30fc\u30b5\u30ebLPE\u300d\u3068\u8868\u73fe\u3057\u3001Copy Fail\u3068\u540c\u7b49\u306e\u5373\u6642root\u53d6\u5f97\u304c\u53ef\u80fd\u3060\u3068\u8b66\u544a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>Dirty Frag\u306e\u6b63\u4f53: 2\u3064\u306e\u30ab\u30fc\u30cd\u30eb\u30d0\u30b0\u3092\u9023\u9396\u3055\u305b\u305f\u653b\u6483<\/h2>\n<p>Dirty Frag\u306f\u5358\u72ec\u306e\u30d0\u30b0\u3067\u306f\u306a\u304f\u3001\u4ee5\u4e0b\u306e2\u3064\u306e\u72ec\u7acb\u3057\u305f\u30ab\u30fc\u30cd\u30eb\u8106\u5f31\u6027\u3092\u7d44\u307f\u5408\u308f\u305b\u3066root\u3092\u596a\u3046\u3068\u3044\u3046\u70b9\u304c\u7279\u5fb4\u3067\u3059\u3002<\/p>\n<ul>\n<li>xfrm-ESP\u306e\u6b20\u9665(2017\u5e74\u306e\u30b3\u30df\u30c3\u30c8\u304c\u8d77\u6e90)<\/li>\n<li>RxRPC\u306e\u8106\u5f31\u6027(2023\u5e74\u306b\u5c0e\u5165)<\/li>\n<\/ul>\n<p>\u3053\u306e2\u3064\u3092\u30c1\u30a7\u30fc\u30f3\u3055\u305b\u308b\u3053\u3068\u3067\u3001\u975e\u7279\u6a29\u30e6\u30fc\u30b6\u30fc\u3067\u3082\u4fdd\u8b77\u3055\u308c\u305f\u30e1\u30e2\u30ea\u9818\u57df\u3092\u66f8\u304d\u63db\u3048\u3089\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u3001\u6700\u7d42\u7684\u306b root \u6a29\u9650\u3078\u5230\u9054\u3067\u304d\u308b\u3068\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u5f71\u97ff\u3092\u53d7\u3051\u308b\u30c7\u30a3\u30b9\u30c8\u30ea\u30d3\u30e5\u30fc\u30b7\u30e7\u30f3\u306f\u975e\u5e38\u306b\u5e83\u304f\u3001Ubuntu \/ RHEL \/ CentOS Stream \/ Fedora \/ AlmaLinux \/ openSUSE Tumbleweed\u306a\u3069\u3001\u4e3b\u8981\u3069\u3053\u308d\u304c\u8ed2\u4e26\u307f\u30ea\u30b9\u30c8\u5165\u308a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>\u3055\u3089\u306b\u6df7\u4e71\u3092\u62db\u304f\u72ec\u7acb\u30ea\u30d0\u30fc\u30b9\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u554f\u984c<\/h2>\n<p>\u554f\u984c\u3092\u8907\u96d1\u306b\u3057\u3066\u3044\u308b\u306e\u306f\u3001Kim\u6c0f\u3068\u306f\u5225\u306e\u7814\u7a76\u8005\u304c\u516c\u958b\u3055\u308c\u305f\u30ab\u30fc\u30cd\u30eb\u4fee\u6b63\u30b3\u30df\u30c3\u30c8\u304b\u3089\u8106\u5f31\u6027\u306e\u4e00\u90e8\u3092\u9006\u89e3\u6790\u3057\u3066\u3057\u307e\u3063\u305f\u3053\u3068\u3067\u3059\u3002GitHub\u306b\u306f\u300c<a href=\"https:\/\/github.com\/0xdeadbeefnetwork\/Copy_Fail2-Electric_Boogaloo\">Copy Fail 2: Electric Boogaloo<\/a>\u300d\u3068\u984c\u3057\u305fPoC\u307e\u3067\u767b\u5834\u3057\u3001Dirty Frag\u306e\u4e00\u90e8\u3092\u5358\u72ec\u3067\u60aa\u7528\u3067\u304d\u308b\u72b6\u614b\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3064\u307e\u308a\u3001\u8907\u6570\u30eb\u30fc\u30c8\u3067exploit\u304c\u5e83\u307e\u308a\u3001\u30d1\u30c3\u30c1\u306f\u307e\u3060\u5b58\u5728\u3057\u306a\u3044\u3068\u3044\u3046\u6700\u60aa\u306e\u30bf\u30a4\u30df\u30f3\u30b0\u3067\u60c5\u5831\u304c\u62e1\u6563\u3057\u3066\u3044\u308b\u308f\u3051\u3067\u3059\u3002<\/p>\n<h2>\u7ba1\u7406\u8005\u306b\u6b8b\u3055\u308c\u305f\u306e\u306f\"\u82e6\u3057\u3044\u66ab\u5b9a\u7b56\"\u306e\u307f<\/h2>\n<p>Kim\u6c0f\u306f\u4e00\u5fdc\u306e\u30ef\u30fc\u30af\u30a2\u30e9\u30a6\u30f3\u30c9\u3068\