FKIE_CVE-2023-54156
Vulnerability from fkie_nvd - Published: 2025-12-24 13:16 - Updated: 2026-08-04 11:16
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved:
sfc: fix crash when reading stats while NIC is resetting
efx_net_stats() (.ndo_get_stats64) can be called during an ethtool
selftest, during which time nic_data->mc_stats is NULL as the NIC has
been fini'd. In this case do not attempt to fetch the latest stats
from the hardware, else we will crash on a NULL dereference:
BUG: kernel NULL pointer dereference, address: 0000000000000038
RIP efx_nic_update_stats
abridged calltrace:
efx_ef10_update_stats_pf
efx_net_stats
dev_get_stats
dev_seq_printf_stats
Skipping the read is safe, we will simply give out stale stats.
To ensure that the free in efx_ef10_fini_nic() does not race against
efx_ef10_update_stats_pf(), which could cause a TOCTTOU bug, take the
efx->stats_lock in fini_nic (it is already held across update_stats).
References
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/net/ethernet/sfc/ef10.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "cb1aa7cc562cab6a87ea33574c8c65f2d2fd7aeb",
"status": "affected",
"version": "d3142c193dca9a2f6878f4128ce1aaf221bb3f99",
"versionType": "git"
},
{
"lessThan": "91f4ef204e731565afdc6c2a7fcf509a3fd6fd67",
"status": "affected",
"version": "d3142c193dca9a2f6878f4128ce1aaf221bb3f99",
"versionType": "git"
},
{
"lessThan": "446f5567934331923d0aec4ce045e4ecb0174aae",
"status": "affected",
"version": "d3142c193dca9a2f6878f4128ce1aaf221bb3f99",
"versionType": "git"
},
{
"lessThan": "470152d76b3ed107d172ea46acc4bfa941f20b4b",
"status": "affected",
"version": "d3142c193dca9a2f6878f4128ce1aaf221bb3f99",
"versionType": "git"
},
{
"lessThan": "aba32b4c58112960c0c708703ca6b44dc8944082",
"status": "affected",
"version": "d3142c193dca9a2f6878f4128ce1aaf221bb3f99",
"versionType": "git"
},
{
"lessThan": "d1b355438b8325a486f087e506d412c4e852f37b",
"status": "affected",
"version": "d3142c193dca9a2f6878f4128ce1aaf221bb3f99",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/net/ethernet/sfc/ef10.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.9"
},
{
"lessThan": "5.9",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.188",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.121",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.39",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.3.*",
"status": "unaffected",
"version": "6.3.13",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.4.*",
"status": "unaffected",
"version": "6.4.4",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.5",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsfc: fix crash when reading stats while NIC is resetting\n\nefx_net_stats() (.ndo_get_stats64) can be called during an ethtool\n selftest, during which time nic_data-\u003emc_stats is NULL as the NIC has\n been fini\u0027d. In this case do not attempt to fetch the latest stats\n from the hardware, else we will crash on a NULL dereference:\n BUG: kernel NULL pointer dereference, address: 0000000000000038\n RIP efx_nic_update_stats\n abridged calltrace:\n efx_ef10_update_stats_pf\n efx_net_stats\n dev_get_stats\n dev_seq_printf_stats\nSkipping the read is safe, we will simply give out stale stats.\nTo ensure that the free in efx_ef10_fini_nic() does not race against\n efx_ef10_update_stats_pf(), which could cause a TOCTTOU bug, take the\n efx-\u003estats_lock in fini_nic (it is already held across update_stats)."
}
],
"id": "CVE-2023-54156",
"lastModified": "2026-08-04T11:16:34.440",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9,
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"type": "Secondary"
}
]
},
"published": "2025-12-24T13:16:17.630",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/446f5567934331923d0aec4ce045e4ecb0174aae"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/470152d76b3ed107d172ea46acc4bfa941f20b4b"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/91f4ef204e731565afdc6c2a7fcf509a3fd6fd67"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/aba32b4c58112960c0c708703ca6b44dc8944082"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/cb1aa7cc562cab6a87ea33574c8c65f2d2fd7aeb"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/d1b355438b8325a486f087e506d412c4e852f37b"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Deferred"
}
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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.
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- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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- 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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