CVE-2025-37962 (GCVE-0-2025-37962)

Vulnerability from cvelistv5 – Published: 2025-05-20 16:01 – Updated: 2026-05-23 15:58
VLAI
Title
ksmbd: fix memory leak in parse_lease_state()
Summary
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix memory leak in parse_lease_state() The previous patch that added bounds check for create lease context introduced a memory leak. When the bounds check fails, the function returns NULL without freeing the previously allocated lease_ctx_info structure. This patch fixes the issue by adding kfree(lreq) before returning NULL in both boundary check cases.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 629dd37acc336ad778979361c351e782053ea284 , < facf22c1a394c1e023dab5daf9a494f722771e1c (git)
Affected: 60b7207893a8a06c78441934931a08fdad63f18e , < af9e2d4732a548db8f6f5a90c2c20a789a3d7240 (git)
Affected: 800c482c9ef5910f05e3a713943c67cc6c1d4939 , < 2148d34371b06dac696c0497a98a6bf905a51650 (git)
Affected: 9a1b6ea955e6c7b29939a6d98701202f9d9644ec , < 829e19ef741d9e9932abdc3bee5466195e0852cf (git)
Affected: bab703ed8472aa9d109c5f8c1863921533363dae , < eb4447bcce915b43b691123118893fca4f372a8f (git)
Affected: a41cd52f00907a040ca22c73d4805bb79b0d0972 (git)
Affected: 6.13.11 , < 6.14 (semver)
Create a notification for this product.
Linux Linux Affected: 6.1.134 , < 6.1.139 (semver)
Affected: 6.6.87 , < 6.6.91 (semver)
Affected: 6.12.23 , < 6.12.29 (semver)
Affected: 6.14.2 , < 6.14.7 (semver)
Create a notification for this product.
Show details on NVD website
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    "redhat_vex": {
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      "current_release_date": "2026-06-30T10:31:49+00:00",
      "cve": "CVE-2025-37962",
      "id": "CVE-2025-37962",
      "initial_release_date": "2025-05-20T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: ksmbd: fix memory leak in parse_lease_state()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-37962.json",
      "version": "3"
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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

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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.