u3057\u3066\u3001ESP\u3068RxRPC\u306e\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u7121\u52b9\u5316\u3057\u3001\u30da\u30fc\u30b8\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u30af\u30ea\u30a2\u3059\u308b\u65b9\u6cd5\u3092\u63d0\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u3053\u308c\u306f\u300c\u30ab\u30fc\u30cd\u30eb\u306e\u4e00\u90e8\u3092\u6b62\u3081\u3066\u7948\u308b\u300d\u30bf\u30a4\u30d7\u306e\u66ab\u5b9a\u7b56\u3067\u3042\u308a\u3001\u672c\u8cea\u7684\u306a\u89e3\u6c7a\u306b\u306f\u7a0b\u9060\u3044\u306e\u304c\u73fe\u5b9f\u3067\u3059\u3002<\/p>\n<p>Copy Fail\u306f\u3059\u3067\u306bCISA\u306eKEV(\u65e2\u77e5\u60aa\u7528\u8106\u5f31\u6027)\u30ea\u30b9\u30c8\u5165\u308a\u3057\u3001\u5b9f\u969b\u306e\u653b\u6483\u3082\u78ba\u8a8d\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3057\u304b\u3057Dirty Frag\u306f\u305d\u308c\u4ee5\u4e0a\u306b\u6df7\u4e71\u3057\u3066\u304a\u308a\u3001CVE\u306a\u3057\u30d1\u30c3\u30c1\u306a\u3057\u3001exploit\u516c\u958b\u6e08\u307f\u3001embargo\u5d29\u58ca\u3001\u5f71\u97ff\u7bc4\u56f2\u304c\u5e83\u3044\u3068\u3044\u3046\u7ba1\u7406\u8005\u306b\u3068\u3063\u3066\u6700\u60aa\u306e\u6761\u4ef6\u304c\u63c3\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>Linux\u7ba1\u7406\u8005\u306f\u65b0\u3057\u3044\u60c5\u5831\u3092\u5e38\u306b\u8ffd\u8de1\u3057\u3066\u304a\u304f\u5fc5\u8981\u304c\u3042\u308a\u305d\u3046\u3067\u3059\u3002<\/p>\n<p>[via <a href=\"https:\/\/www.theregister.com\/security\/2026\/05\/08\/dirty-frag-linux-flaw-one-ups-copyfail-with-no-patches-and-public-root-exploit\/5237230\">The Register<\/a>]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Linux\u30ab\u30fc\u30cd\u30eb\u306b\u3001\u307e\u305f\u3057\u3066\u3082\u6df1\u523b\u306a\u30ed\u30fc\u30ab\u30eb\u6a29\u9650\u6607\u683c(LPE)\u8106\u5f31\u6027\u300cDirty Frag\u300d\u304c\u767a\u898b\u3055\u308c\u307e\u3057\u305f\u3002 \u6700\u8fd1\u898b\u3064\u304b\u3063\u305f\u300cCopy Fail\u300d\u306e\u6df7\u4e71\u304c\u307e\u3060\u53ce\u307e\u3089\u306a\u3044\u4e2d\u3001\u4eca\u56de\u306f\u3055\u3089\u306b\u72b6\u6cc1\u304c\u60aa\u304f\u3001\u30d1\u30c3\u30c1\u306a\u3057\u30fbCVE\u306a [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":134199,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"swell_btn_cv_data":"","footnotes":""},"categories":[75],"tags":[37],"class_list":["post-134198","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-software","tag-linux"],"_links":{"self":[{"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/posts\/134198","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/comments?post=134198"}],"version-history":[{"count":0,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/posts\/134198\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/media\/134199"}],"wp:attachment":[{"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/media?parent=134198"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/categories?post=134198"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/tags?post=134198"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}