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RedHat Linux
RedHat Linux
added 2009/02/10 3:50 p.m.8 views

kernel: soft lockup occurs when network load is very high

The qdiscrun function in net/sched/schgeneric.c in the Linux kernel before 2.6.25 on SMP machines allows local users to cause a denial of service soft lockup by sending a large amount of network traffic, as demonstrated by multiple simultaneous invocations of the Netperf benchmark application in...

4.9CVSS5.8AI score0.00743EPSS
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seebug.org
seebug.org
added 2008/12/26 12:00 a.m.48 views

Linux Kernel qdisc_run()本地拒绝服务漏洞

BUGTRAQ ID: 32985 CVECAN ID: CVE-2008-5713 Linux Kernel是开放源码操作系统Linux所使用的内核。 在多核(如16核)SMP机器上,如果并发的高流量的网络负载,就会导致内核中出现软锁定。 锁定出现在net/sched/schgeneric.c的84行的qdiscrun函数中。由于驱动持续发送报文并返回NETDEVTXOK,qdiscrun就无法退出qdiscrestart循环。尽管这可以提高吞吐能力,但某些应用程序可能被迟滞大约10秒钟。 Linux kernel 2.6.x Linux -----...

4.9CVSS0.2AI score0.00743EPSS
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