{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: pm: only decrement add_addr_accepted for MPJ req\n\nAdding the following warning ...\n\n  WARN_ON_ONCE(msk->pm.add_addr_accepted == 0)\n\n... before decrementing the add_addr_accepted counter helped to find a\nbug when running the \"remove single subflow\" subtest from the\nmptcp_join.sh selftest.\n\nRemoving a 'subflow' endpoint will first trigger a RM_ADDR, then the\nsubflow closure. Before this patch, and upon the reception of the\nRM_ADDR, the other peer will then try to decrement this\nadd_addr_accepted. That's not correct because the attached subflows have\nnot been created upon the reception of an ADD_ADDR.\n\nA way to solve that is to decrement the counter only if the attached\nsubflow was an MP_JOIN to a remote id that was not 0, and initiated by\nthe host receiving the RM_ADDR."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "net/mptcp/pm_netlink.c"
               ],
               "versions": [
                  {
                     "version": "d0876b2284cf",
                     "lessThan": "35b31f5549ed",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "d0876b2284cf",
                     "lessThan": "85b866e4c4e6",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "d0876b2284cf",
                     "lessThan": "d20bf2c96d7f",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "d0876b2284cf",
                     "lessThan": "2060f1efab37",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "d0876b2284cf",
                     "lessThan": "1c1f72137598",
                     "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/mptcp/pm_netlink.c"
               ],
               "versions": [
                  {
                     "version": "5.10",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "5.10",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.15.167",
                     "lessThanOrEqual": "5.15.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.1.107",
                     "lessThanOrEqual": "6.1.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.6.48",
                     "lessThanOrEqual": "6.6.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.10.7",
                     "lessThanOrEqual": "6.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.11",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/35b31f5549ede4070566b949781e83495906b43d"
            },
            {
               "url": "https://git.kernel.org/stable/c/85b866e4c4e63a1d7afb58f1e24273caad03d0b7"
            },
            {
               "url": "https://git.kernel.org/stable/c/d20bf2c96d7ffd171299b32f562f70e5bf5dc608"
            },
            {
               "url": "https://git.kernel.org/stable/c/2060f1efab370b496c4903b840844ecaff324c3c"
            },
            {
               "url": "https://git.kernel.org/stable/c/1c1f721375989579e46741f59523e39ec9b2a9bd"
            }
         ],
         "title": "mptcp: pm: only decrement add_addr_accepted for MPJ req",
         "x_generator": {
            "engine": "bippy-c9c4e1df01b2"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-45009",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}