CVE-2022-49010 (GCVE-0-2022-49010)

Vulnerability from cvelistv5 – Published: 2024-10-21 20:06 – Updated: 2026-05-11 18:51
VLAI
Title
hwmon: (coretemp) Check for null before removing sysfs attrs
Summary
In the Linux kernel, the following vulnerability has been resolved: hwmon: (coretemp) Check for null before removing sysfs attrs If coretemp_add_core() gets an error then pdata->core_data[indx] is already NULL and has been kfreed. Don't pass that to sysfs_remove_group() as that will crash in sysfs_remove_group(). [Shortened for readability] [91854.020159] sysfs: cannot create duplicate filename '/devices/platform/coretemp.0/hwmon/hwmon2/temp20_label' <cpu offline> [91855.126115] BUG: kernel NULL pointer dereference, address: 0000000000000188 [91855.165103] #PF: supervisor read access in kernel mode [91855.194506] #PF: error_code(0x0000) - not-present page [91855.224445] PGD 0 P4D 0 [91855.238508] Oops: 0000 [#1] PREEMPT SMP PTI ... [91855.342716] RIP: 0010:sysfs_remove_group+0xc/0x80 ... [91855.796571] Call Trace: [91855.810524] coretemp_cpu_offline+0x12b/0x1dd [coretemp] [91855.841738] ? coretemp_cpu_online+0x180/0x180 [coretemp] [91855.871107] cpuhp_invoke_callback+0x105/0x4b0 [91855.893432] cpuhp_thread_fun+0x8e/0x150 ... Fix this by checking for NULL first.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-10-22 13:13 UTC
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6641 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 199e0de7f5df31a4fc485d4aaaf8a07718252ace , < fb503d077ff7b43913503eaf72995d1239028b99 (git)
Affected: 199e0de7f5df31a4fc485d4aaaf8a07718252ace , < 070d5ea4a0592a37ad96ce7f7b6b024f90bb009f (git)
Affected: 199e0de7f5df31a4fc485d4aaaf8a07718252ace , < 280110db1a7d62ad635b103bafc3ae96e8bef75c (git)
Affected: 199e0de7f5df31a4fc485d4aaaf8a07718252ace , < 89eecabe6a47403237f45aafd7d24f93cb973653 (git)
Affected: 199e0de7f5df31a4fc485d4aaaf8a07718252ace , < f06e0cd01eab954bd5f2190c9faa79bb5357e05b (git)
Affected: 199e0de7f5df31a4fc485d4aaaf8a07718252ace , < 7692700ac818866d138a8de555130a6e70e6ac16 (git)
Affected: 199e0de7f5df31a4fc485d4aaaf8a07718252ace , < ae6c8b6e5d5628df1c475c0a8fca1465e205c95b (git)
Affected: 199e0de7f5df31a4fc485d4aaaf8a07718252ace , < a89ff5f5cc64b9fe7a992cf56988fd36f56ca82a (git)
guessed Create a notification for this product.
Linux Linux Affected: 3.0
Unaffected: 0 , < 3.0 (semver)
Unaffected: 4.9.335 , ≤ 4.9.* (semver)
Unaffected: 4.14.301 , ≤ 4.14.* (semver)
Unaffected: 4.19.268 , ≤ 4.19.* (semver)
Unaffected: 5.4.226 , ≤ 5.4.* (semver)
Unaffected: 5.10.158 , ≤ 5.10.* (semver)
Unaffected: 5.15.82 , ≤ 5.15.* (semver)
Unaffected: 6.0.12 , ≤ 6.0.* (semver)
Unaffected: 6.1 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2022-49010",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-10-22T13:13:58.658832Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-10-22T13:18:38.960Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/hwmon/coretemp.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "fb503d077ff7b43913503eaf72995d1239028b99",
              "status": "affected",
              "version": "199e0de7f5df31a4fc485d4aaaf8a07718252ace",
              "versionType": "git"
            },
            {
              "lessThan": "070d5ea4a0592a37ad96ce7f7b6b024f90bb009f",
              "status": "affected",
              "version": "199e0de7f5df31a4fc485d4aaaf8a07718252ace",
              "versionType": "git"
            },
            {
              "lessThan": "280110db1a7d62ad635b103bafc3ae96e8bef75c",
              "status": "affected",
              "version": "199e0de7f5df31a4fc485d4aaaf8a07718252ace",
              "versionType": "git"
            },
            {
              "lessThan": "89eecabe6a47403237f45aafd7d24f93cb973653",
              "status": "affected",
              "version": "199e0de7f5df31a4fc485d4aaaf8a07718252ace",
              "versionType": "git"
            },
            {
              "lessThan": "f06e0cd01eab954bd5f2190c9faa79bb5357e05b",
              "status": "affected",
              "version": "199e0de7f5df31a4fc485d4aaaf8a07718252ace",
              "versionType": "git"
            },
            {
              "lessThan": "7692700ac818866d138a8de555130a6e70e6ac16",
              "status": "affected",
              "version": "199e0de7f5df31a4fc485d4aaaf8a07718252ace",
              "versionType": "git"
            },
            {
              "lessThan": "ae6c8b6e5d5628df1c475c0a8fca1465e205c95b",
              "status": "affected",
              "version": "199e0de7f5df31a4fc485d4aaaf8a07718252ace",
              "versionType": "git"
            },
            {
              "lessThan": "a89ff5f5cc64b9fe7a992cf56988fd36f56ca82a",
              "status": "affected",
              "version": "199e0de7f5df31a4fc485d4aaaf8a07718252ace",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/hwmon/coretemp.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.0"
            },
            {
              "lessThan": "3.0",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.9.*",
              "status": "unaffected",
