{
   "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: sr: fix missing sk_buff release in seg6_input_core\n\nThe seg6_input() function is responsible for adding the SRH into a\npacket, delegating the operation to the seg6_input_core(). This function\nuses the skb_cow_head() to ensure that there is sufficient headroom in\nthe sk_buff for accommodating the link-layer header.\nIn the event that the skb_cow_header() function fails, the\nseg6_input_core() catches the error but it does not release the sk_buff,\nwhich will result in a memory leak.\n\nThis issue was introduced in commit af3b5158b89d (\"ipv6: sr: fix BUG due\nto headroom too small after SRH push\") and persists even after commit\n7a3f5b0de364 (\"netfilter: add netfilter hooks to SRv6 data plane\"),\nwhere the entire seg6_input() code was refactored to deal with netfilter\nhooks.\n\nThe proposed patch addresses the identified memory leak by requiring the\nseg6_input_core() function to release the sk_buff in the event that\nskb_cow_head() fails."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "net/ipv6/seg6_iptunnel.c"
               ],
               "versions": [
                  {
                     "version": "af3b5158b89d",
                     "lessThan": "e8688218e381",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "af3b5158b89d",
                     "lessThan": "8f1fc3b86eae",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "af3b5158b89d",
                     "lessThan": "f4df8c7670a7",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "af3b5158b89d",
                     "lessThan": "f5fec1588642",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "af3b5158b89d",
                     "lessThan": "5447f9708d9e",
                     "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/seg6_iptunnel.c"
               ],
               "versions": [
                  {
                     "version": "4.12",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "4.12",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.15.161",
                     "lessThanOrEqual": "5.15.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.1.93",
                     "lessThanOrEqual": "6.1.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.6.33",
                     "lessThanOrEqual": "6.6.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.9.4",
                     "lessThanOrEqual": "6.9.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.10",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/e8688218e38111ace457509d8f0cad75f79c1a7a"
            },
            {
               "url": "https://git.kernel.org/stable/c/8f1fc3b86eaea70be6abcae2e9aa7e7b99453864"
            },
            {
               "url": "https://git.kernel.org/stable/c/f4df8c7670a73752201cbde215254598efdf6ce8"
            },
            {
               "url": "https://git.kernel.org/stable/c/f5fec1588642e415a3d72e02140160661b303940"
            },
            {
               "url": "https://git.kernel.org/stable/c/5447f9708d9e4c17a647b16a9cb29e9e02820bd9"
            }
         ],
         "title": "ipv6: sr: fix missing sk_buff release in seg6_input_core",
         "x_generator": {
            "engine": "bippy-c9c4e1df01b2"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-39490",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}