{"id":1557,"date":"2018-01-10T23:23:03","date_gmt":"2018-01-10T14:23:03","guid":{"rendered":"https:\/\/pandanote.info\/?p=1557"},"modified":"2018-01-10T23:23:03","modified_gmt":"2018-01-10T14:23:03","slug":"meltdown%e5%af%be%e5%bf%9c-for-fedora-26-27","status":"publish","type":"post","link":"https:\/\/pandanote.info\/?p=1557","title":{"rendered":"Meltdown\u5bfe\u5fdc for Fedora 26\/27"},"content":{"rendered":"

\u306f\u3058\u3081\u306b<\/h2>\n

2018\u5e74\u306e\u5e74\u660e\u3051\u65e9\u3005\u304b\u3089CPU\u306e\u8106\u5f31\u6027(Meltdown\u53ca\u3073Spectre)\u304c\u8a71\u984c\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002Meltdown\u3068Spectre\u306f\u5f71\u97ff\u304c\u5e83\u7bc4\u56f2\u306b\u53ca\u3073\u305d\u3046\u306a\u3053\u3068\u3068\u3001\u5f71\u97ff\u304c\u5e83\u7bc4\u56f2\u3067\u3042\u308b\u304c\u6545\u306b\u653b\u6483\u7528\u306e\u30c4\u30fc\u30eb\u306a\u3069\u304c\u51fa\u56de\u308b\u306e\u306f\u6642\u9593\u306e\u554f\u984c\u3067\u3042\u308b\u3068\u8003\u3048\u3089\u308c\u308b\u3053\u3068\u304b\u3089\u3001\u81ea\u5206\u304c\u7ba1\u7406\u3057\u3066\u3044\u308bFedora 26\u53ca\u307327\u306b\u5bfe\u3057\u3066\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3092\u884c\u3046\u3053\u3068\u3068\u3057\u307e\u3057\u305f\u3002<\/p>\n

\u306a\u304a\u3001Fedora 26\u306e\u30b5\u30fc\u30d0\u304c\u6b8b\u3063\u3066\u3044\u308b\u3053\u3068\u306b\u3064\u3044\u3066\u306f\u898b\u306a\u304b\u3063\u305f\u3053\u3068\u306b\u3057\u3066\u3044\u305f\u3060\u3051\u308b\u3068\u5e78\u3044\u3067\u3059\u3002(\u00b4\u30fb\u03c9\u30fb\uff40)<\/p>\n

\u5bfe\u5fdc\u306e\u65b9\u6cd5<\/h2>\n

Fedora 26, 27\u306e\u3069\u3061\u3089\u306b\u3064\u3044\u3066\u3082kernel\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u5bfe\u5fdc\u3057\u307e\u3059\u3002<\/p>\n

\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u306e\u65b9\u6cd5\u306f\u5171\u901a\u3067\u3042\u308a\u3001root\u6a29\u9650\u3067\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002<\/p>\n

# dnf –refresh update kernel <\/div>\n

 
\n\u5fc5\u8981\u306a\u30d7\u30ed\u30b0\u30e9\u30e0\u304c\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3055\u308c\u308b\u3068\u3001\u7d9a\u884c\u3059\u308b\u304b\u3069\u3046\u304b\u305f\u305a\u306d\u3089\u308c\u308b\u306e\u3067\u3001\u8ff7\u308f\u305a”y”\u3068\u5165\u529b\u3057\u3001Enter\u30ad\u30fc\u3092\u62bc\u3057\u307e\u3059\u3002\u3059\u308b\u3068kernel\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u304c\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3055\u308c\u307e\u3059\u306e\u3067\u3001\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3057\u3066\u30b7\u30b9\u30c6\u30e0\u3092\u518d\u8d77\u52d5\u3057\u307e\u3059\u3002<\/p>\n

# shutdown -r now<\/div>\n

 <\/p>\n

\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u306e\u78ba\u8a8d<\/h2>\n

\u30b7\u30b9\u30c6\u30e0\u306e\u518d\u8d77\u52d5\u5f8c\u3001kernel\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u306a\u304a\u3001uname\u30b3\u30de\u30f3\u30c9\u306e\u5b9f\u884c\u7d50\u679c\u4e2d\u306e\u30db\u30b9\u30c8\u540d\u306e\u90e8\u5206\u306f\u672c\u8a18\u4e8b\u3078\u306e\u8ee2\u8a18\u6642\u306b\u7de8\u96c6\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n

Fedora 26\u306e\u5834\u5408<\/h3>\n
[panda@pandanote.info ~]$ uname -a
\nLinux pandanote.info 4.14.11-200.fc26.x86_64 #1 SMP Wed Jan 3 13:58:53 UTC 2018 x86_64 x86_64 x86_64 GNU\/Linux<\/div>\n

 
\n\u30ab\u30fc\u30cd\u30eb\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u304c4.14.11\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u6b21\u306b\/proc\/cpuinfo\u306e\u5185\u5bb9\u3092(\u5927\u96d1\u628a\u3067\u3059\u304c)\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n

