{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nicmp: change the order of rate limits\n\nICMP messages are ratelimited :\n\nAfter the blamed commits, the two rate limiters are applied in this order:\n\n1) host wide ratelimit (icmp_global_allow())\n\n2) Per destination ratelimit (inetpeer based)\n\nIn order to avoid side-channels attacks, we need to apply\nthe per destination check first.\n\nThis patch makes the following change :\n\n1) icmp_global_allow() checks if the host wide limit is reached.\n   But credits are not yet consumed. This is deferred to 3)\n\n2) The per destination limit is checked/updated.\n   This might add a new node in inetpeer tree.\n\n3) icmp_global_consume() consumes tokens if prior operations succeeded.\n\nThis means that host wide ratelimit is still effective\nin keeping inetpeer tree small even under DDOS.\n\nAs a bonus, I removed icmp_global.lock as the fast path\ncan use a lock-free operation."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "include/net/ip.h",
                  "net/ipv4/icmp.c",
                  "net/ipv6/icmp.c"
               ],
               "versions": [
                  {
                     "version": "4cdf507d5452",
                     "lessThan": "997ba8889611",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "4cdf507d5452",
                     "lessThan": "662ec52260cc",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "4cdf507d5452",
                     "lessThan": "a7722921adb0",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "4cdf507d5452",
                     "lessThan": "483397b4ba28",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "4cdf507d5452",
                     "lessThan": "8c2bd38b95f7",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "include/net/ip.h",
                  "net/ipv4/icmp.c",
                  "net/ipv6/icmp.c"
               ],
               "versions": [
                  {
                     "version": "3.18",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "3.18",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.1.113",
                     "lessThanOrEqual": "6.1.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.6.54",
                     "lessThanOrEqual": "6.6.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.10.13",
                     "lessThanOrEqual": "6.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.11.2",
                     "lessThanOrEqual": "6.11.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.12-rc1",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/997ba8889611891f91e8ad83583466aeab6239a3"
            },
            {
               "url": "https://git.kernel.org/stable/c/662ec52260cc07b9ae53ecd3925183c29d34288b"
            },
            {
               "url": "https://git.kernel.org/stable/c/a7722921adb046e3836eb84372241f32584bdb07"
            },
            {
               "url": "https://git.kernel.org/stable/c/483397b4ba280813e4a9c161a0a85172ddb43d19"
            },
            {
               "url": "https://git.kernel.org/stable/c/8c2bd38b95f75f3d2a08c93e35303e26d480d24e"
            }
         ],
         "title": "icmp: change the order of rate limits",
         "x_generator": {
            "engine": "bippy-c9c4e1df01b2"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-47678",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}