{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: bttv: fix use after free error due to btv->timeout timer\n\nThere may be some a race condition between timer function\nbttv_irq_timeout and bttv_remove. The timer is setup in\nprobe and there is no timer_delete operation in remove\nfunction. When it hit kfree btv, the function might still be\ninvoked, which will cause use after free bug.\n\nThis bug is found by static analysis, it may be false positive.\n\nFix it by adding del_timer_sync invoking to the remove function.\n\ncpu0                cpu1\n                  bttv_probe\n                    ->timer_setup\n                      ->bttv_set_dma\n                        ->mod_timer;\nbttv_remove\n  ->kfree(btv);\n                  ->bttv_irq_timeout\n                    ->USE btv"
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/media/pci/bt8xx/bttv-driver.c"
               ],
               "versions": [
                  {
                     "version": "162e6376ac58",
                     "lessThan": "bbc3b8dd2cb7",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "162e6376ac58",
                     "lessThan": "b35fdade92c5",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "162e6376ac58",
                     "lessThan": "2f3d9198cdae",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "162e6376ac58",
                     "lessThan": "51c94256a83f",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "162e6376ac58",
                     "lessThan": "20568d06f606",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "162e6376ac58",
                     "lessThan": "1871014d6ef4",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "162e6376ac58",
                     "lessThan": "847599fffa52",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "162e6376ac58",
                     "lessThan": "bd5b50b329e8",
                     "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/media/pci/bt8xx/bttv-driver.c"
               ],
               "versions": [
                  {
                     "version": "4.15",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "4.15",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.19.299",
                     "lessThanOrEqual": "4.19.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.4.261",
                     "lessThanOrEqual": "5.4.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.10.201",
                     "lessThanOrEqual": "5.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.15.139",
                     "lessThanOrEqual": "5.15.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.1.63",
                     "lessThanOrEqual": "6.1.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.5.12",
                     "lessThanOrEqual": "6.5.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.6.2",
                     "lessThanOrEqual": "6.6.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.7",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/bbc3b8dd2cb7817e703f112d988e4f4728f0f2a9"
            },
            {
               "url": "https://git.kernel.org/stable/c/b35fdade92c5058a5e727e233fe263b828de2c9a"
            },
            {
               "url": "https://git.kernel.org/stable/c/2f3d9198cdae1cb079ec8652f4defacd481eab2b"
            },
            {
               "url": "https://git.kernel.org/stable/c/51c94256a83fe4e17406c66ff3e1ad7d242d8574"
            },
            {
               "url": "https://git.kernel.org/stable/c/20568d06f6069cb835e05eed432edf962645d226"
            },
            {
               "url": "https://git.kernel.org/stable/c/1871014d6ef4812ad11ef7d838d73ce09d632267"
            },
            {
               "url": "https://git.kernel.org/stable/c/847599fffa528b2cdec4e21b6bf7586dad982132"
            },
            {
               "url": "https://git.kernel.org/stable/c/bd5b50b329e850d467e7bcc07b2b6bde3752fbda"
            }
         ],
         "title": "media: bttv: fix use after free error due to btv->timeout timer",
         "x_generator": {
            "engine": "bippy-a5840b7849dd"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2023-52847",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}