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CVE-2025-22057 (GCVE-0-2025-22057)

Vulnerability from cvelistv5 – Published: 2025-04-16 14:12 – Updated: 2026-08-05 11:56
VLAI
Title
net: decrease cached dst counters in dst_release
Summary
In the Linux kernel, the following vulnerability has been resolved: net: decrease cached dst counters in dst_release Upstream fix ac888d58869b ("net: do not delay dst_entries_add() in dst_release()") moved decrementing the dst count from dst_destroy to dst_release to avoid accessing already freed data in case of netns dismantle. However in case CONFIG_DST_CACHE is enabled and OvS+tunnels are used, this fix is incomplete as the same issue will be seen for cached dsts: Unable to handle kernel paging request at virtual address ffff5aabf6b5c000 Call trace: percpu_counter_add_batch+0x3c/0x160 (P) dst_release+0xec/0x108 dst_cache_destroy+0x68/0xd8 dst_destroy+0x13c/0x168 dst_destroy_rcu+0x1c/0xb0 rcu_do_batch+0x18c/0x7d0 rcu_core+0x174/0x378 rcu_core_si+0x18/0x30 Fix this by invalidating the cache, and thus decrementing cached dst counters, in dst_release too.
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: d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8 , < ccc331fd5bcae131d2627d5ef099d4a1f6540aea (git)
Affected: d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8 , < 92a5c18513117be69bc00419dd1724c1940f8fcd (git)
Affected: d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8 , < 836415a8405c9665ae55352fc5ba865c242f5e4f (git)
Affected: d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8 , < e833e7ad64eb2f63867f65303be49ca30ee8819e (git)
Affected: d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8 , < 3a0a3ff6593d670af2451ec363ccb7b18aec0c0a (git)
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Linux Linux Affected: 4.6
Unaffected: 0 , < 4.6 (semver)
Unaffected: 6.6.87 , ≤ 6.6.* (semver)
Unaffected: 6.12.23 , ≤ 6.12.* (semver)
Unaffected: 6.13.11 , ≤ 6.13.* (semver)
Unaffected: 6.14.2 , ≤ 6.14.* (semver)
Unaffected: 6.15 , ≤ * (original_commit_for_fix)
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            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: disminuir los contadores dst en cach\u00e9 en dst_release La correcci\u00f3n ascendente ac888d58869b (\"net: no retrasar dst_entries_add() en dst_release()\") se movi\u00f3 y disminuy\u00f3 el recuento dst de dst_destroy a dst_release para evitar acceder a datos ya liberados en caso de desmantelamiento de netns. Sin embargo, en caso de que CONFIG_DST_CACHE est\u00e9 habilitado y se usen t\u00faneles OvS+, esta correcci\u00f3n est\u00e1 incompleta ya que se ver\u00e1 el mismo problema para los dst en cach\u00e9: No se puede manejar la solicitud de paginaci\u00f3n del n\u00facleo en la direcci\u00f3n virtual ffff5aabf6b5c000 Rastreo de llamadas: percpu_counter_add_batch+0x3c/0x160 (P) dst_release+0xec/0x108 dst_cache_destroy+0x68/0xd8 dst_destroy+0x13c/0x168 dst_destroy_rcu+0x1c/0xb0 rcu_do_batch+0x18c/0x7d0 rcu_core+0x174/0x378 rcu_core_si+0x18/0x30 Corrija esto invalidando el cach\u00e9 y, por lo tanto, disminuyendo los contadores dst en cach\u00e9. dst_release tambi\u00e9n."
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-07-30T09:37:04+00:00",
      "cve": "CVE-2025-22057",
      "id": "CVE-2025-22057",
      "initial_release_date": "2025-04-16T00:00:00+00:00",
      "product_status:known_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: net: decrease cached dst counters in dst_release",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-22057.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-02T01:19:18Z",
      "cve": "CVE-2025-22057",
      "id": "CVE-2025-22057",
      "initial_release_date": "2025-04-23T02:38:59Z",
      "product_status:known_affected": "750",
      "product_status:known_not_affected": "94",
      "product_status:recommended": "400",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2025-22057",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-22057.json",
      "version": "39"
    }
  }
}



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Tags
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.