{"id":38942,"date":"2026-04-30T17:36:31","date_gmt":"2026-04-30T09:36:31","guid":{"rendered":"https:\/\/www.deepin.org\/?p=38942"},"modified":"2026-04-30T18:21:27","modified_gmt":"2026-04-30T10:21:27","slug":"linux-kernel-copy-fail-vulnerability-fix","status":"publish","type":"post","link":"https:\/\/www.deepin.cn\/zh\/linux-kernel-copy-fail-vulnerability-fix\/","title":{"rendered":"\u7d27\u6025\u5b89\u5168\u66f4\u65b0 | Linux Kernel Copy Fail \u672c\u5730\u63d0\u6743\u6f0f\u6d1e\u4fee\u590d\uff0c\u8bf7\u5c3d\u5feb\u5347\u7ea7\uff01"},"content":{"rendered":"<img loading=\"lazy\" class=\"alignnone size-full wp-image-38943\" src=\"https:\/\/www.deepin.org\/wp-content\/uploads\/2026\/04\/260430_\u526f\u672c.png\" alt=\"\" width=\"900\" height=\"383\" srcset=\"https:\/\/www.deepin.cn\/wp-content\/uploads\/2026\/04\/260430_\u526f\u672c.png 900w, https:\/\/www.deepin.cn\/wp-content\/uploads\/2026\/04\/260430_\u526f\u672c-300x128.png 300w, https:\/\/www.deepin.cn\/wp-content\/uploads\/2026\/04\/260430_\u526f\u672c-150x64.png 150w, https:\/\/www.deepin.cn\/wp-content\/uploads\/2026\/04\/260430_\u526f\u672c-768x327.png 768w, https:\/\/www.deepin.cn\/wp-content\/uploads\/2026\/04\/260430_\u526f\u672c-24x10.png 24w, https:\/\/www.deepin.cn\/wp-content\/uploads\/2026\/04\/260430_\u526f\u672c-36x15.png 36w, https:\/\/www.deepin.cn\/wp-content\/uploads\/2026\/04\/260430_\u526f\u672c-48x20.png 48w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><\/p>\n<p data-pm-slice=\"5 5 []\"><span data-font-family=\"default\">\ud83d\udd14\u00a0\u4eb2\u7231\u7684 deepin \u7528\u6237\u4e0e\u793e\u533a\u4f19\u4f34\u4eec\uff1a<\/span><\/p>\n<p data-pm-slice=\"0 0 []\"><span data-font-family=\"default\">\u8fd1\u671f\uff0cdeepin\uff08\u6df1\u5ea6\uff09\u793e\u533a\u76d1\u63a7\u5230 Linux \u5185\u6838\u5b58\u5728\u4e00\u4e2a\u9ad8\u5371\u672c\u5730\u63d0\u6743\u6f0f\u6d1e\u3002<\/span><\/p>\n<p>\u8be5\u6f0f\u6d1e\u88ab\u547d\u540d\u4e3a\u201cCopy Fail\u201d\uff08CVE-2026-31431\uff09\uff0c\u5b58\u5728\u4e8eLinux \u5185\u6838\u52a0\u5bc6\u5b50\u7cfb\u7edf\uff08algif_aead\u6a21\u5757\uff09\u4e2d\u3002\u6f0f\u6d1e\u6e90\u4e8e2017\u5e74\u5f15\u5165\u7684\u4e00\u9879\u4ee3\u7801\u4f18\u5316\uff0c\u5bfc\u81f4 AF_ALG \u52a0\u5bc6\u63a5\u53e3\u5728\u5904\u7406 AEAD \u52a0\u5bc6\u64cd\u4f5c\u65f6\uff0c\u6e90\u7f13\u51b2\u533a\u4e0e\u76ee\u6807\u7f13\u51b2\u533a\u53ef\u80fd\u5171\u4eab\u540c\u4e00\u5757\u5185\u6838\u9875\u7f13\u5b58\u9875\u9762\u3002<\/p>\n<p>\u9274\u4e8e\u5176\u4e25\u91cd\u6027\u548c\u5e7f\u6cdb\u5f71\u54cd\uff0c<span data-font-family=\"default\">\u4e3a\u786e\u4fdd\u60a8\u7684\u7cfb\u7edf\u5b89\u5168\uff0c\u6211\u4eec\u5f3a\u70c8\u5efa\u8bae\u6240\u6709\u7528\u6237\u5c3d\u5feb\u5347\u7ea7\u3002<\/span><\/p>\n<p>&nbsp;<\/p>\n<section