{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsched/membarrier: reduce the ability to hammer on sys_membarrier\n\nOn some systems, sys_membarrier can be very expensive, causing overall\nslowdowns for everything.  So put a lock on the path in order to\nserialize the accesses to prevent the ability for this to be called at\ntoo high of a frequency and saturate the machine."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "kernel/sched/membarrier.c"
               ],
               "versions": [
                  {
                     "version": "22e4ebb97582",
                     "lessThan": "3cd139875e9a",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "22e4ebb97582",
                     "lessThan": "2441a64070b8",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "22e4ebb97582",
                     "lessThan": "db896bbe4a9c",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "22e4ebb97582",
                     "lessThan": "50fb4e17df31",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "22e4ebb97582",
                     "lessThan": "24ec7504a08a",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "22e4ebb97582",
                     "lessThan": "b6a2a9cbb675",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "22e4ebb97582",
                     "lessThan": "c5b2063c65d0",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "22e4ebb97582",
                     "lessThan": "944d5fe50f3f",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "kernel/sched/membarrier.c"
               ],
               "versions": [
                  {
                     "version": "4.14",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "4.14",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.19.307",
                     "lessThanOrEqual": "4.19.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.4.269",
                     "lessThanOrEqual": "5.4.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.10.210",
                     "lessThanOrEqual": "5.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.15.149",
                     "lessThanOrEqual": "5.15.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.1.79",
                     "lessThanOrEqual": "6.1.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.6.18",
                     "lessThanOrEqual": "6.6.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.7.6",
                     "lessThanOrEqual": "6.7.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.8",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/3cd139875e9a7688b3fc715264032620812a5fa3"
            },
            {
               "url": "https://git.kernel.org/stable/c/2441a64070b85c14eecc3728cc87e883f953f265"
            },
            {
               "url": "https://git.kernel.org/stable/c/db896bbe4a9c67cee377e5f6a743350d3ae4acf6"
            },
            {
               "url": "https://git.kernel.org/stable/c/50fb4e17df319bb33be6f14e2a856950c1577dee"
            },
            {
               "url": "https://git.kernel.org/stable/c/24ec7504a08a67247fbe798d1de995208a8c128a"
            },
            {
               "url": "https://git.kernel.org/stable/c/b6a2a9cbb67545c825ec95f06adb7ff300a2ad71"
            },
            {
               "url": "https://git.kernel.org/stable/c/c5b2063c65d05e79fad8029324581d86cfba7eea"
            },
            {
               "url": "https://git.kernel.org/stable/c/944d5fe50f3f03daacfea16300e656a1691c4a23"
            }
         ],
         "title": "sched/membarrier: reduce the ability to hammer on sys_membarrier",
         "x_generator": {
            "engine": "bippy-a5840b7849dd"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-26602",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}