              "version": "4.9.335",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.301",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.268",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.226",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.158",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.82",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.12",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.9.335",
                  "versionStartIncluding": "3.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.14.301",
                  "versionStartIncluding": "3.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.268",
                  "versionStartIncluding": "3.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.226",
                  "versionStartIncluding": "3.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.158",
                  "versionStartIncluding": "3.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.82",
                  "versionStartIncluding": "3.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0.12",
                  "versionStartIncluding": "3.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1",
                  "versionStartIncluding": "3.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (coretemp) Check for null before removing sysfs attrs\n\nIf coretemp_add_core() gets an error then pdata-\u003ecore_data[indx]\nis already NULL and has been kfreed. Don\u0027t pass that to\nsysfs_remove_group() as that will crash in sysfs_remove_group().\n\n[Shortened for readability]\n[91854.020159] sysfs: cannot create duplicate filename \u0027/devices/platform/coretemp.0/hwmon/hwmon2/temp20_label\u0027\n\u003ccpu offline\u003e\n[91855.126115] BUG: kernel NULL pointer dereference, address: 0000000000000188\n[91855.165103] #PF: supervisor read access in kernel mode\n[91855.194506] #PF: error_code(0x0000) - not-present page\n[91855.224445] PGD 0 P4D 0\n[91855.238508] Oops: 0000 [#1] PREEMPT SMP PTI\n...\n[91855.342716] RIP: 0010:sysfs_remove_group+0xc/0x80\n...\n[91855.796571] Call Trace:\n[91855.810524]  coretemp_cpu_offline+0x12b/0x1dd [coretemp]\n[91855.841738]  ? coretemp_cpu_online+0x180/0x180 [coretemp]\n[91855.871107]  cpuhp_invoke_callback+0x105/0x4b0\n[91855.893432]  cpuhp_thread_fun+0x8e/0x150\n...\n\nFix this by checking for NULL first."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T18:51:27.659Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/fb503d077ff7b43913503eaf72995d1239028b99"
        },
        {
          "url": "https://git.kernel.org/stable/c/070d5ea4a0592a37ad96ce7f7b6b024f90bb009f"
        },
        {
          "url": "https://git.kernel.org/stable/c/280110db1a7d62ad635b103bafc3ae96e8bef75c"
        },
        {
          "url": "https://git.kernel.org/stable/c/89eecabe6a47403237f45aafd7d24f93cb973653"
        },
        {
          "url": "https://git.kernel.org/stable/c/f06e0cd01eab954bd5f2190c9faa79bb5357e05b"
        },
        {
          "url": "https://git.kernel.org/stable/c/7692700ac818866d138a8de555130a6e70e6ac16"
        },
        {
          "url": "https://git.kernel.org/stable/c/ae6c8b6e5d5628df1c475c0a8fca1465e205c95b"
        },
        {
          "url": "https://git.kernel.org/stable/c/a89ff5f5cc64b9fe7a992cf56988fd36f56ca82a"
        }
      ],
      "title": "hwmon: (coretemp) Check for null before removing sysfs attrs",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49010",
    "datePublished": "2024-10-21T20:06:21.423Z",
    "dateReserved": "2024-08-22T01:27:53.644Z",
    "dateUpdated": "2026-05-11T18:51:27.659Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2022-49010",
      "date": "2026-11-12",
      "epss": "0.00236",
      "percentile": "0.14697"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "drivers/hwmon/coretemp.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThan": "fb503d077ff7b43913503eaf72995d1239028b99",
                    "status": "affected",
                    "version": "199e0de7f5df31a4fc485d4aaaf8a07718252ace",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "070d5ea4a0592a37ad96ce7f7b6b024f90bb009f",
                    "status": "affected",
                    "version": "199e0de7f5df31a4fc485d4aaaf8a07718252ace",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "280110db1a7d62ad635b103bafc3ae96e8bef75c",
                    "status": "affected",
                    "version": "199e0de7f5df31a4fc485d4aaaf8a07718252ace",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "89eecabe6a47403237f45aafd7d24f93cb973653",
                    "status": "affected",
                    "version": "199e0de7f5df31a4fc485d4aaaf8a07718252ace",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "f06e0cd01eab954bd5f2190c9faa79bb5357e05b",
                    "status": "affected",
                    "version": "199e0de7f5df31a4fc485d4aaaf8a07718252ace",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "7692700ac818866d138a8de555130a6e70e6ac16",
                    "status": "affected",
                    "version": "199e0de7f5df31a4fc485d4aaaf8a07718252ace",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "ae6c8b6e5d5628df1c475c0a8fca1465e205c95b",
                    "status": "affected",
