CVE-2024-35902 (GCVE-0-2024-35902)

Vulnerability from cvelistv5 – Published: 2024-05-19 08:34 – Updated: 2026-05-12 11:52
VLAI?
Title
net/rds: fix possible cp null dereference
Summary
In the Linux kernel, the following vulnerability has been resolved: net/rds: fix possible cp null dereference cp might be null, calling cp->cp_conn would produce null dereference [Simon Horman adds:] Analysis: * cp is a parameter of __rds_rdma_map and is not reassigned. * The following call-sites pass a NULL cp argument to __rds_rdma_map() - rds_get_mr() - rds_get_mr_for_dest * Prior to the code above, the following assumes that cp may be NULL (which is indicative, but could itself be unnecessary) trans_private = rs->rs_transport->get_mr( sg, nents, rs, &mr->r_key, cp ? cp->cp_conn : NULL, args->vec.addr, args->vec.bytes, need_odp ? ODP_ZEROBASED : ODP_NOT_NEEDED); * The code modified by this patch is guarded by IS_ERR(trans_private), where trans_private is assigned as per the previous point in this analysis. The only implementation of get_mr that I could locate is rds_ib_get_mr() which can return an ERR_PTR if the conn (4th) argument is NULL. * ret is set to PTR_ERR(trans_private). rds_ib_get_mr can return ERR_PTR(-ENODEV) if the conn (4th) argument is NULL. Thus ret may be -ENODEV in which case the code in question will execute. Conclusion: * cp may be NULL at the point where this patch adds a check; this patch does seem to address a possible bug
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 786854141057751bc08eb26f1b02e97c1631c8f4 , < d275de8ea7be3a453629fddae41d4156762e814c (git)
Affected: 997efea2bf3a4adb96c306b9ad6a91442237bf5b , < bcd46782e2ec3825d10c1552fcb674d491cc09f9 (git)
Affected: 9dfc15a10dfd44f8ff7f27488651cb5be6af83c2 , < cfb786b03b03c5ff38882bee38525eb9987e4d14 (git)
Affected: b562ebe21ed9adcf42242797dd6cb75beef12bf0 , < d49fac38479bfdaec52b3ea274d290c47a294029 (git)
Affected: 998fd719e6d6468b930ac0c44552ea9ff8b07b80 , < cbaac2e5488ed54833897264a5ffb2a341a9f196 (git)
Affected: 2b505d05280739ce31d5708da840f42df827cb85 , < 92309bed3c5fbe2ccd4c45056efd42edbd06162d (git)
Affected: c055fc00c07be1f0df7375ab0036cebd1106ed38 , < 6794090c742008c53b344b35b021d4a3093dc50a (git)
Affected: c055fc00c07be1f0df7375ab0036cebd1106ed38 , < 62fc3357e079a07a22465b9b6ef71bb6ea75ee4b (git)
Affected: 907761307469adecb02461a14120e9a1812a5fb1 (git)
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Linux Linux Affected: 6.8
Unaffected: 0 , < 6.8 (semver)
Unaffected: 4.19.312 , ≤ 4.19.* (semver)
Unaffected: 5.4.274 , ≤ 5.4.* (semver)
Unaffected: 5.10.215 , ≤ 5.10.* (semver)
Unaffected: 5.15.154 , ≤ 5.15.* (semver)
Unaffected: 6.1.85 , ≤ 6.1.* (semver)
Unaffected: 6.6.26 , ≤ 6.6.* (semver)
Unaffected: 6.8.5 , ≤ 6.8.* (semver)
Unaffected: 6.9 , ≤ * (original_commit_for_fix)
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/rds: fix possible cp null dereference\n\ncp might be null, calling cp-\u003ecp_conn would produce null dereference\n\n[Simon Horman adds:]\n\nAnalysis:\n\n* cp is a parameter of __rds_rdma_map and is not reassigned.\n\n* The following call-sites pass a NULL cp argument to __rds_rdma_map()\n\n  - rds_get_mr()\n  - rds_get_mr_for_dest\n\n* Prior to the code above, the following assumes that cp may be NULL\n  (which is indicative, but could itself be unnecessary)\n\n\ttrans_private = rs-\u003ers_transport-\u003eget_mr(\n\t\tsg, nents, rs, \u0026mr-\u003er_key, cp ? cp-\u003ecp_conn : NULL,\n\t\targs-\u003evec.addr, args-\u003evec.bytes,\n\t\tneed_odp ? ODP_ZEROBASED : ODP_NOT_NEEDED);\n\n* The code modified by this patch is guarded by IS_ERR(trans_private),\n  where trans_private is assigned as per the previous point in this analysis.\n\n  The only implementation of get_mr that I could locate is rds_ib_get_mr()\n  which can return an ERR_PTR if the conn (4th) argument is NULL.\n\n* ret is set to PTR_ERR(trans_private).\n  rds_ib_get_mr can return ERR_PTR(-ENODEV) if the conn (4th) argument is NULL.\n  Thus ret may be -ENODEV in which case the code in question will execute.\n\nConclusion:\n* cp may be NULL at the point where this patch adds a check;\n  this patch does seem to address a possible bug"
