{
   "CVE_data_meta" : {
      "ASSIGNER" : "cve@mitre.org",
      "ID" : "CVE-2014-4171",
      "STATE" : "PUBLIC"
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   "affects" : {
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         "vendor_data" : [
            {
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                  "product_data" : [
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                        "version" : {
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                                 "version_value" : "n/a"
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               "vendor_name" : "n/a"
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   "data_version" : "4.0",
   "description" : {
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            "lang" : "eng",
            "value" : "mm/shmem.c in the Linux kernel through 3.15.1 does not properly implement the interaction between range notification and hole punching, which allows local users to cause a denial of service (i_mutex hold) by using the mmap system call to access a hole, as demonstrated by interfering with intended shmem activity by blocking completion of (1) an MADV_REMOVE madvise call or (2) an FALLOC_FL_PUNCH_HOLE fallocate call."
         }
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   "references" : {
      "reference_data" : [
         {
            "name" : "[mm-commits] 20140617 + shmem-fix-faulting-into-a-hole-while-its-punched.patch added to -mm tree",
            "refsource" : "MLIST",
            "url" : "http://marc.info/?l=linux-mm-commits&m=140303745420549&w=2"
         },
         {
            "name" : "[oss-security] 20140618 CVE-2014-4171 - Linux kernel mm/shmem.c denial of service",
            "refsource" : "MLIST",
            "url" : "http://www.openwall.com/lists/oss-security/2014/06/18/11"
         },
         {
            "name" : "http://ozlabs.org/~akpm/mmots/broken-out/shmem-fix-faulting-into-a-hole-while-its-punched.patch",
            "refsource" : "CONFIRM",
            "url" : "http://ozlabs.org/~akpm/mmots/broken-out/shmem-fix-faulting-into-a-hole-while-its-punched.patch"
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         {
            "name" : "https://bugzilla.redhat.com/show_bug.cgi?id=1111180",
            "refsource" : "CONFIRM",
            "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1111180"
         },
         {
            "name" : "RHSA-2014:1318",
            "refsource" : "REDHAT",
            "url" : "http://rhn.redhat.com/errata/RHSA-2014-1318.html"
         },
         {
            "name" : "RHSA-2015:0102",
            "refsource" : "REDHAT",
            "url" : "http://rhn.redhat.com/errata/RHSA-2015-0102.html"
         },
         {
            "name" : "SUSE-SU-2014:1316",
            "refsource" : "SUSE",
            "url" : "http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00006.html"
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         {
            "name" : "SUSE-SU-2014:1319",
            "refsource" : "SUSE",
            "url" : "http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00007.html"
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            "name" : "USN-2334-1",
            "refsource" : "UBUNTU",
            "url" : "http://www.ubuntu.com/usn/USN-2334-1"
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         {
            "name" : "USN-2335-1",
            "refsource" : "UBUNTU",
            "url" : "http://www.ubuntu.com/usn/USN-2335-1"
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         {
            "name" : "68157",
            "refsource" : "BID",
            "url" : "http://www.securityfocus.com/bid/68157"
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         {
            "name" : "1030450",
            "refsource" : "SECTRACK",
            "url" : "http://www.securitytracker.com/id/1030450"
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         {
            "name" : "59777",
            "refsource" : "SECUNIA",
            "url" : "http://secunia.com/advisories/59777"
         },
         {
            "name" : "60564",
            "refsource" : "SECUNIA",
            "url" : "http://secunia.com/advisories/60564"
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}