{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: greybus: uart: fix tty use after free\n\nUser space can hold a tty open indefinitely and tty drivers must not\nrelease the underlying structures until the last user is gone.\n\nSwitch to using the tty-port reference counter to manage the life time\nof the greybus tty state to avoid use after free after a disconnect."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/staging/greybus/uart.c"
               ],
               "versions": [
                  {
                     "version": "a18e15175708",
                     "lessThan": "92b67aaafb7c",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "a18e15175708",
                     "lessThan": "64062fcaca88",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "a18e15175708",
                     "lessThan": "a5cfd51f6348",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "a18e15175708",
                     "lessThan": "4dc56951a8d9",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "a18e15175708",
                     "lessThan": "b9e697e60ce9",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "a18e15175708",
                     "lessThan": "9872ff6fdce8",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "a18e15175708",
                     "lessThan": "92dc0b1f46e1",
                     "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/staging/greybus/uart.c"
               ],
               "versions": [
                  {
                     "version": "4.9",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "4.9",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.9.285",
                     "lessThanOrEqual": "4.9.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.14.249",
                     "lessThanOrEqual": "4.14.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.19.209",
                     "lessThanOrEqual": "4.19.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.4.150",
                     "lessThanOrEqual": "5.4.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.10.70",
                     "lessThanOrEqual": "5.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.14.9",
                     "lessThanOrEqual": "5.14.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.15",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/92b67aaafb7c449db9f0c3dcabc0ff967cb3a42d"
            },
            {
               "url": "https://git.kernel.org/stable/c/64062fcaca8872f063ec9da011e7bf30470be33f"
            },
            {
               "url": "https://git.kernel.org/stable/c/a5cfd51f6348e8fd7531461366946039c29c7e69"
            },
            {
               "url": "https://git.kernel.org/stable/c/4dc56951a8d9d61d364d346c61a5f1d70b4f5e14"
            },
            {
               "url": "https://git.kernel.org/stable/c/b9e697e60ce9890e9258a73eb061288e7d68e5e6"
            },
            {
               "url": "https://git.kernel.org/stable/c/9872ff6fdce8b229f01993b611b5d1719cb70ff1"
            },
            {
               "url": "https://git.kernel.org/stable/c/92dc0b1f46e12cfabd28d709bb34f7a39431b44f"
            }
         ],
         "title": "staging: greybus: uart: fix tty use after free",
         "x_generator": {
            "engine": "bippy-a5840b7849dd"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2021-47358",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}