                    "version": "199e0de7f5df31a4fc485d4aaaf8a07718252ace",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "a89ff5f5cc64b9fe7a992cf56988fd36f56ca82a",
                    "status": "affected",
                    "version": "199e0de7f5df31a4fc485d4aaaf8a07718252ace",
                    "versionType": "git"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "drivers/hwmon/coretemp.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "3.0"
                  },
                  {
                    "lessThan": "3.0",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "4.9.*",
                    "status": "unaffected",
                    "version": "4.9.335",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "4.14.*",
                    "status": "unaffected",
                    "version": "4.14.301",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "4.19.*",
                    "status": "unaffected",
                    "version": "4.19.268",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.4.*",
                    "status": "unaffected",
                    "version": "5.4.226",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.10.*",
                    "status": "unaffected",
                    "version": "5.10.158",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.15.*",
                    "status": "unaffected",
                    "version": "5.15.82",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.0.*",
                    "status": "unaffected",
                    "version": "6.0.12",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "6.1",
                    "versionType": "original_commit_for_fix"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "78A617B4-066E-4AA8-8440-08AD00E56A84",
                    "versionEndExcluding": "4.9.335",
                    "versionStartIncluding": "3.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "0EE18A3A-1E78-44D6-9FDB-B267E4819993",
                    "versionEndExcluding": "4.14.301",
                    "versionStartIncluding": "4.10",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "04705C94-71FA-46AB-AF73-B551892B0EBA",
                    "versionEndExcluding": "4.19.268",
                    "versionStartIncluding": "4.15",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "274F5087-5805-4D03-8C74-8517300658F1",
                    "versionEndExcluding": "5.4.226",
                    "versionStartIncluding": "4.20",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "D0FB1AF1-0A0B-4419-B25F-C61F17380E18",
                    "versionEndExcluding": "5.10.158",
                    "versionStartIncluding": "5.5",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "0DC20DB6-73C1-4465-B931-117BFB8EBB02",
                    "versionEndExcluding": "5.15.82",
                    "versionStartIncluding": "5.11",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "D6D56E90-F3EE-413D-B3E2-B518932F0C7D",
                    "versionEndExcluding": "6.0.12",
                    "versionStartIncluding": "5.16",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*",
                    "matchCriteriaId": "E7E331DA-1FB0-4DEC-91AC-7DA69D461C11",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:*",
                    "matchCriteriaId": "17F0B248-42CF-4AE6-A469-BB1BAE7F4705",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:*",
                    "matchCriteriaId": "E2422816-0C14-4B5E-A1E6-A9D776E5C49B",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc4:*:*:*:*:*:*",
                    "matchCriteriaId": "1C6E00FE-5FB9-4D20-A1A1-5A32128F9B76",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc5:*:*:*:*:*:*",
                    "matchCriteriaId": "35B26BE4-43A6-4A36-A7F6-5B3F572D9186",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc6:*:*:*:*:*:*",
                    "matchCriteriaId": "3FFFB0B3-930D-408A-91E2-BAE0C2715D80",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc7:*:*:*:*:*:*",
                    "matchCriteriaId": "8535320E-A0DB-4277-800E-D0CE5BBA59E8",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (coretemp) Check for null before removing sysfs attrs\n\nIf coretemp_add_core() gets an error then pdata-\u003ecore_data[indx]\nis already NULL and has been kfreed. Don\u0027t pass that to\nsysfs_remove_group() as that will crash in sysfs_remove_group().\n\n[Shortened for readability]\n[91854.020159] sysfs: cannot create duplicate filename \u0027/devices/platform/coretemp.0/hwmon/hwmon2/temp20_label\u0027\n\u003ccpu offline\u003e\n[91855.126115] BUG: kernel NULL pointer dereference, address: 0000000000000188\n[91855.165103] #PF: supervisor read access in kernel mode\n[91855.194506] #PF: error_code(0x0000) - not-present page\n[91855.224445] PGD 0 P4D 0\n[91855.238508] Oops: 0000 [#1] PREEMPT SMP PTI\n...\n[91855.342716] RIP: 0010:sysfs_remove_group+0xc/0x80\n...\n[91855.796571] Call Trace:\n[91855.810524]  coretemp_cpu_offline+0x12b/0x1dd [coretemp]\n[91855.841738]  ? coretemp_cpu_online+0x180/0x180 [coretemp]\n[91855.871107]  cpuhp_invoke_callback+0x105/0x4b0\n[91855.893432]  cpuhp_thread_fun+0x8e/0x150\n...\n\nFix this by checking for NULL first."
