CVE-2024-26825 (GCVE-0-2024-26825)

Vulnerability from cvelistv5 – Published: 2024-04-17 09:43 – Updated: 2025-05-04 08:57
VLAI?
Summary
In the Linux kernel, the following vulnerability has been resolved: nfc: nci: free rx_data_reassembly skb on NCI device cleanup rx_data_reassembly skb is stored during NCI data exchange for processing fragmented packets. It is dropped only when the last fragment is processed or when an NTF packet with NCI_OP_RF_DEACTIVATE_NTF opcode is received. However, the NCI device may be deallocated before that which leads to skb leak. As by design the rx_data_reassembly skb is bound to the NCI device and nothing prevents the device to be freed before the skb is processed in some way and cleaned, free it on the NCI device cleanup. Found by Linux Verification Center (linuxtesting.org) with Syzkaller.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 6a2968aaf50c7a22fced77a5e24aa636281efca8 , < 7e9a8498658b398bf11b8e388005fa54e40aed81 (git)
Affected: 6a2968aaf50c7a22fced77a5e24aa636281efca8 , < 71349abe3aba7fedcab5b3fcd7aa82371fb5ccbf (git)
Affected: 6a2968aaf50c7a22fced77a5e24aa636281efca8 , < 2f6d16f0520d6505241629ee2f5c131b547d5f9d (git)
Affected: 6a2968aaf50c7a22fced77a5e24aa636281efca8 , < 471c9ede8061357b43a116fa692e70d91941ac23 (git)
Affected: 6a2968aaf50c7a22fced77a5e24aa636281efca8 , < 5c0c5ffaed73cbae6c317374dc32ba6cacc60895 (git)
Affected: 6a2968aaf50c7a22fced77a5e24aa636281efca8 , < 16d3f507b0fa70453dc54550df093d6e9ac630c1 (git)
Affected: 6a2968aaf50c7a22fced77a5e24aa636281efca8 , < a3d90fb5c23f29ba59c04005ae76c5228cef2be9 (git)
Affected: 6a2968aaf50c7a22fced77a5e24aa636281efca8 , < bfb007aebe6bff451f7f3a4be19f4f286d0d5d9c (git)
Create a notification for this product.
    Linux Linux Affected: 3.2
Unaffected: 0 , < 3.2 (semver)
Unaffected: 4.19.307 , ≤ 4.19.* (semver)
Unaffected: 5.4.269 , ≤ 5.4.* (semver)
Unaffected: 5.10.210 , ≤ 5.10.* (semver)
Unaffected: 5.15.149 , ≤ 5.15.* (semver)
Unaffected: 6.1.79 , ≤ 6.1.* (semver)
Unaffected: 6.6.18 , ≤ 6.6.* (semver)
Unaffected: 6.7.6 , ≤ 6.7.* (semver)
Unaffected: 6.8 , ≤ * (original_commit_for_fix)
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Sin embargo, el dispositivo NCI puede desasignarse antes de lo que provoca una fuga de skb. Como por dise\u00f1o el skb rx_data_reassembly est\u00e1 vinculado al dispositivo NCI y nada impide que el dispositivo se libere antes de que el skb se procese y limpie de alguna manera, lib\u00e9relo en la limpieza del dispositivo NCI. 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    "vulnrichment": {
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{\"title\": \"nfc: nci: free rx_data_reassembly skb on NCI device cleanup\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"6a2968aaf50c7a22fced77a5e24aa636281efca8\", \"lessThan\": \"7e9a8498658b398bf11b8e388005fa54e40aed81\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"6a2968aaf50c7a22fced77a5e24aa636281efca8\", \"lessThan\": \"71349abe3aba7fedcab5b3fcd7aa82371fb5ccbf\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"6a2968aaf50c7a22fced77a5e24aa636281efca8\", \"lessThan\": \"2f6d16f0520d6505241629ee2f5c131b547d5f9d\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"6a2968aaf50c7a22fced77a5e24aa636281efca8\", \"lessThan\": \"471c9ede8061357b43a116fa692e70d91941ac23\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": 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\"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.19.307\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.269\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.210\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.149\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.79\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.18\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.7.6\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.7.*\"}, {\"status\": \"unaffected\", \"version\": \"6.8\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/nfc/nci/core.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/7e9a8498658b398bf11b8e388005fa54e40aed81\"}, {\"url\": \"https://git.kernel.org/stable/c/71349abe3aba7fedcab5b3fcd7aa82371fb5ccbf\"}, {\"url\": \"https://git.kernel.org/stable/c/2f6d16f0520d6505241629ee2f5c131b547d5f9d\"}, {\"url\": \"https://git.kernel.org/stable/c/471c9ede8061357b43a116fa692e70d91941ac23\"}, {\"url\": \"https://git.kernel.org/stable/c/5c0c5ffaed73cbae6c317374dc32ba6cacc60895\"}, {\"url\": \"https://git.kernel.org/stable/c/16d3f507b0fa70453dc54550df093d6e9ac630c1\"}, {\"url\": \"https://git.kernel.org/stable/c/a3d90fb5c23f29ba59c04005ae76c5228cef2be9\"}, {\"url\": \"https://git.kernel.org/stable/c/bfb007aebe6bff451f7f3a4be19f4f286d0d5d9c\"}], \"x_generator\": {\"engine\": \"bippy-5f407fcff5a0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnfc: nci: free rx_data_reassembly skb on NCI device cleanup\\n\\nrx_data_reassembly skb is stored during NCI data exchange for processing\\nfragmented packets. It is dropped only when the last fragment is processed\\nor when an NTF packet with NCI_OP_RF_DEACTIVATE_NTF opcode is received.\\nHowever, the NCI device may be deallocated before that which leads to skb\\nleak.\\n\\nAs by design the rx_data_reassembly skb is bound to the NCI device and\\nnothing prevents the device to be freed before the skb is processed in\\nsome way and cleaned, free it on the NCI device cleanup.\\n\\nFound by Linux Verification Center (linuxtesting.org) with Syzkaller.\"}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2024-12-19T08:48:10.882Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-26825\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-12-19T08:48:10.882Z\", \"dateReserved\": \"2024-02-19T14:20:24.181Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-04-17T09:43:51.114Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Sightings

Author Source Type Date

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.