FKIE_CVE-2024-39506
Vulnerability from fkie_nvd - Published: 2024-07-12 13:15 - Updated: 2026-06-17 07:42
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved:
liquidio: Adjust a NULL pointer handling path in lio_vf_rep_copy_packet
In lio_vf_rep_copy_packet() pg_info->page is compared to a NULL value,
but then it is unconditionally passed to skb_add_rx_frag() which looks
strange and could lead to null pointer dereference.
lio_vf_rep_copy_packet() call trace looks like:
octeon_droq_process_packets
octeon_droq_fast_process_packets
octeon_droq_dispatch_pkt
octeon_create_recv_info
...search in the dispatch_list...
->disp_fn(rdisp->rinfo, ...)
lio_vf_rep_pkt_recv(struct octeon_recv_info *recv_info, ...)
In this path there is no code which sets pg_info->page to NULL.
So this check looks unneeded and doesn't solve potential problem.
But I guess the author had reason to add a check and I have no such card
and can't do real test.
In addition, the code in the function liquidio_push_packet() in
liquidio/lio_core.c does exactly the same.
Based on this, I consider the most acceptable compromise solution to
adjust this issue by moving skb_add_rx_frag() into conditional scope.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | 6.10 | |
| linux | linux_kernel | 6.10 | |
| linux | linux_kernel | 6.10 |
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/net/ethernet/cavium/liquidio/lio_vf_rep.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "87d6bdc006f0cbf297a3b2ad6e40ede4c3ee5dc2",
"status": "affected",
"version": "1f233f327913f3dee0602cba9c64df1903772b55",
"versionType": "git"
},
{
"lessThan": "dcc7440f32c7a26b067aff6e7d931ec593024a79",
"status": "affected",
"version": "1f233f327913f3dee0602cba9c64df1903772b55",
"versionType": "git"
},
{
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"status": "affected",
"version": "1f233f327913f3dee0602cba9c64df1903772b55",
"versionType": "git"
},
{
"lessThan": "a86490a3712cc513113440a606a0e77130abd47c",
"status": "affected",
"version": "1f233f327913f3dee0602cba9c64df1903772b55",
"versionType": "git"
},
{
"lessThan": "f1ab15a09492a5ae8ab1e2c35ba2cf9e150d25ee",
"status": "affected",
"version": "1f233f327913f3dee0602cba9c64df1903772b55",
"versionType": "git"
},
{
"lessThan": "fd2b613bc4c508e55c1221c6595bb889812a4fea",
"status": "affected",
"version": "1f233f327913f3dee0602cba9c64df1903772b55",
"versionType": "git"
},
{
"lessThan": "a6f4d0ec170a46b5f453cacf55dff5989b42bbfa",
"status": "affected",
"version": "1f233f327913f3dee0602cba9c64df1903772b55",
"versionType": "git"
},
{
"lessThan": "c44711b78608c98a3e6b49ce91678cd0917d5349",
"status": "affected",
"version": "1f233f327913f3dee0602cba9c64df1903772b55",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/net/ethernet/cavium/liquidio/lio_vf_rep.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "4.15"
},
{
"lessThan": "4.15",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"version": "4.19.317",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.279",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.221",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.162",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.95",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.35",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.9.*",
"status": "unaffected",
"version": "6.9.6",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.10",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "CA0C2003-8954-406C-83EB-454FDEC08184",
"versionEndExcluding": "4.19.317",
"versionStartIncluding": "4.15",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "659E1520-6345-41AF-B893-A7C0647585A0",
"versionEndExcluding": "5.10.221",
"versionStartIncluding": "5.5",
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},
{
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},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "D435765D-2766-44F5-B319-F713A13E35CE",
"versionEndExcluding": "6.1.95",
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},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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{
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"versionEndExcluding": "6.9.6",
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},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.10:rc1:*:*:*:*:*:*",
"matchCriteriaId": "2EBB4392-5FA6-4DA9-9772-8F9C750109FA",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.10:rc2:*:*:*:*:*:*",
"matchCriteriaId": "331C2F14-12C7-45D5-893D-8C52EE38EA10",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.10:rc3:*:*:*:*:*:*",
"matchCriteriaId": "3173713D-909A-4DD3-9DD4-1E171EB057EE",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nliquidio: Adjust a NULL pointer handling path in lio_vf_rep_copy_packet\n\nIn lio_vf_rep_copy_packet() pg_info-\u003epage is compared to a NULL value,\nbut then it is unconditionally passed to skb_add_rx_frag() which looks\nstrange and could lead to null pointer dereference.\n\nlio_vf_rep_copy_packet() call trace looks like:\n\tocteon_droq_process_packets\n\t octeon_droq_fast_process_packets\n\t octeon_droq_dispatch_pkt\n\t octeon_create_recv_info\n\t ...search in the dispatch_list...\n\t -\u003edisp_fn(rdisp-\u003erinfo, ...)\n\t lio_vf_rep_pkt_recv(struct octeon_recv_info *recv_info, ...)\nIn this path there is no code which sets pg_info-\u003epage to NULL.\nSo this check looks unneeded and doesn\u0027t solve potential problem.\nBut I guess the author had reason to add a check and I have no such card\nand can\u0027t do real test.\nIn addition, the code in the function liquidio_push_packet() in\nliquidio/lio_core.c does exactly the same.\n\nBased on this, I consider the most acceptable compromise solution to\nadjust this issue by moving skb_add_rx_frag() into conditional scope.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: liquidio: ajusta una ruta de manejo de puntero NULL en lio_vf_rep_copy_packet En lio_vf_rep_copy_packet() pg_info-\u0026gt;page se compara con un valor NULL, pero luego se pasa incondicionalmente a skb_add_rx_frag() lo cual parece extra\u00f1o y podr\u00eda provocar una desreferencia del puntero nulo. El seguimiento de llamadas de lio_vf_rep_copy_packet() se ve as\u00ed: octeon_droq_process_packets octeon_droq_fast_process_packets octeon_droq_dispatch_pkt octeon_create_recv_info ...buscar en la lista de despacho... -\u0026gt;disp_fn(rdisp-\u0026gt;rinfo, ...) lio_vf_rep_pkt_recv(struct octeon_recv_info *rec v_info, ...) En este camino hay No hay ning\u00fan c\u00f3digo que establezca pg_info-\u0026gt;page en NULL. Por lo tanto, esta verificaci\u00f3n parece innecesaria y no resuelve el problema potencial. Pero supongo que el autor ten\u00eda motivos para agregar un cheque y yo no tengo esa tarjeta y no puedo hacer una prueba real. Adem\u00e1s, el c\u00f3digo de la funci\u00f3n liquidio_push_packet() en liquidio/lio_core.c hace exactamente lo mismo. En base a esto, considero la soluci\u00f3n de compromiso m\u00e1s aceptable para ajustar este problema moviendo skb_add_rx_frag() al alcance condicional. Encontrado por el Centro de verificaci\u00f3n de Linux (linuxtesting.org) con SVACE."
}
],
"id": "CVE-2024-39506",
"lastModified": "2026-06-17T07:42:04.153",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2024-39506",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-09-10T17:06:54.651829Z",
"version": "2.0.3"
}
}
]
},
"published": "2024-07-12T13:15:12.957",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
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{
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"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Modified",
"weaknesses": [
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"description": [
{
"lang": "en",
"value": "CWE-476"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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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.
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