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: hwmon: (coretemp) Verificar si hay valores nulos antes de eliminar los atributos de sysfs Si coretemp_add_core() obtiene un error, entonces pdata-\u0026gt;core_data[indx] ya es NULL y se ha liberado. No pase eso a sysfs_remove_group() ya que eso bloquear\u00e1 sysfs_remove_group(). [Abreviado para facilitar la lectura] [91854.020159] sysfs: no se puede crear un nombre de archivo duplicado \u0027/devices/platform/coretemp.0/hwmon/hwmon2/temp20_label\u0027  [91855.126115] ERROR: desreferencia de puntero NULL del kernel, direcci\u00f3n: 0000000000000188 [91855.165103] #PF: acceso de lectura del supervisor en modo kernel [91855.194506] #PF: error_code(0x0000) - p\u00e1gina no presente [91855.224445] PGD 0 P4D 0 [91855.238508] Oops: 0000 [#1] PREEMPT SMP PTI ... [91855.342716] RIP: 0010:sysfs_remove_group+0xc/0x80 ... [91855.796571] Seguimiento de llamadas: [91855.810524] coretemp_cpu_offline+0x12b/0x1dd [coretemp] [91855.841738] ? coretemp_cpu_online+0x180/0x180 [coretemp] [91855.871107] cpuhp_invoke_callback+0x105/0x4b0 [91855.893432] cpuhp_thread_fun+0x8e/0x150 ... Solucione esto comprobando primero si es NULL."
          }
        ],
        "id": "CVE-2022-49010",
        "lastModified": "2026-06-17T05:16:50.547",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 5.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2022-49010",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-10-22T13:13:58.658832Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2024-10-21T20:15:12.433",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/070d5ea4a0592a37ad96ce7f7b6b024f90bb009f"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/280110db1a7d62ad635b103bafc3ae96e8bef75c"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/7692700ac818866d138a8de555130a6e70e6ac16"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/89eecabe6a47403237f45aafd7d24f93cb973653"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/a89ff5f5cc64b9fe7a992cf56988fd36f56ca82a"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/ae6c8b6e5d5628df1c475c0a8fca1465e205c95b"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/f06e0cd01eab954bd5f2190c9faa79bb5357e05b"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/fb503d077ff7b43913503eaf72995d1239028b99"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-476"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-11-09T17:58:16+00:00",
      "cve": "CVE-2022-49010",
      "id": "CVE-2022-49010",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:fixed": "321",
      "product_status:known_affected": "58",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: hwmon: (coretemp) Check for null before removing sysfs attrs",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-49010.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2022-49010",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2024-10-22T13:13:58.658832Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2024-10-22T13:14:01.890Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Linux",
              "programFiles": [
                "drivers/hwmon/coretemp.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "lessThan": "fb503d077ff7b43913503eaf72995d1239028b99",
                  "status": "affected",
                  "version": "199e0de7f5df31a4fc485d4aaaf8a07718252ace",
                  "versionType": "git"
                },
                {
                  "lessThan": "070d5ea4a0592a37ad96ce7f7b6b024f90bb009f",
                  "status": "affected",
                  "version": "199e0de7f5df31a4fc485d4aaaf8a07718252ace",
                  "versionType": "git"
                },
                {
                  "lessThan": "280110db1a7d62ad635b103bafc3ae96e8bef75c",
                  "status": "affected",
                  "version": "199e0de7f5df31a4fc485d4aaaf8a07718252ace",
                  "versionType": "git"
                },
                {
                  "lessThan": "89eecabe6a47403237f45aafd7d24f93cb973653",
                  "status": "affected",
                  "version": "199e0de7f5df31a4fc485d4aaaf8a07718252ace",
                  "versionType": "git"
                },
                {
                  "lessThan": "f06e0cd01eab954bd5f2190c9faa79bb5357e05b",
                  "status": "affected",
                  "version": "199e0de7f5df31a4fc485d4aaaf8a07718252ace",
                  "versionType": "git"
                },
                {
                  "lessThan": "7692700ac818866d138a8de555130a6e70e6ac16",
                  "status": "affected",
