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CVE-2025-37796 (GCVE-0-2025-37796)

Vulnerability from cvelistv5 – Published: 2025-05-01 13:07 – Updated: 2026-05-11 21:15
VLAI
Title
wifi: at76c50x: fix use after free access in at76_disconnect
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: at76c50x: fix use after free access in at76_disconnect The memory pointed to by priv is freed at the end of at76_delete_device function (using ieee80211_free_hw). But the code then accesses the udev field of the freed object to put the USB device. This may also lead to a memory leak of the usb device. Fix this by using udev from interface.
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: 29e20aa6c6aff35c81d4da2e2cd516dadb569061 , < c731cdfddcf1be1590d5ba8c9b508f98e3a2b3d6 (git)
Affected: 29e20aa6c6aff35c81d4da2e2cd516dadb569061 , < 6e4ab3e574c2a335b40fa1f70d1c54fcb58ab33f (git)
Affected: 29e20aa6c6aff35c81d4da2e2cd516dadb569061 , < 3c619aec1f538333b56746d2f796aab1bca5c9a5 (git)
Affected: 29e20aa6c6aff35c81d4da2e2cd516dadb569061 , < 5e7df74745700f059dc117a620e566964a2e8f2c (git)
Affected: 29e20aa6c6aff35c81d4da2e2cd516dadb569061 , < 7ca513631fa6ad3011b8b9197cdde0f351103704 (git)
Affected: 29e20aa6c6aff35c81d4da2e2cd516dadb569061 , < a9682bfef2cf3802515a902e964d774e137be1b9 (git)
Affected: 29e20aa6c6aff35c81d4da2e2cd516dadb569061 , < 152721cbae42713ecfbca6847e0f102ee6b19546 (git)
Affected: 29e20aa6c6aff35c81d4da2e2cd516dadb569061 , < 27c7e63b3cb1a20bb78ed4a36c561ea4579fd7da (git)
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Linux Linux Affected: 3.17
Unaffected: 0 , < 3.17 (semver)
Unaffected: 5.4.293 , ≤ 5.4.* (semver)
Unaffected: 5.10.237 , ≤ 5.10.* (semver)
Unaffected: 5.15.181 , ≤ 5.15.* (semver)
Unaffected: 6.1.135 , ≤ 6.1.* (semver)
Unaffected: 6.6.88 , ≤ 6.6.* (semver)
Unaffected: 6.12.25 , ≤ 6.12.* (semver)
Unaffected: 6.14.4 , ≤ 6.14.* (semver)
Unaffected: 6.15 , ≤ * (original_commit_for_fix)
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Se soluciona usando udev desde la 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    "redhat_vex": {
      "aggregate_severity": "None",
      "current_release_date": "2026-06-30T10:17:45+00:00",
      "cve": "CVE-2025-37796",
      "id": "CVE-2025-37796",
      "initial_release_date": "2025-05-01T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: wifi: at76c50x: fix use after free access in at76_disconnect",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-37796.json",
      "version": "3"
    }
  }
}



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Taxonomy of the tags.





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.


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.