{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsctp: set sk_state back to CLOSED if autobind fails in sctp_listen_start\n\nIn sctp_listen_start() invoked by sctp_inet_listen(), it should set the\nsk_state back to CLOSED if sctp_autobind() fails due to whatever reason.\n\nOtherwise, next time when calling sctp_inet_listen(), if sctp_sk(sk)->reuse\nis already set via setsockopt(SCTP_REUSE_PORT), sctp_sk(sk)->bind_hash will\nbe dereferenced as sk_state is LISTENING, which causes a crash as bind_hash\nis NULL.\n\n  KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]\n  RIP: 0010:sctp_inet_listen+0x7f0/0xa20 net/sctp/socket.c:8617\n  Call Trace:\n   <TASK>\n   __sys_listen_socket net/socket.c:1883 [inline]\n   __sys_listen+0x1b7/0x230 net/socket.c:1894\n   __do_sys_listen net/socket.c:1902 [inline]"
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "net/sctp/socket.c"
               ],
               "versions": [
                  {
                     "version": "5e8f3f703ae4",
                     "lessThan": "dd70c8a89ef9",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "5e8f3f703ae4",
                     "lessThan": "e7a8442195e8",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "5e8f3f703ae4",
                     "lessThan": "9230a59eda08",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "5e8f3f703ae4",
                     "lessThan": "7f64cb5b4d8c",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "5e8f3f703ae4",
                     "lessThan": "f032e1dac30b",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "5e8f3f703ae4",
                     "lessThan": "e914bf68dab8",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "5e8f3f703ae4",
                     "lessThan": "8beee4d8dee7",
                     "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/sctp/socket.c"
               ],
               "versions": [
                  {
                     "version": "2.6.30",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "2.6.30",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.10.227",
                     "lessThanOrEqual": "5.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.15.168",
                     "lessThanOrEqual": "5.15.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.1.113",
                     "lessThanOrEqual": "6.1.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.6.55",
                     "lessThanOrEqual": "6.6.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.10.14",
                     "lessThanOrEqual": "6.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.11.3",
                     "lessThanOrEqual": "6.11.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.12-rc2",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/dd70c8a89ef99c3d53127fe19e51ef47c3f860fa"
            },
            {
               "url": "https://git.kernel.org/stable/c/e7a8442195e8ebd97df467ce4742980ab57edcce"
            },
            {
               "url": "https://git.kernel.org/stable/c/9230a59eda0878d7ecaa901d876aec76f57bd455"
            },
            {
               "url": "https://git.kernel.org/stable/c/7f64cb5b4d8c872296eda0fdce3bcf099eec7aa7"
            },
            {
               "url": "https://git.kernel.org/stable/c/f032e1dac30b3376c7d6026fb01a8c403c47a80d"
            },
            {
               "url": "https://git.kernel.org/stable/c/e914bf68dab88815a7ae7b7a3a5e8913c8ff14a5"
            },
            {
               "url": "https://git.kernel.org/stable/c/8beee4d8dee76b67c75dc91fd8185d91e845c160"
            }
         ],
         "title": "sctp: set sk_state back to CLOSED if autobind fails in sctp_listen_start",
         "x_generator": {
            "engine": "bippy-c9c4e1df01b2"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-49944",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}