CVE-2025-22057 (GCVE-0-2025-22057)
Vulnerability from cvelistv5
Published
2025-04-16 14:12
Modified
2025-05-26 05:17
Severity ?
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.
Impacted products
Vendor Product Version
Linux Linux Version: d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8
Version: d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8
Version: d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8
Version: d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8
Version: d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8
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{
  "containers": {
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/core/dst.c"
          ],
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          "vendor": "Linux",
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        {
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          "product": "Linux",
          "programFiles": [
            "net/core/dst.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.6"
            },
            {
              "lessThan": "4.6",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.87",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.23",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.13.*",
              "status": "unaffected",
              "version": "6.13.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.14.*",
              "status": "unaffected",
              "version": "6.14.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.15",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.87",
                  "versionStartIncluding": "4.6",
                  "vulnerable": true
                },
                {
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                  "versionEndExcluding": "6.12.23",
                  "versionStartIncluding": "4.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "vulnerable": true
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                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionEndExcluding": "6.15",
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              ],
              "negate": false,
              "operator": "OR"
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          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: decrease cached dst counters in dst_release\n\nUpstream fix ac888d58869b (\"net: do not delay dst_entries_add() in\ndst_release()\") moved decrementing the dst count from dst_destroy to\ndst_release to avoid accessing already freed data in case of netns\ndismantle. However in case CONFIG_DST_CACHE is enabled and OvS+tunnels\nare used, this fix is incomplete as the same issue will be seen for\ncached dsts:\n\n  Unable to handle kernel paging request at virtual address ffff5aabf6b5c000\n  Call trace:\n   percpu_counter_add_batch+0x3c/0x160 (P)\n   dst_release+0xec/0x108\n   dst_cache_destroy+0x68/0xd8\n   dst_destroy+0x13c/0x168\n   dst_destroy_rcu+0x1c/0xb0\n   rcu_do_batch+0x18c/0x7d0\n   rcu_core+0x174/0x378\n   rcu_core_si+0x18/0x30\n\nFix this by invalidating the cache, and thus decrementing cached dst\ncounters, in dst_release too."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-26T05:17:31.861Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/ccc331fd5bcae131d2627d5ef099d4a1f6540aea"
        },
        {
          "url": "https://git.kernel.org/stable/c/92a5c18513117be69bc00419dd1724c1940f8fcd"
        },
        {
          "url": "https://git.kernel.org/stable/c/836415a8405c9665ae55352fc5ba865c242f5e4f"
        },
        {
          "url": "https://git.kernel.org/stable/c/e833e7ad64eb2f63867f65303be49ca30ee8819e"
        },
        {
          "url": "https://git.kernel.org/stable/c/3a0a3ff6593d670af2451ec363ccb7b18aec0c0a"
        }
      ],
      "title": "net: decrease cached dst counters in dst_release",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-22057",
    "datePublished": "2025-04-16T14:12:14.234Z",
    "dateReserved": "2024-12-29T08:45:45.812Z",
    "dateUpdated": "2025-05-26T05:17:31.861Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-22057\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-04-16T15:15:59.183\",\"lastModified\":\"2025-04-17T20:22:16.240\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet: decrease cached dst counters in dst_release\\n\\nUpstream fix ac888d58869b (\\\"net: do not delay dst_entries_add() in\\ndst_release()\\\") moved decrementing the dst count from dst_destroy to\\ndst_release to avoid accessing already freed data in case of netns\\ndismantle. However in case CONFIG_DST_CACHE is enabled and OvS+tunnels\\nare used, this fix is incomplete as the same issue will be seen for\\ncached dsts:\\n\\n  Unable to handle kernel paging request at virtual address ffff5aabf6b5c000\\n  Call trace:\\n   percpu_counter_add_batch+0x3c/0x160 (P)\\n   dst_release+0xec/0x108\\n   dst_cache_destroy+0x68/0xd8\\n   dst_destroy+0x13c/0x168\\n   dst_destroy_rcu+0x1c/0xb0\\n   rcu_do_batch+0x18c/0x7d0\\n   rcu_core+0x174/0x378\\n   rcu_core_si+0x18/0x30\\n\\nFix this by invalidating the cache, and thus decrementing cached dst\\ncounters, in dst_release too.\"},{\"lang\":\"es\",\"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.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/3a0a3ff6593d670af2451ec363ccb7b18aec0c0a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/836415a8405c9665ae55352fc5ba865c242f5e4f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/92a5c18513117be69bc00419dd1724c1940f8fcd\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ccc331fd5bcae131d2627d5ef099d4a1f6540aea\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e833e7ad64eb2f63867f65303be49ca30ee8819e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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