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      "descriptions": "[{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet/rds: fix possible cp null dereference\\n\\ncp might be null, calling cp-\u003ecp_conn would produce null dereference\\n\\n[Simon Horman adds:]\\n\\nAnalysis:\\n\\n* cp is a parameter of __rds_rdma_map and is not reassigned.\\n\\n* The following call-sites pass a NULL cp argument to __rds_rdma_map()\\n\\n  - rds_get_mr()\\n  - rds_get_mr_for_dest\\n\\n* Prior to the code above, the following assumes that cp may be NULL\\n  (which is indicative, but could itself be unnecessary)\\n\\n\\ttrans_private = rs-\u003ers_transport-\u003eget_mr(\\n\\t\\tsg, nents, rs, \u0026mr-\u003er_key, cp ? cp-\u003ecp_conn : NULL,\\n\\t\\targs-\u003evec.addr, args-\u003evec.bytes,\\n\\t\\tneed_odp ? ODP_ZEROBASED : ODP_NOT_NEEDED);\\n\\n* The code modified by this patch is guarded by IS_ERR(trans_private),\\n  where trans_private is assigned as per the previous point in this analysis.\\n\\n  The only implementation of get_mr that I could locate is rds_ib_get_mr()\\n  which can return an ERR_PTR if the conn (4th) argument is NULL.\\n\\n* ret is set to PTR_ERR(trans_private).\\n  rds_ib_get_mr can return ERR_PTR(-ENODEV) if the conn (4th) argument is NULL.\\n  Thus ret may be -ENODEV in which case the code in question will execute.\\n\\nConclusion:\\n* cp may be NULL at the point where this patch adds a check;\\n  this patch does seem to address a possible bug\"}, {\"lang\": \"es\", \"value\": \"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net/rds: corrige la posible desreferencia nula de cp cp podr\\u00eda ser nulo, llamar a cp-\u0026gt;cp_conn producir\\u00eda una desreferencia nula [Simon Horman agrega:] An\\u00e1lisis: * cp es un par\\u00e1metro de __rds_rdma_map y no es reasignado. * Los siguientes sitios de llamadas pasan un argumento cp NULL a __rds_rdma_map() - rds_get_mr() - rds_get_mr_for_dest * Antes del c\\u00f3digo anterior, lo siguiente supone que cp puede ser NULL (lo cual es indicativo, pero podr\\u00eda ser innecesario) trans_private = rs -\u0026gt;rs_transport-\u0026gt;get_mr( sg, nents, rs, \u0026amp;mr-\u0026gt;r_key, cp ? cp-\u0026gt;cp_conn : NULL, args-\u0026gt;vec.addr, args-\u0026gt;vec.bytes, need_odp ? ODP_ZEROBASED : ODP_NOT_NEEDED); * El c\\u00f3digo modificado por este parche est\\u00e1 custodiado por IS_ERR(trans_private), donde trans_private se asigna seg\\u00fan el punto anterior de este an\\u00e1lisis. La \\u00fanica implementaci\\u00f3n de get_mr que pude localizar es rds_ib_get_mr() que puede devolver un ERR_PTR si el argumento conn (cuarto) es NULL. * ret est\\u00e1 establecido en PTR_ERR(trans_private). rds_ib_get_mr puede devolver ERR_PTR(-ENODEV) si el argumento de conexi\\u00f3n (cuarto) es NULL. Por lo tanto, ret puede ser -ENODEV, en cuyo caso se ejecutar\\u00e1 el c\\u00f3digo en cuesti\\u00f3n. Conclusi\\u00f3n: * cp puede ser NULL en el punto donde este parche agrega una verificaci\\u00f3n; este parche parece solucionar un posible error \"}]",
      "id": "CVE-2024-35902",
      "lastModified": "2024-12-30T19:47:46.853",
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      "published": "2024-05-19T09:15:11.037",
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      "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "vulnStatus": "Analyzed",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-476\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-35902\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-05-19T09:15:11.037\",\"lastModified\":\"2026-05-12T12:16:40.553\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet/rds: fix possible cp null dereference\\n\\ncp might be null, calling cp-\u003ecp_conn would produce null dereference\\n\\n[Simon Horman adds:]\\n\\nAnalysis:\\n\\n* cp is a parameter of __rds_rdma_map and is not reassigned.