{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: peak_pci: peak_pci_remove(): fix UAF\n\nWhen remove the module peek_pci, referencing 'chan' again after\nreleasing 'dev' will cause UAF.\n\nFix this by releasing 'dev' later.\n\nThe following log reveals it:\n\n[   35.961814 ] BUG: KASAN: use-after-free in peak_pci_remove+0x16f/0x270 [peak_pci]\n[   35.963414 ] Read of size 8 at addr ffff888136998ee8 by task modprobe/5537\n[   35.965513 ] Call Trace:\n[   35.965718 ]  dump_stack_lvl+0xa8/0xd1\n[   35.966028 ]  print_address_description+0x87/0x3b0\n[   35.966420 ]  kasan_report+0x172/0x1c0\n[   35.966725 ]  ? peak_pci_remove+0x16f/0x270 [peak_pci]\n[   35.967137 ]  ? trace_irq_enable_rcuidle+0x10/0x170\n[   35.967529 ]  ? peak_pci_remove+0x16f/0x270 [peak_pci]\n[   35.967945 ]  __asan_report_load8_noabort+0x14/0x20\n[   35.968346 ]  peak_pci_remove+0x16f/0x270 [peak_pci]\n[   35.968752 ]  pci_device_remove+0xa9/0x250"
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/net/can/sja1000/peak_pci.c"
               ],
               "versions": [
                  {
                     "version": "e6d9c80b7ca1",
                     "lessThan": "1c616528ba4a",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "e6d9c80b7ca1",
                     "lessThan": "447d44cd2f67",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "e6d9c80b7ca1",
                     "lessThan": "34914971bb32",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "e6d9c80b7ca1",
                     "lessThan": "adbda14730aa",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "e6d9c80b7ca1",
                     "lessThan": "1248582e47a9",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "e6d9c80b7ca1",
                     "lessThan": "28f28e4bc3a5",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "e6d9c80b7ca1",
                     "lessThan": "0e5afdc2315b",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "e6d9c80b7ca1",
                     "lessThan": "949fe9b35570",
                     "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/net/can/sja1000/peak_pci.c"
               ],
               "versions": [
                  {
                     "version": "3.4",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "3.4",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.4.290",
                     "lessThanOrEqual": "4.4.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.9.288",
                     "lessThanOrEqual": "4.9.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.14.253",
                     "lessThanOrEqual": "4.14.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.19.214",
                     "lessThanOrEqual": "4.19.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.4.156",
                     "lessThanOrEqual": "5.4.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.10.76",
                     "lessThanOrEqual": "5.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.14.15",
                     "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/1c616528ba4aeb1125a06b407572ab7b56acae38"
            },
            {
               "url": "https://git.kernel.org/stable/c/447d44cd2f67a20b596ede3ca3cd67086dfd9ca9"
            },
            {
               "url": "https://git.kernel.org/stable/c/34914971bb3244db4ce2be44e9438a9b30c56250"
            },
            {
               "url": "https://git.kernel.org/stable/c/adbda14730aacce41c0d3596415aa39ad63eafd9"
            },
            {
               "url": "https://git.kernel.org/stable/c/1248582e47a9f7ce0ecd156c39fc61f8b6aa3699"
            },
            {
               "url": "https://git.kernel.org/stable/c/28f28e4bc3a5e0051faa963f10b778ab38c1db69"
            },
            {
               "url": "https://git.kernel.org/stable/c/0e5afdc2315b0737edcf55bede4ee1640d2d464d"
            },
            {
               "url": "https://git.kernel.org/stable/c/949fe9b35570361bc6ee2652f89a0561b26eec98"
            }
         ],
         "title": "can: peak_pci: peak_pci_remove(): fix UAF",
         "x_generator": {
            "engine": "bippy-a5840b7849dd"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2021-47456",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}