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DirtyFrag Linux内核Dirty家族漏洞三连

2026-07-01 15:18:16

DirtyFrag Linux内核Dirty家族漏洞三连

DirtyFrag Linux内核Dirty家族漏洞三连

2026年4月至5月，Linux内核连续披露三个高危本地提权漏洞（DirtyFrag），构成Dirty家族'漏洞三连'。CVE-2026-43284（xfrm-ESP）与CVE-2026-43500（RxRPC）通过链式组合，利用零拷贝+加密子系统绕过内核权限模型，实现本地提权至root。CVE-2026-46300（Fragnesia）为补丁衍生漏洞。CVSS评分9.8，影响Linux 5.x~6.x全系列内核。CISA已将Copy Fail加入KEV目录。请立即更新内核补丁！

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请求信息 : 2026-07-03 00:59:03 HTTP/2.0 GET : https://f.mffb.com.cn/a/497095.html
运行时间 : 0.282483s [ 吞吐率：3.54req/s ] 内存消耗：4,715.38kb 文件加载：140
缓存信息 : 0 reads,0 writes
会话信息 : SESSION_ID=6f20174b304d3865d1a52c38081825eb

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CONNECT:[ UseTime:0.000502s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000745s ]
SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000306s ]
SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000243s ]
SHOW FULL COLUMNS FROM `set` [ RunTime:0.000511s ]
SELECT * FROM `set` [ RunTime:0.000198s ]
SHOW FULL COLUMNS FROM `article` [ RunTime:0.000540s ]
SELECT * FROM `article` WHERE `id` = 497095 LIMIT 1 [ RunTime:0.009253s ]
UPDATE `article` SET `lasttime` = 1783011543 WHERE `id` = 497095 [ RunTime:0.016029s ]
SELECT * FROM `fenlei` WHERE `id` = 67 LIMIT 1 [ RunTime:0.000302s ]
SELECT * FROM `article` WHERE `id` < 497095 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000633s ]
SELECT * FROM `article` WHERE `id` > 497095 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000457s ]
SELECT * FROM `article` WHERE `id` < 497095 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.065457s ]
SELECT * FROM `article` WHERE `id` < 497095 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.080770s ]
SELECT * FROM `article` WHERE `id` < 497095 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.036776s ]

0.285068s

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