FKIE_CVE-2024-0562

Vulnerability from fkie_nvd - Published: 2024-01-15 19:15 - Updated: 2026-06-17 06:53
Severity
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
A use-after-free flaw was found in the Linux Kernel. When a disk is removed, bdi_unregister is called to stop further write-back and waits for associated delayed work to complete. However, wb_inode_writeback_end() may schedule bandwidth estimation work after this has completed, which can result in the timer attempting to access the recently freed bdi_writeback.
References
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2024:0412Third Party Advisory
secalert@redhat.comhttps://access.redhat.com/security/cve/CVE-2024-0562Third Party Advisory
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2258475Issue Tracking, Third Party Advisory
secalert@redhat.comhttps://patchwork.kernel.org/project/linux-mm/patch/20220801155034.3772543-1-khazhy@google.com/Mailing List, Patch
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2024:0412Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/security/cve/CVE-2024-0562Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=2258475Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://patchwork.kernel.org/project/linux-mm/patch/20220801155034.3772543-1-khazhy@google.com/Mailing List, Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.0
linux linux_kernel 6.0
redhat enterprise_linux 8.0
redhat enterprise_linux 9.0
To clipboard 

{
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          "defaultStatus": "unaffected",
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          ],
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          "product": "Red Hat Enterprise Linux 8.6 Extended Update Support",
          "vendor": "Red Hat",
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              "lessThan": "*",
              "status": "unaffected",
              "version": "0:4.18.0-372.87.1.el8_6",
              "versionType": "rpm"
            }
          ]
        },
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          "vendor": "Red Hat",
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        },
        {
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            "cpe:/o:redhat:enterprise_linux:6"
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          "vendor": "Red Hat"
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        },
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          "product": "Red Hat Enterprise Linux 9",
          "vendor": "Red Hat"
        },
        {
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          "cpes": [
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          ],
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          "packageName": "kernel-rt",
          "product": "Red Hat Enterprise Linux 9",
          "vendor": "Red Hat"
        }
      ],
      "source": "secalert@redhat.com"
    }
  ],
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  "cveTags": [],
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    {
      "lang": "en",
      "value": "A use-after-free flaw was found in the Linux Kernel. When a disk is removed, bdi_unregister is called to stop further write-back and waits for associated delayed work to complete. However, wb_inode_writeback_end() may schedule bandwidth estimation work after this has completed, which can result in the timer attempting to access the recently freed bdi_writeback."
    },
    {
      "lang": "es",
      "value": "Se encontr\u00f3 un fallo de use after free en el kernel de Linux. Cuando se elimina un disco, se llama a bdi_unregister para detener la reescritura adicional y espera a que se complete el trabajo retrasado asociado. Sin embargo, wb_inode_writeback_end() puede programar el trabajo de estimaci\u00f3n del ancho de banda despu\u00e9s de que se haya completado, lo que puede provocar que el temporizador intente acceder al bdi_writeback recientemente liberado."
    }
  ],
  "id": "CVE-2024-0562",
  "lastModified": "2026-06-17T06:53:47.100",
  "metrics": {
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          "role": "CISA Coordinator",
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}


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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.


Detection rules are retrieved from Rulezet.