[panda@pandanote.info ~]$ cat \/proc\/cpuinfo | grep bugs
\nbugs : cpu_insecure<\/div>\n

 
\ncpu_insecure\u304c\u8868\u793a\u3055\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n

Fedora 27\u306e\u5834\u5408<\/h3>\n
[panda@pandanote.info ~]$ uname -a
\nLinux pandanote.info 4.14.11-300.fc27.x86_64 #1 SMP Wed Jan 3 13:52:28 UTC 2018 x86_64 x86_64 x86_64 GNU\/Linux<\/div>\n

 
\nFedora 27\u306e\u5834\u5408\u3082\u30ab\u30fc\u30cd\u30eb\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u304c4.14.11\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u6b21\u306b\/proc\/cpuinfo\u306e\u5185\u5bb9\u3092(\u5927\u96d1\u628a\u3067\u3059\u304c)\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n

[panda@pandanote.info ~]$ cat \/proc\/cpuinfo | grep bugs
\nbugs : cpu_insecure
\nbugs : cpu_insecure
\nbugs : cpu_insecure
\nbugs : cpu_insecure<\/div>\n

 
\ncpu_insecure\u304c4\u56de\u8868\u793a\u3055\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u3053\u308c\u306f\u8a8d\u8b58\u3055\u308c\u308bCPU\u306e\u6570\u304c4\u500b\u3067\u3042\u308b\u3053\u3068\u306b\u3088\u308b\u3082\u306e\u3067\u3059\u3002<\/p>\n

\u307e\u3068\u3081<\/h2>\n

\u672c\u8a18\u4e8b\u3067\u306fFedora 26\u53ca\u307327\u306b\u5bfe\u3059\u308bMeltdown\u3078\u306e\u5bfe\u5fdc\u7528\u306ekernel\u306e\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u306e\u9069\u7528\u306e\u65b9\u6cd5\u3068\u5b9f\u969b\u306e\u9069\u7528\u72b6\u6cc1\u306e\u78ba\u8a8d\u306e\u65b9\u6cd5\u306b\u3064\u3044\u3066\u66f8\u304d\u307e\u3057\u305f\u3002Spectre\u3078\u306e\u5bfe\u5fdc\u306b\u3064\u3044\u3066\u306f\u5bfe\u5fdc\u7b56\u304c\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u6b21\u7b2c\u3001\u8a18\u8ff0\u3059\u308b\u4e88\u5b9a\u3067\u3059\u3002<\/p>\n

\u3053\u306e\u8a18\u4e8b\u306f\u4ee5\u4e0a\u3067\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u306f\u3058\u3081\u306b 2018\u5e74\u306e\u5e74\u660e\u3051\u65e9\u3005\u304b\u3089CPU\u306e\u8106\u5f31\u6027(Meltdown\u53ca\u3073Spectre)\u304c\u8a71\u984c\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002Meltdown\u3068Spectre\u306f\u5f71\u97ff\u304c\u5e83\u7bc4\u56f2\u306b\u53ca\u3073\u305d\u3046\u306a\u3053\u3068\u3068\u3001\u5f71\u97ff\u304c\u5e83\u7bc4\u56f2\u3067\u3042\u308b\u304c\u6545\u306b\u653b\u6483\u7528\u306e\u30c4\u30fc\u30eb\u306a\u3069\u304c\u51fa\u56de\u308b\u306e\u306f\u6642\u9593\u306e\u554f\u984c\u3067\u3042\u308b\u3068\u8003\u3048\u3089\u308c\u308b\u3053\u3068\u304b\u3089\u3001\u81ea\u5206\u304c\u7ba1\u7406\u3057\u3066\u3044\u308bFedora 26\u53ca\u307327\u306b\u5bfe\u3057\u3066\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3092\u884c\u3046\u3053\u3068\u3068\u3057\u307e\u3057\u305f\u3002 \u306a\u304a\u3001Fedora 26\u306e\u30b5\u30fc\u30d0\u304c\u6b8b\u3063\u3066\u3044\u308b\u2026 Read More »<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-1557","post","type-post","status-publish","format-standard","hentry","category-fedora"],"_links":{"self":[{"href":"https:\/\/pandanote.info\/index.php?rest_route=\/wp\/v2\/posts\/1557","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pandanote.info\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pandanote.info\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pandanote.info\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/pandanote.info\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1557"}],"version-history":[{"count":3,"href":"https:\/\/pandanote.info\/index.php?rest_route=\/wp\/v2\/posts\/1557\/revisions"}],"predecessor-version":[{"id":1561,"href":"https:\/\/pandanote.info\/index.php?rest_route=\/wp\/v2\/posts\/1557\/revisions\/1561"}],"wp:attachment":[{"href":"https:\/\/pandanote.info\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1557"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pandanote.info\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1557"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pandanote.info\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1557"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}