CVE-2022-49229 (GCVE-0-2022-49229)
Vulnerability from cvelistv5
Published
2025-02-26 01:55
Modified
2025-05-04 08:32
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: ptp: unregister virtual clocks when unregistering physical clock. When unregistering a physical clock which has some virtual clocks, unregister the virtual clocks with it. This fixes the following oops, which can be triggered by unloading a driver providing a PTP clock when it has enabled virtual clocks: BUG: unable to handle page fault for address: ffffffffc04fc4d8 Oops: 0000 [#1] PREEMPT SMP NOPTI RIP: 0010:ptp_vclock_read+0x31/0xb0 Call Trace: timecounter_read+0xf/0x50 ptp_vclock_refresh+0x2c/0x50 ? ptp_clock_release+0x40/0x40 ptp_aux_kworker+0x17/0x30 kthread_worker_fn+0x9b/0x240 ? kthread_should_park+0x30/0x30 kthread+0xe2/0x110 ? kthread_complete_and_exit+0x20/0x20 ret_from_fork+0x22/0x30
References
https://git.kernel.org/stable/c/b2dea2a696d09163da4cd33cb598ce1f73e86597
https://git.kernel.org/stable/c/9c796a57cbb5daf124a665689f0b2bc9262e0ced
https://git.kernel.org/stable/c/c49eafe6249f844c26f9866886cc6719d81762df
https://git.kernel.org/stable/c/bfcbb76b0f595ea9ede9f7a218086fef85242f10
Impacted products
Vendor Product Version
Linux Linux Version: 73f37068d540eba5f93ba3a0019bf479d35ebd76
Version: 73f37068d540eba5f93ba3a0019bf479d35ebd76
Version: 73f37068d540eba5f93ba3a0019bf479d35ebd76
Version: 73f37068d540eba5f93ba3a0019bf479d35ebd76
 Create a notification for this product.
   Linux Linux Version: 5.14
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/ptp/ptp_clock.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "b2dea2a696d09163da4cd33cb598ce1f73e86597",
              "status": "affected",
              "version": "73f37068d540eba5f93ba3a0019bf479d35ebd76",
              "versionType": "git"
            },
            {
              "lessThan": "9c796a57cbb5daf124a665689f0b2bc9262e0ced",
              "status": "affected",
              "version": "73f37068d540eba5f93ba3a0019bf479d35ebd76",
              "versionType": "git"
            },
            {
              "lessThan": "c49eafe6249f844c26f9866886cc6719d81762df",
              "status": "affected",
              "version": "73f37068d540eba5f93ba3a0019bf479d35ebd76",
              "versionType": "git"
            },
            {
              "lessThan": "bfcbb76b0f595ea9ede9f7a218086fef85242f10",
              "status": "affected",
              "version": "73f37068d540eba5f93ba3a0019bf479d35ebd76",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/ptp/ptp_clock.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.14"
            },
            {
              "lessThan": "5.14",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.33",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.16.*",
              "status": "unaffected",
              "version": "5.16.19",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.17.*",
              "status": "unaffected",
              "version": "5.17.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.33",
                  "versionStartIncluding": "5.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.16.19",
                  "versionStartIncluding": "5.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.17.2",
                  "versionStartIncluding": "5.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.18",
                  "versionStartIncluding": "5.14",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nptp: unregister virtual clocks when unregistering physical clock.\n\nWhen unregistering a physical clock which has some virtual clocks,\nunregister the virtual clocks with it.\n\nThis fixes the following oops, which can be triggered by unloading\na driver providing a PTP clock when it has enabled virtual clocks:\n\nBUG: unable to handle page fault for address: ffffffffc04fc4d8\nOops: 0000 [#1] PREEMPT SMP NOPTI\nRIP: 0010:ptp_vclock_read+0x31/0xb0\nCall Trace:\n timecounter_read+0xf/0x50\n ptp_vclock_refresh+0x2c/0x50\n ? ptp_clock_release+0x40/0x40\n ptp_aux_kworker+0x17/0x30\n kthread_worker_fn+0x9b/0x240\n ? kthread_should_park+0x30/0x30\n kthread+0xe2/0x110\n ? kthread_complete_and_exit+0x20/0x20\n ret_from_fork+0x22/0x30"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T08:32:54.820Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/b2dea2a696d09163da4cd33cb598ce1f73e86597"
        },
        {
          "url": "https://git.kernel.org/stable/c/9c796a57cbb5daf124a665689f0b2bc9262e0ced"
        },
        {
          "url": "https://git.kernel.org/stable/c/c49eafe6249f844c26f9866886cc6719d81762df"
        },
        {
          "url": "https://git.kernel.org/stable/c/bfcbb76b0f595ea9ede9f7a218086fef85242f10"
        }
      ],
      "title": "ptp: unregister virtual clocks when unregistering physical clock.",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49229",
    "datePublished": "2025-02-26T01:55:57.155Z",
    "dateReserved": "2025-02-26T01:49:39.293Z",
    "dateUpdated": "2025-05-04T08:32:54.820Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.