{"id":285735,"date":"2023-11-09T09:00:42","date_gmt":"2023-11-09T01:00:42","guid":{"rendered":"https:\/\/lrxjmw.cn\/?p=285735"},"modified":"2023-10-31T15:30:15","modified_gmt":"2023-10-31T07:30:15","slug":"ggxlnhtjmsbd","status":"publish","type":"post","link":"https:\/\/lrxjmw.cn\/ggxlnhtjmsbd.html","title":{"rendered":"\u8c37\u6b4c\u5411 Linux \u5185\u6838\u63d0\u4ea4 mseal () syscall \u8865\u4e01"},"content":{"rendered":"<table>\n<tbody>\n<tr>\n<td style=\"padding: 5px 12px; width: 25px; font-size: 22px; text-align: center; background: #E8E8E8; line-height: 30px; color: #999;\">\u5bfc\u8bfb<\/td>\n<td style=\"padding: 10px 10px 12px; line-height: 20px;\"><strong>\u8c37\u6b4c\u5de5\u7a0b\u5e08\u8fd1\u65e5\u5411 Linux \u5185\u6838\u63d0\u4ea4\u4e86\u4e00\u4e2a\u65b0\u8865\u4e01\uff0c\u5e0c\u671b\u4e3a\u5176\u6dfb\u52a0\u540d\u4e3a mseal () \u7684\u7cfb\u7edf\u8c03\u7528\u300cmseal() syscall\u300d\u3002<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2023\/10\/182107_uGso_2720166.webp\" alt=\"\" width=\"1066\" height=\"451\" class=\"alignnone size-full wp-image-285736\" srcset=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2023\/10\/182107_uGso_2720166.webp 1066w, https:\/\/lrxjmw.cn\/wp-content\/uploads\/2023\/10\/182107_uGso_2720166-300x127.webp 300w, https:\/\/lrxjmw.cn\/wp-content\/uploads\/2023\/10\/182107_uGso_2720166-1024x433.webp 1024w, https:\/\/lrxjmw.cn\/wp-content\/uploads\/2023\/10\/182107_uGso_2720166-150x63.webp 150w, https:\/\/lrxjmw.cn\/wp-content\/uploads\/2023\/10\/182107_uGso_2720166-768x325.webp 768w\" sizes=\"auto, (max-width: 1066px) 100vw, 1066px\" \/><\/p>\n<p>\u636e\u4ecb\u7ecd\uff0c \u8c37\u6b4c\u8fd9\u4e2a\u72ec\u7acb\u4e8e\u67b6\u6784\u7684\u7cfb\u7edf\u8c03\u7528\u6700\u521d\u7531 Chrome OS \u4e0a\u7684 Chrome \u6d4f\u89c8\u5668\u4f7f\u7528\u3002\u5f53\u65f6 Glibc \u4e5f\u5728\u52a8\u6001\u94fe\u63a5\u5668\u4e2d\u8fdb\u884c\u7c7b\u4f3c\u7684\u5b9e\u9a8c\uff0c\u4ee5\u5728\u542f\u52a8\u65f6\u5c01\u88c5\u6240\u6709\u4e0d\u53ef\u5199\u7684\u6bb5\u3002<\/p>\n<p>\u901a\u8fc7 mseal () \u53ef\u9632\u6b62\u7cfb\u7edf\u8c03\u7528\u4fee\u6539\u865a\u62df\u5730\u5740\u7684\u5143\u6570\u636e\u3002\u6700\u521d\u652f\u6301\u7684\u662f\u9488\u5bf9 mprotect\/pkey_mprotect\u3001munmap\u3001mmap \u548c mremap \u8c03\u7528\u8fdb\u884c\u5c01\u88c5\u3002\u4e3a\u4e86\u5728 Chrome \u548c V8 JavaScript \u5f15\u64ce\u4e2d\u63d0\u4f9b\u66f4\u597d\u7684\u4fdd\u62a4\uff0c\u5f00\u53d1\u8005\u6b63\u5728\u5bfb\u6c42\u4f7f\u865a\u62df\u5185\u5b58\u533a\u57df\u7684\u5143\u6570\u636e\u4e0d\u53ef\u53d8\u3002<\/p>\n<p>Glibc \u7684\u65b9\u6848\u662f\u5728\u52a8\u6001\u94fe\u63a5\u5668\u4e2d\u6dfb\u52a0\u5c01\u88c5\uff0c\u4ee5\u4fbf\u5728\u542f\u52a8\u65f6\u5bf9\u6240\u6709\u4e0d\u53ef\u5199\u6bb5\u8fdb\u884c\u5c01\u88c5\uff0c\u8fd9\u4e5f\u5c06\u81ea\u52a8\u4f7f\u6240\u6709\u5e94\u7528\u7a0b\u5e8f\u53d7\u76ca\u3002<\/p>\n<p>Linus Torvalds \u5bf9 mseal () syscall \u63d0\u51fa\u7684\u6a21\u578b\u8868\u8fbe\u4e86\u4fdd\u7559\u610f\u89c1\uff0c\u76ee\u524d\u8fd9\u4e2a\u63d0\u6848\u5e76\u6ca1\u6709\u76f4\u63a5\u88ab\u63a5\u53d7\uff0c\u9700\u8981\u4fee\u8ba2\u624d\u80fd\u8fdb\u5316\u6210\u9002\u5408\u4e0a\u6e38\u7684\u5f62\u5f0f\u3002<\/p>\n<p>Linus \u8868\u793a\uff1a<\/p>\n<p>\u201c\u6211\u5bf9\u6dfb\u52a0\u67d0\u79cd\u2019\u9501\u5b9a\u5185\u5b58\u6620\u5c04\u2019 (lock down memory mappings) \u6a21\u578b\u6ca1\u6709\u5f02\u8bae\uff0c\u4f46\u4e8b\u5b9e\u5e76\u975e\u5982\u6b64\u3002<\/p>\n<p>\u9996\u5148\uff0c\u6700\u660e\u663e\u7684\u95ee\u9898\u662f\u63d0\u4ea4\u4fe1\u606f\u65e0\u4ef7\u503c\u3002<\/p>\n<p>\u53e6\u5916\u66f4\u6839\u672c\u7684\u95ee\u9898\u8981\u4e25\u91cd\u5f97\u591a \u2014\u2014\"ON_BEHALF_OF_KERNEL\" \u548c \"ON_BEHALF_OF_USERSPACE\" \u6574\u4f53\u5b8c\u5168\u4e0d\u5408\u903b\u8f91\uff0c\u6574\u4f53\u6982\u5ff5\u90fd\u9700\u8981\u91cd\u5199\u3002\u56e0\u4e3a\u8fd9\u5c31\u662f remap_file_pages () \u201c\u5b57\u9762\u4e0a\u201d \u7684\u7cfb\u7edf\u8c03\u7528\u5b9a\u4e49\u3002\u201d<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u636e\u4ecb\u7ecd\uff0c \u8c37\u6b4c\u8fd9\u4e2a\u72ec\u7acb\u4e8e\u67b6\u6784\u7684\u7cfb\u7edf\u8c03\u7528\u6700\u521d\u7531 Chrome OS \u4e0a\u7684 Chrome \u6d4f\u89c8\u5668\u4f7f\u7528\u3002\u5f53\u65f6 Gli [&hellip;]<\/p>\n","protected":false},"author":668,"featured_media":249371,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[21],"tags":[],"class_list":["post-285735","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"acf":[],"_links":{"self":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/285735","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/users\/668"}],"replies":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/comments?post=285735"}],"version-history":[{"count":6,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/285735\/revisions"}],"predecessor-version":[{"id":286304,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/285735\/revisions\/286304"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media\/249371"}],"wp:attachment":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media?parent=285735"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/categories?post=285735"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/tags?post=285735"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}