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CVE-2025-21715 (GCVE-0-2025-21715)

Vulnerability from cvelistv5 – Published: 2025-02-27 02:07 – Updated: 2026-05-23 15:56
VLAI
Title
net: davicom: fix UAF in dm9000_drv_remove
Summary
In the Linux kernel, the following vulnerability has been resolved: net: davicom: fix UAF in dm9000_drv_remove dm is netdev private data and it cannot be used after free_netdev() call. Using dm after free_netdev() can cause UAF bug. Fix it by moving free_netdev() at the end of the function. This is similar to the issue fixed in commit ad297cd2db89 ("net: qcom/emac: fix UAF in emac_remove"). This bug is detected by our static analysis tool.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-27 17:58 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: d28e783c20033b90a64d4e1307bafb56085d8184 , < db79e982c5f9e39ab710cbce55b05f2f5e6f1ca9 (git)
Affected: 4fd0654b8f2129b68203974ddee15f804ec011c2 , < a53cb72043443ac787ec0b5fa17bb3f8ff3d462b (git)
Affected: cf9e60aa69ae6c40d3e3e4c94dd6c8de31674e9b , < 7d7d201eb3b766abe590ac0dda7a508b7db3e357 (git)
Affected: cf9e60aa69ae6c40d3e3e4c94dd6c8de31674e9b , < c94ab07edc2843e2f3d46dbd82e5c681503aaadf (git)
Affected: cf9e60aa69ae6c40d3e3e4c94dd6c8de31674e9b , < c411f9a5fdc9158e8f7c57eac961d3df3eb4d8ca (git)
Affected: cf9e60aa69ae6c40d3e3e4c94dd6c8de31674e9b , < 5a54367a7c2378c65aaa4d3cfd952f26adef7aa7 (git)
Affected: cf9e60aa69ae6c40d3e3e4c94dd6c8de31674e9b , < 2013c95df6752d9c88221d0f0f37b6f197969390 (git)
Affected: cf9e60aa69ae6c40d3e3e4c94dd6c8de31674e9b , < 19e65c45a1507a1a2926649d2db3583ed9d55fd9 (git)
Affected: d182994b2b6e23778b146a230efac8f1d77a3445 (git)
Affected: 427b3fc3d5244fef9c1f910a9c699f2690642f83 (git)
Affected: 9c49181c201d434186ca6b1a7b52e29f4169f6f8 (git)
Affected: 9808f032c4d971cbf2b01411a0a2a8ee0040efe3 (git)
Affected: a1f308089257616cdb91b4334c5eaa81ae17e387 (git)
Affected: 5.4.106 , < 5.4.291 (semver)
Affected: 5.10.24 , < 5.10.235 (semver)
Affected: 4.4.262 , < 4.5 (semver)
Affected: 4.9.262 , < 4.10 (semver)
Affected: 4.14.226 , < 4.15 (semver)
Affected: 4.19.181 , < 4.20 (semver)
Affected: 5.11.7 , < 5.12 (semver)
guessed Create a notification for this product.
Linux Linux Affected: 5.12
Unaffected: 0 , < 5.12 (semver)
Unaffected: 5.4.291 , ≤ 5.4.* (semver)
Unaffected: 5.10.235 , ≤ 5.10.* (semver)
Unaffected: 5.15.179 , ≤ 5.15.* (semver)
Unaffected: 6.1.129 , ≤ 6.1.* (semver)
Unaffected: 6.6.76 , ≤ 6.6.* (semver)
Unaffected: 6.12.13 , ≤ 6.12.* (semver)
Unaffected: 6.13.2 , ≤ 6.13.* (semver)
Unaffected: 6.14 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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Fix it by moving free_netdev() at the end of the\\nfunction.\\n\\nThis is similar to the issue fixed in commit\\nad297cd2db89 (\\\"net: qcom/emac: fix UAF in emac_remove\\\").\\n\\nThis bug is detected by our static analysis tool.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: davicom: fix UAF in dm9000_drv_remove dm son datos privados de netdev y no se pueden usar despu\u00e9s de la llamada a free_netdev(). El uso de dm despu\u00e9s de free_netdev() puede provocar un error de UAF. Solucione el problema moviendo free_netdev() al final de la funci\u00f3n. Esto es similar al problema solucionado en el commit ad297cd2db89 (\\\"net: qcom/emac: fix UAF in emac_remove\\\"). Nuestra herramienta de an\u00e1lisis est\u00e1tico detecta este 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    "redhat_vex": {
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      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: net: davicom: fix UAF in dm9000_drv_remove",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-21715.json",
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Using dm after free_netdev()\\ncan cause UAF bug. Fix it by moving free_netdev() at the end of the\\nfunction.\\n\\nThis is similar to the issue fixed in commit\\nad297cd2db89 (\\\"net: qcom/emac: fix UAF in emac_remove\\\").\\n\\nThis bug is detected by our static analysis tool.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.291\", \"versionStartIncluding\": \"5.4.106\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.235\", \"versionStartIncluding\": \"5.10.24\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.179\", \"versionStartIncluding\": \"5.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.129\", \"versionStartIncluding\": \"5.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.76\", \"versionStartIncluding\": \"5.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12.13\", \"versionStartIncluding\": \"5.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.13.2\", \"versionStartIncluding\": \"5.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.14\", \"versionStartIncluding\": \"5.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"4.4.262\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"4.9.262\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"4.14.226\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"4.19.181\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"5.11.7\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T21:05:00.323Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-21715\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T21:05:00.323Z\", \"dateReserved\": \"2024-12-29T08:45:45.752Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-02-27T02:07:26.174Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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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

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.