\\n\\n* The following call-sites pass a NULL cp argument to __rds_rdma_map()\\n\\n  - rds_get_mr()\\n  - rds_get_mr_for_dest\\n\\n* Prior to the code above, the following assumes that cp may be NULL\\n  (which is indicative, but could itself be unnecessary)\\n\\n\\ttrans_private = rs-\u003ers_transport-\u003eget_mr(\\n\\t\\tsg, nents, rs, \u0026mr-\u003er_key, cp ? cp-\u003ecp_conn : NULL,\\n\\t\\targs-\u003evec.addr, args-\u003evec.bytes,\\n\\t\\tneed_odp ? ODP_ZEROBASED : ODP_NOT_NEEDED);\\n\\n* The code modified by this patch is guarded by IS_ERR(trans_private),\\n  where trans_private is assigned as per the previous point in this analysis.\\n\\n  The only implementation of get_mr that I could locate is rds_ib_get_mr()\\n  which can return an ERR_PTR if the conn (4th) argument is NULL.\\n\\n* ret is set to PTR_ERR(trans_private).\\n  rds_ib_get_mr can return ERR_PTR(-ENODEV) if the conn (4th) argument is NULL.\\n  Thus ret may be -ENODEV in which case the code in question will execute.\\n\\nConclusion:\\n* cp may be NULL at the point where this patch adds a check;\\n  this patch does seem to address a possible bug\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net/rds: corrige la posible desreferencia nula de cp cp podr\u00eda ser nulo, llamar a cp-\u0026gt;cp_conn producir\u00eda una desreferencia nula [Simon Horman agrega:] An\u00e1lisis: * cp es un par\u00e1metro de __rds_rdma_map y no es reasignado. * Los siguientes sitios de llamadas pasan un argumento cp NULL a __rds_rdma_map() - rds_get_mr() - rds_get_mr_for_dest * Antes del c\u00f3digo anterior, lo siguiente supone que cp puede ser NULL (lo cual es indicativo, pero podr\u00eda ser innecesario) trans_private = rs -\u0026gt;rs_transport-\u0026gt;get_mr( sg, nents, rs, \u0026amp;mr-\u0026gt;r_key, cp ? cp-\u0026gt;cp_conn : NULL, args-\u0026gt;vec.addr, args-\u0026gt;vec.bytes, need_odp ? ODP_ZEROBASED : ODP_NOT_NEEDED); * El c\u00f3digo modificado por este parche est\u00e1 custodiado por IS_ERR(trans_private), donde trans_private se asigna seg\u00fan el punto anterior de este an\u00e1lisis. La \u00fanica implementaci\u00f3n de get_mr que pude localizar es rds_ib_get_mr() que puede devolver un ERR_PTR si el argumento conn (cuarto) es NULL. * ret est\u00e1 establecido en PTR_ERR(trans_private). rds_ib_get_mr puede devolver ERR_PTR(-ENODEV) si el argumento de conexi\u00f3n (cuarto) es NULL. Por lo tanto, ret puede ser -ENODEV, en cuyo caso se ejecutar\u00e1 el c\u00f3digo en cuesti\u00f3n. Conclusi\u00f3n: * cp puede ser NULL en el punto donde este parche agrega una verificaci\u00f3n; este parche parece solucionar un posible error 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{\"title\": \"net/rds: fix possible cp null dereference\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"786854141057751bc08eb26f1b02e97c1631c8f4\", \"lessThan\": \"d275de8ea7be3a453629fddae41d4156762e814c\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"997efea2bf3a4adb96c306b9ad6a91442237bf5b\", \"lessThan\": \"bcd46782e2ec3825d10c1552fcb674d491cc09f9\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"9dfc15a10dfd44f8ff7f27488651cb5be6af83c2\", \"lessThan\": \"cfb786b03b03c5ff38882bee38525eb9987e4d14\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"b562ebe21ed9adcf42242797dd6cb75beef12bf0\", \"lessThan\": \"d49fac38479bfdaec52b3ea274d290c47a294029\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"998fd719e6d6468b930ac0c44552ea9ff8b07b80\", \"lessThan\": \"cbaac2e5488ed54833897264a5ffb2a341a9f196\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"2b505d05280739ce31d5708da840f42df827cb85\", \"lessThan\": \"92309bed3c5fbe2ccd4c45056efd42edbd06162d\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"c055fc00c07be1f0df7375ab0036cebd1106ed38\", \"lessThan\": \"6794090c742008c53b344b35b021d4a3093dc50a\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"c055fc00c07be1f0df7375ab0036cebd1106ed38\", \"lessThan\": \"62fc3357e079a07a22465b9b6ef71bb6ea75ee4b\", \"versionType\": \"git\"}], \"programFiles\": [\"net/rds/rdma.