{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: pn533: Add poll mod list filling check\n\nIn case of im_protocols value is 1 and tm_protocols value is 0 this\ncombination successfully passes the check\n'if (!im_protocols && !tm_protocols)' in the nfc_start_poll().\nBut then after pn533_poll_create_mod_list() call in pn533_start_poll()\npoll mod list will remain empty and dev->poll_mod_count will remain 0\nwhich lead to division by zero.\n\nNormally no im protocol has value 1 in the mask, so this combination is\nnot expected by driver. But these protocol values actually come from\nuserspace via Netlink interface (NFC_CMD_START_POLL operation). So a\nbroken or malicious program may pass a message containing a \"bad\"\ncombination of protocol parameter values so that dev->poll_mod_count\nis not incremented inside pn533_poll_create_mod_list(), thus leading\nto division by zero.\nCall trace looks like:\nnfc_genl_start_poll()\n  nfc_start_poll()\n    ->start_poll()\n    pn533_start_poll()\n\nAdd poll mod list filling check.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/nfc/pn533/pn533.c"
               ],
               "versions": [
                  {
                     "version": "dfccd0f58044",
                     "lessThan": "c5e05237444f",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "dfccd0f58044",
                     "lessThan": "8ddaea033de0",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "dfccd0f58044",
                     "lessThan": "7535db0624a2",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "dfccd0f58044",
                     "lessThan": "7ecd3dd4f8ee",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "dfccd0f58044",
                     "lessThan": "56ad559cf6d8",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "dfccd0f58044",
                     "lessThan": "64513d0e546a",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "dfccd0f58044",
                     "lessThan": "febccb39255f",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/nfc/pn533/pn533.c"
               ],
               "versions": [
                  {
                     "version": "3.12",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "3.12",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.4.283",
                     "lessThanOrEqual": "5.4.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.10.225",
                     "lessThanOrEqual": "5.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.15.166",
                     "lessThanOrEqual": "5.15.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.1.108",
                     "lessThanOrEqual": "6.1.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.6.49",
                     "lessThanOrEqual": "6.6.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.10.8",
                     "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/c5e05237444f32f6cfe5d907603a232c77a08b31"
            },
            {
               "url": "https://git.kernel.org/stable/c/8ddaea033de051ed61b39f6b69ad54a411172b33"
            },
            {
               "url": "https://git.kernel.org/stable/c/7535db0624a2dede374c42040808ad9a9101d723"
            },
            {
               "url": "https://git.kernel.org/stable/c/7ecd3dd4f8eecd3309432156ccfe24768e009ec4"
            },
            {
               "url": "https://git.kernel.org/stable/c/56ad559cf6d87f250a8d203b555dfc3716afa946"
            },
            {
               "url": "https://git.kernel.org/stable/c/64513d0e546a1f19e390f7e5eba3872bfcbdacf5"
            },
            {
               "url": "https://git.kernel.org/stable/c/febccb39255f9df35527b88c953b2e0deae50e53"
            }
         ],
         "title": "nfc: pn533: Add poll mod list filling check",
         "x_generator": {
            "engine": "bippy-c9c4e1df01b2"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-46676",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}