CVE-2024-50061 (GCVE-0-2024-50061)

Vulnerability from cvelistv5 – Published: 2024-10-21 19:39 – Updated: 2026-05-11 20:44
VLAI
Title
i3c: master: cdns: Fix use after free vulnerability in cdns_i3c_master Driver Due to Race Condition
Summary
In the Linux kernel, the following vulnerability has been resolved: i3c: master: cdns: Fix use after free vulnerability in cdns_i3c_master Driver Due to Race Condition In the cdns_i3c_master_probe function, &master->hj_work is bound with cdns_i3c_master_hj. And cdns_i3c_master_interrupt can call cnds_i3c_master_demux_ibis function to start the work. If we remove the module which will call cdns_i3c_master_remove to make cleanup, it will free master->base through i3c_master_unregister while the work mentioned above will be used. The sequence of operations that may lead to a UAF bug is as follows: CPU0 CPU1 | cdns_i3c_master_hj cdns_i3c_master_remove | i3c_master_unregister(&master->base) | device_unregister(&master->dev) | device_release | //free master->base | | i3c_master_do_daa(&master->base) | //use master->base Fix it by ensuring that the work is canceled before proceeding with the cleanup in cdns_i3c_master_remove.
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 13:22 UTC
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6653 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 , < 2a21bad9964c91b34d65ba269914233720c0b1ce (git)
Affected: 3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 , < ea0256e393e0072e8c80fd941547807f0c28108b (git)
Affected: 3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 , < 687016d6a1efbfacdd2af913e2108de6b75a28d5 (git)
Affected: 3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 , < 609366e7a06d035990df78f1562291c3bf0d4a12 (git)
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Linux Linux Affected: 5.0
Unaffected: 0 , < 5.0 (semver)
Unaffected: 6.1.129 , ≤ 6.1.* (semver)
Unaffected: 6.6.57 , ≤ 6.6.* (semver)
Unaffected: 6.11.4 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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                  "versionType": "git"
                },
                {
                  "lessThan": "687016d6a1efbfacdd2af913e2108de6b75a28d5",
                  "status": "affected",
                  "version": "3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0",
                  "versionType": "git"
                },
                {
                  "lessThan": "609366e7a06d035990df78f1562291c3bf0d4a12",
                  "status": "affected",
                  "version": "3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0",
                  "versionType": "git"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "drivers/i3c/master/i3c-master-cdns.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "5.0"
                },
                {
                  "lessThan": "5.0",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.1.*",
                  "status": "unaffected",
                  "version": "6.1.129",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.6.*",
                  "status": "unaffected",
                  "version": "6.6.57",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.11.*",
                  "status": "unaffected",
                  "version": "6.11.4",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "6.12",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.1.129",
                      "versionStartIncluding": "5.0",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.6.57",
                      "versionStartIncluding": "5.0",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.11.4",
                      "versionStartIncluding": "5.0",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.12",
                      "versionStartIncluding": "5.0",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ni3c: master: cdns: Fix use after free vulnerability in cdns_i3c_master Driver Due to Race Condition\n\nIn the cdns_i3c_master_probe function, \u0026master-\u003ehj_work is bound with\ncdns_i3c_master_hj. And cdns_i3c_master_interrupt can call\ncnds_i3c_master_demux_ibis function to start the work.\n\nIf we remove the module which will call cdns_i3c_master_remove to\nmake cleanup, it will free master-\u003ebase through i3c_master_unregister\nwhile the work mentioned above will be used. The sequence of operations\nthat may lead to a UAF bug is as follows:\n\nCPU0                                      CPU1\n\n                                     | cdns_i3c_master_hj\ncdns_i3c_master_remove               |\ni3c_master_unregister(\u0026master-\u003ebase) |\ndevice_unregister(\u0026master-\u003edev)      |\ndevice_release                       |\n//free master-\u003ebase                  |\n                                     | i3c_master_do_daa(\u0026master-\u003ebase)\n                                     | //use master-\u003ebase\n\nFix it by ensuring that the work is canceled before proceeding with\nthe cleanup in cdns_i3c_master_remove."
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2025-05-04T09:45:00.112Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/2a21bad9964c91b34d65ba269914233720c0b1ce"
            },
            {
              "url": "https://git.kernel.org/stable/c/ea0256e393e0072e8c80fd941547807f0c28108b"
            },
            {
              "url": "https://git.kernel.org/stable/c/687016d6a1efbfacdd2af913e2108de6b75a28d5"
            },
            {
              "url": "https://git.kernel.org/stable/c/609366e7a06d035990df78f1562291c3bf0d4a12"
            }
          ],
          "title": "i3c: master: cdns: Fix use after free vulnerability in cdns_i3c_master Driver Due to Race Condition",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2024-50061",
        "datePublished": "2024-10-21T19:39:50.415Z",
        "dateReserved": "2024-10-21T19:36:19.939Z",
        "dateUpdated": "2025-11-03T19:31:38.673Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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  • 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.
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Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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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.

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