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.8\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"6.8\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.19.312\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.274\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.215\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.154\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.85\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.26\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.8.5\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.8.*\"}, {\"status\": \"unaffected\", \"version\": \"6.9\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/rds/rdma.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/d275de8ea7be3a453629fddae41d4156762e814c\"}, {\"url\": \"https://git.kernel.org/stable/c/bcd46782e2ec3825d10c1552fcb674d491cc09f9\"}, {\"url\": \"https://git.kernel.org/stable/c/cfb786b03b03c5ff38882bee38525eb9987e4d14\"}, {\"url\": \"https://git.kernel.org/stable/c/d49fac38479bfdaec52b3ea274d290c47a294029\"}, {\"url\": \"https://git.kernel.org/stable/c/cbaac2e5488ed54833897264a5ffb2a341a9f196\"}, {\"url\": \"https://git.kernel.org/stable/c/92309bed3c5fbe2ccd4c45056efd42edbd06162d\"}, {\"url\": \"https://git.kernel.org/stable/c/6794090c742008c53b344b35b021d4a3093dc50a\"}, {\"url\": \"https://git.kernel.org/stable/c/62fc3357e079a07a22465b9b6ef71bb6ea75ee4b\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet/rds: fix possible cp null dereference\\n\\ncp might be null, calling cp-\u003ecp_conn would produce null dereference\\n\\n[Simon Horman adds:]\\n\\nAnalysis:\\n\\n* cp is a parameter of __rds_rdma_map and is not reassigned.\\n\\n* The following call-sites pass a NULL cp argument to __rds_rdma_map()\\n\\n  - rds_get_mr()\\n  - rds_get_mr_for_dest\\n\\n* Prior to the code above, the following assumes that cp may be NULL\\n  (which is indicative, but could itself be unnecessary)\\n\\n\\ttrans_private = rs-\u003ers_transport-\u003eget_mr(\\n\\t\\tsg, nents, rs, \u0026mr-\u003er_key, cp ? cp-\u003ecp_conn : NULL,\\n\\t\\targs-\u003evec.addr, args-\u003evec.bytes,\\n\\t\\tneed_odp ? ODP_ZEROBASED : ODP_NOT_NEEDED);\\n\\n* The code modified by this patch is guarded by IS_ERR(trans_private),\\n  where trans_private is assigned as per the previous point in this analysis.\\n\\n  The only implementation of get_mr that I could locate is rds_ib_get_mr()\\n  which can return an ERR_PTR if the conn (4th) argument is NULL.\\n\\n* ret is set to PTR_ERR(trans_private).\\n  rds_ib_get_mr can return ERR_PTR(-ENODEV) if the conn (4th) argument is NULL.\\n  Thus ret may be -ENODEV in which case the code in question will execute.\\n\\nConclusion:\\n* cp may be NULL at the point where this patch adds a check;\\n  this patch does seem to address a possible bug\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.312\", \"versionStartIncluding\": \"4.19.310\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.274\", \"versionStartIncluding\": \"5.4.272\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.215\", \"versionStartIncluding\": \"5.10.213\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.154\", \"versionStartIncluding\": \"5.15.152\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.85\", \"versionStartIncluding\": \"6.1.82\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.26\", \"versionStartIncluding\": \"6.6.22\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.8.5\", \"versionStartIncluding\": \"6.8\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.9\", \"versionStartIncluding\": \"6.8\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"6.7.10\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T09:08:00.940Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-35902\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T09:08:00.940Z\", \"dateReserved\": \"2024-05-17T13:50:33.114Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-05-19T08:34:55.692Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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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.