{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: mcast: remove one synchronize_net() barrier in ipv6_mc_down()\n\nAs discussed in the past (commit 2d3916f31891 (\"ipv6: fix skb drops\nin igmp6_event_query() and igmp6_event_report()\")) I think the\nsynchronize_net() call in ipv6_mc_down() is not needed.\n\nUnder load, synchronize_net() can last between 200 usec and 5 ms.\n\nKASAN seems to agree as well."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "net/ipv6/mcast.c"
               ],
               "versions": [
                  {
                     "version": "f185de28d9ae",
                     "lessThan": "9d159d6637cc",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "f185de28d9ae",
                     "lessThan": "a03ede2282eb",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "f185de28d9ae",
                     "lessThan": "26d4bac55750",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "f185de28d9ae",
                     "lessThan": "7eb06ee59211",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "f185de28d9ae",
                     "lessThan": "5da9a218340a",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "f185de28d9ae",
                     "lessThan": "17ef8efc00b3",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "net/ipv6/mcast.c"
               ],
               "versions": [
                  {
                     "version": "5.13",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "5.13",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.15.153",
                     "lessThanOrEqual": "5.15.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.1.83",
                     "lessThanOrEqual": "6.1.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.6.23",
                     "lessThanOrEqual": "6.6.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.7.11",
                     "lessThanOrEqual": "6.7.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.8.2",
                     "lessThanOrEqual": "6.8.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.9",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/9d159d6637ccce25f879d662a480541ef4ba3a50"
            },
            {
               "url": "https://git.kernel.org/stable/c/a03ede2282ebbd181bd6f5c38cbfcb5765afcd04"
            },
            {
               "url": "https://git.kernel.org/stable/c/26d4bac55750d535f1f0b8790dc26daf6089e373"
            },
            {
               "url": "https://git.kernel.org/stable/c/7eb06ee5921189812e6b4bfe7b0f1e878be16df7"
            },
            {
               "url": "https://git.kernel.org/stable/c/5da9a218340a2bc804dc4327e5804392e24a0b88"
            },
            {
               "url": "https://git.kernel.org/stable/c/17ef8efc00b34918b966388b2af0993811895a8c"
            }
         ],
         "title": "ipv6: mcast: remove one synchronize_net() barrier in ipv6_mc_down()",
         "x_generator": {
            "engine": "bippy-a5840b7849dd"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-27390",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}