                  "version": "199e0de7f5df31a4fc485d4aaaf8a07718252ace",
                  "versionType": "git"
                },
                {
                  "lessThan": "ae6c8b6e5d5628df1c475c0a8fca1465e205c95b",
                  "status": "affected",
                  "version": "199e0de7f5df31a4fc485d4aaaf8a07718252ace",
                  "versionType": "git"
                },
                {
                  "lessThan": "a89ff5f5cc64b9fe7a992cf56988fd36f56ca82a",
                  "status": "affected",
                  "version": "199e0de7f5df31a4fc485d4aaaf8a07718252ace",
                  "versionType": "git"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "drivers/hwmon/coretemp.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "3.0"
                },
                {
                  "lessThan": "3.0",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "4.9.*",
                  "status": "unaffected",
                  "version": "4.9.335",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "4.14.*",
                  "status": "unaffected",
                  "version": "4.14.301",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "4.19.*",
                  "status": "unaffected",
                  "version": "4.19.268",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.4.*",
                  "status": "unaffected",
                  "version": "5.4.226",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.10.*",
                  "status": "unaffected",
                  "version": "5.10.158",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.15.*",
                  "status": "unaffected",
                  "version": "5.15.82",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.0.*",
                  "status": "unaffected",
                  "version": "6.0.12",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "6.1",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (coretemp) Check for null before removing sysfs attrs\n\nIf coretemp_add_core() gets an error then pdata-\u003ecore_data[indx]\nis already NULL and has been kfreed. Don\u0027t pass that to\nsysfs_remove_group() as that will crash in sysfs_remove_group().\n\n[Shortened for readability]\n[91854.020159] sysfs: cannot create duplicate filename \u0027/devices/platform/coretemp.0/hwmon/hwmon2/temp20_label\u0027\n\u003ccpu offline\u003e\n[91855.126115] BUG: kernel NULL pointer dereference, address: 0000000000000188\n[91855.165103] #PF: supervisor read access in kernel mode\n[91855.194506] #PF: error_code(0x0000) - not-present page\n[91855.224445] PGD 0 P4D 0\n[91855.238508] Oops: 0000 [#1] PREEMPT SMP PTI\n...\n[91855.342716] RIP: 0010:sysfs_remove_group+0xc/0x80\n...\n[91855.796571] Call Trace:\n[91855.810524]  coretemp_cpu_offline+0x12b/0x1dd [coretemp]\n[91855.841738]  ? coretemp_cpu_online+0x180/0x180 [coretemp]\n[91855.871107]  cpuhp_invoke_callback+0x105/0x4b0\n[91855.893432]  cpuhp_thread_fun+0x8e/0x150\n...\n\nFix this by checking for NULL first."
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2024-12-19T08:12:23.232Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/fb503d077ff7b43913503eaf72995d1239028b99"
            },
            {
              "url": "https://git.kernel.org/stable/c/070d5ea4a0592a37ad96ce7f7b6b024f90bb009f"
            },
            {
              "url": "https://git.kernel.org/stable/c/280110db1a7d62ad635b103bafc3ae96e8bef75c"
            },
            {
              "url": "https://git.kernel.org/stable/c/89eecabe6a47403237f45aafd7d24f93cb973653"
            },
            {
              "url": "https://git.kernel.org/stable/c/f06e0cd01eab954bd5f2190c9faa79bb5357e05b"
            },
            {
              "url": "https://git.kernel.org/stable/c/7692700ac818866d138a8de555130a6e70e6ac16"
            },
            {
              "url": "https://git.kernel.org/stable/c/ae6c8b6e5d5628df1c475c0a8fca1465e205c95b"
            },
            {
              "url": "https://git.kernel.org/stable/c/a89ff5f5cc64b9fe7a992cf56988fd36f56ca82a"
            }
          ],
          "title": "hwmon: (coretemp) Check for null before removing sysfs attrs",
          "x_generator": {
            "engine": "bippy-5f407fcff5a0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2022-49010",
        "datePublished": "2024-10-21T20:06:21.423Z",
        "dateReserved": "2024-08-22T01:27:53.644Z",
        "dateUpdated": "2024-12-19T08:12:23.232Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Loading timeline…




    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.