{
   "CVE_data_meta" : {
      "ASSIGNER" : "cve@mitre.org",
      "ID" : "CVE-2015-4170",
      "STATE" : "PUBLIC"
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   "affects" : {
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   "data_version" : "4.0",
   "description" : {
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            "lang" : "eng",
            "value" : "Race condition in the ldsem_cmpxchg function in drivers/tty/tty_ldsem.c in the Linux kernel before 3.13-rc4-next-20131218 allows local users to cause a denial of service (ldsem_down_read and ldsem_down_write deadlock) by establishing a new tty thread during shutdown of a previous tty thread."
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      "reference_data" : [
         {
            "name" : "[oss-security] 20150526 CVE request: vulnerability in the kernel tty subsystem.",
            "refsource" : "MLIST",
            "url" : "http://www.openwall.com/lists/oss-security/2015/05/26/1"
         },
         {
            "name" : "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cf872776fc84128bb779ce2b83a37c884c3203ae",
            "refsource" : "CONFIRM",
            "url" : "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cf872776fc84128bb779ce2b83a37c884c3203ae"
         },
         {
            "name" : "https://bugzilla.redhat.com/show_bug.cgi?id=1218879",
            "refsource" : "CONFIRM",
            "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1218879"
         },
         {
            "name" : "https://github.com/torvalds/linux/commit/cf872776fc84128bb779ce2b83a37c884c3203ae",
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            "url" : "https://github.com/torvalds/linux/commit/cf872776fc84128bb779ce2b83a37c884c3203ae"
         },
         {
            "name" : "https://www.kernel.org/pub/linux/kernel/next/patch-v3.13-rc4-next-20131218.xz",
            "refsource" : "CONFIRM",
            "url" : "https://www.kernel.org/pub/linux/kernel/next/patch-v3.13-rc4-next-20131218.xz"
         },
         {
            "name" : "http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html",
            "refsource" : "CONFIRM",
            "url" : "http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html"
         },
         {
            "name" : "RHSA-2016:1395",
            "refsource" : "REDHAT",
            "url" : "https://access.redhat.com/errata/RHSA-2016:1395"
         },
         {
            "name" : "74820",
            "refsource" : "BID",
            "url" : "http://www.securityfocus.com/bid/74820"
         }
      ]
   }
}