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CVE-2022-50034 (GCVE-0-2022-50034)

Vulnerability from cvelistv5 – Published: 2025-06-18 11:01 – Updated: 2026-08-15 12:23
VLAI
Title
usb: cdns3 fix use-after-free at workaround 2
Summary
In the Linux kernel, the following vulnerability has been resolved: usb: cdns3 fix use-after-free at workaround 2 BUG: KFENCE: use-after-free read in __list_del_entry_valid+0x10/0xac cdns3_wa2_remove_old_request() { ... kfree(priv_req->request.buf); cdns3_gadget_ep_free_request(&priv_ep->endpoint, &priv_req->request); list_del_init(&priv_req->list); ^^^ use after free ... } cdns3_gadget_ep_free_request() free the space pointed by priv_req, but priv_req is used in the following list_del_init(). This patch move list_del_init() before cdns3_gadget_ep_free_request().
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 6bbf87a131edd39040974f3843ff97e89310ebde , < e65d9b7147d7be3504893ca7dfb85286bda83d40 (git)
Affected: 6bbf87a131edd39040974f3843ff97e89310ebde , < 6d7ac60098b206d0472475b666cb09d556bec03d (git)
Affected: 6bbf87a131edd39040974f3843ff97e89310ebde , < c3c1dbad3a2db32ecf371c97f2058491b8ba0f9a (git)
Affected: 6bbf87a131edd39040974f3843ff97e89310ebde , < 6fd50446e7c9a98b4bcf96815f5c9602a16ea472 (git)
Affected: 6bbf87a131edd39040974f3843ff97e89310ebde , < 7d602f30149a117eea260208b1661bc404c21dfd (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.4
Unaffected: 0 , < 5.4 (semver)
Unaffected: 5.4.211 , ≤ 5.4.* (semver)
Unaffected: 5.10.138 , ≤ 5.10.* (semver)
Unaffected: 5.15.63 , ≤ 5.15.* (semver)
Unaffected: 5.19.4 , ≤ 5.19.* (semver)
Unaffected: 6.0 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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{
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-29T21:37:52+00:00",
      "cve": "CVE-2022-50034",
      "id": "CVE-2022-50034",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:fixed": "201",
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      "product_status:known_not_affected": "166",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: usb: cdns3 fix use-after-free at workaround 2",
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      "cve": "CVE-2022-50034",
      "id": "CVE-2022-50034",
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      "product_status:recommended": "233",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2022-50034",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-50034.json",
      "version": "38"
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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.

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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.


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