data-pm-slice=\"0 0 []\">\n<section>\n<section>\n<section>\n<section>\n<section>\n<section>\n<section>\n<section>\n<section>\n<h1><strong>01 \u6f0f\u6d1e\u4fe1\u606f<\/strong><\/h1>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<p><strong>\u6f0f\u6d1e\u7f16\u53f7\uff1a<\/strong>CVE-2026-31431<\/p>\n<p><strong>\u6f0f\u6d1e\u63cf\u8ff0\uff1a<\/strong>\u8be5\u6f0f\u6d1e\u6e90\u4e8eLinux \u5185\u6838\u52a0\u5bc6\u5b50\u7cfb\u7edf algif_aead \u6a21\u5757\u4e2d\u7684\u4e00\u5904\u903b\u8f91\u7f3a\u9677\u30022017\u5e74\u7684\u4e00\u9879\u4f18\u5316\u5f15\u5165\u4e86 in-place \u64cd\u4f5c\uff0c\u4f7f\u5f97\u5173\u8054\u6570\u636e\uff08AD\uff09\u5904\u7406\u65f6\u6e90\u548c\u76ee\u6807\u7684\u5185\u5b58\u6620\u5c04\u4e0d\u4e00\u81f4\uff0c\u5bfc\u81f4\u5185\u6838\u9875\u7f13\u5b58\u9875\u9762\u88ab\u6df7\u5165\u53ef\u5199\u6563\u5217\u8868\u3002\u653b\u51fb\u8005\u5229\u7528AF_ALG\u52a0\u5bc6\u63a5\u53e3\u548csplice()\u7cfb\u7edf\u8c03\u7528\u7ec4\u5408\uff0c\u53ef\u5411\u4efb\u610f\u53ef\u8bfb\u6587\u4ef6\uff08\u5982setuid\u7a0b\u5e8f\/usr\/bin\/su\uff09\u7684\u9875\u7f13\u5b58\u5199\u51654\u5b57\u8282\u53d7\u63a7\u6570\u636e\u3002\u7531\u4e8e\u9875\u7f13\u5b58\u7531\u540c\u4e00\u5185\u6838\u4e0a\u6240\u6709\u8fdb\u7a0b\u5171\u4eab\uff0c\u7be1\u6539 setuid \u7a0b\u5e8f\u540e\u518d\u6b21\u6267\u884c\u5373\u53ef\u83b7\u5f97 root \u6743\u9650\u3002<\/p>\n<p><strong>\u6f0f\u6d1e\u7b49\u7ea7\uff1a<\/strong>\u9ad8\u5371<\/p>\n<p><strong>\u5229\u7528\u6761\u4ef6\uff1a<\/strong>\u653b\u51fb\u8005\u5177\u5907\u672c\u5730\u666e\u901a\u7528\u6237\u6743\u9650\u5373\u53ef\u53d1\u8d77\u653b\u51fb<\/p>\n<p><strong>\u5f71\u54cd\u8303\u56f4\uff1a<\/strong>\u6240\u6709\u672a\u66f4\u65b0 deepin 25 \u7684\u7528\u6237\u5747\u53d7\u5f71\u54cd\uff0c\u5efa\u8bae\u7acb\u5373\u66f4\u65b0\u5347\u7ea7\u3002<\/p>\n<p>&nbsp;<\/p>\n<section data-pm-slice=\"0 0 []\">\n<section>\n<section>\n<section>\n<section>\n<section>\n<section>\n<section>\n<section>\n<section>\n<h1><strong>02 \u4fee\u590d\u8fdb\u5c55<\/strong><\/h1>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<ul class=\"list-paddingleft-1\">\n<li>deepin 25\uff086.18 \u5185\u6838\uff09\uff1a\u5df2\u63a8\u9001\u4fee\u590d\u66f4\u65b0\uff0c\u8bf7\u5c3d\u5feb\u5347\u7ea7\uff01<\/li>\n<\/ul>\n<ul class=\"list-paddingleft-1\">\n<li>deepin 25\uff086.6 \u5185\u6838\uff09\uff1a\u5df2\u5b8c\u6210\u4fee\u590d\uff0c\u8bf7\u5173\u6ce8\u540e\u7eed\u7cfb\u7edf\u66f4\u65b0\u3002<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>deepin \u4f5c\u4e3a\u5728<a href=\"https:\/\/distrowatch.com\/table.php?distribution=deepin\" data-lark-is-custom=\"true\">\u00a0DistroWatch \u5168\u7403\u6392\u540d\u4e2d\u8868\u73b0\u4eae\u773c\u3001\u5e7f\u53d7\u5168\u7403\u7528\u6237\u8ba4\u53ef\u7684\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edf<\/a><strong>\uff0c<\/strong>\u6301\u7eed\u8fed\u4ee3\u6f0f\u6d1e\u54cd\u5e94\uff0c\u5168\u529b\u6253\u9020\u7a33\u5b9a\u53ef\u4fe1\u3001\u5b89\u5168\u65e0\u5fe7\u7684\u5f00\u6e90\u684c\u9762\u751f\u6001\u00a0\u3002<\/p>\n<p>\u5982\u60a8\u5728\u66f4\u65b0\u548c\u4f7f\u7528\u8fc7\u7a0b\u4e2d\u9047\u5230\u4efb\u4f55\u95ee\u9898\uff0c\u6b22\u8fce\u524d\u5f80<a href=\"https:\/\/bbs.deepin.org\/post\/297826\">deepin\u8bba\u575b\u4e13\u5e16<\/a>\u53cd\u9988\u8ba8\u8bba\uff01","protected":false},"excerpt":{"rendered":"<p>\ud83d\udd14\u00a0\u4eb2\u7231\u7684 deepin \u7528\u6237\u4e0e\u793e\u533a\u4f19\u4f34\u4eec\uff1a \u8fd1\u671f\uff0cdeepin\uff08\u6df1\u5ea6\uff09\u793e\u533a\u76d1\u63a7\u5230 Linux \u5185\u6838\u5b58\u5728\u4e00\u4e2a\u9ad8\u5371\u672c\u5730\u63d0\u6743\u6f0f\u6d1e\u3002 \u8be5\u6f0f\u6d1e\u88ab\u547d\u540d\u4e3a\u201cCopy Fail\u201d\uff08CVE-2026-31431\uff09\uff0c\u5b58\u5728\u4e8eLinux \u5185\u6838\u52a0\u5bc6\u5b50\u7cfb\u7edf\uff08algif_aead\u6a21\u5757\uff09\u4e2d\u3002\u6f0f\u6d1e\u6e90\u4e8e2017\u5e74\u5f15\u5165\u7684\u4e00\u9879\u4ee3\u7801\u4f18\u5316\uff0c\u5bfc\u81f4 AF_ALG \u52a0\u5bc6\u63a5\u53e3\u5728\u5904\u7406 AEAD \u52a0\u5bc6\u64cd\u4f5c\u65f6\uff0c\u6e90\u7f13\u51b2\u533a\u4e0e\u76ee\u6807\u7f13\u51b2\u533a\u53ef\u80fd\u5171\u4eab\u540c\u4e00\u5757\u5185\u6838\u9875\u7f13 ...<a href=https:\/\/www.deepin.cn\/zh\/linux-kernel-copy-fail-vulnerability-fix\/>\u9605\u8bfb\u66f4\u591a<\/a><\/p>\n","protected":false},"author":18825,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[75,93],"tags":[],"_links":{"self":[{"href":"https:\/\/www.deepin.cn\/zh\/wp-json\/wp\/v2\/posts\/38942"}],"collection":[{"href":"https:\/\/www.deepin.cn\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.deepin.cn\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.deepin.cn\/zh\/wp-json\/wp\/v2\/users\/18825"}],"replies":[{"embeddable":true,"href":"https:\/\/www.deepin.cn\/zh\/wp-json\/wp\/v2\/comments?post=38942"}],"version-history":[{"count":3,"href":"https:\/\/www.deepin.cn\/zh\/wp-json\/wp\/v2\/posts\/38942\/revisions"}],"predecessor-version":[{"id":38949,"href":"https:\/\/www.deepin.cn\/zh\/wp-json\/wp\/v2\/posts\/38942\/revisions\/38949"}],"wp:attachment":[{"href":"https:\/\/www.deepin.cn\/zh\/wp-json\/wp\/v2\/media?parent=38942"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deepin.cn\/zh\/wp-json\/wp\/v2\/categories?post=38942"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deepin.cn\/zh\/wp-json\/wp\/v2\/tags?post=38942"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}