FKIE_CVE-2025-40118
Vulnerability from fkie_nvd - Published: 2025-11-12 11:15 - Updated: 2026-07-30 06:24
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved:
scsi: pm80xx: Fix array-index-out-of-of-bounds on rmmod
Since commit f7b705c238d1 ("scsi: pm80xx: Set phy_attached to zero when
device is gone") UBSAN reports:
UBSAN: array-index-out-of-bounds in drivers/scsi/pm8001/pm8001_sas.c:786:17
index 28 is out of range for type 'pm8001_phy [16]'
on rmmod when using an expander.
For a direct attached device, attached_phy contains the local phy id.
For a device behind an expander, attached_phy contains the remote phy
id, not the local phy id.
I.e. while pm8001_ha will have pm8001_ha->chip->n_phy local phys, for a
device behind an expander, attached_phy can be much larger than
pm8001_ha->chip->n_phy (depending on the amount of phys of the
expander).
E.g. on my system pm8001_ha has 8 phys with phy ids 0-7. One of the
ports has an expander connected. The expander has 31 phys with phy ids
0-30.
The pm8001_ha->phy array only contains the phys of the HBA. It does not
contain the phys of the expander. Thus, it is wrong to use attached_phy
to index the pm8001_ha->phy array for a device behind an expander.
Thus, we can only clear phy_attached for devices that are directly
attached.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/scsi/pm8001/pm8001_sas.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "d94be0a6ae9ade706d4270e740bdb4f79953a7fc",
"status": "affected",
"version": "05b512879eab41faa515b67fa3896d0005e97909",
"versionType": "git"
},
{
"lessThan": "45acbf154befedd9bc135f5e031fe7855d1e6493",
"status": "affected",
"version": "bc2140c8136200b4437e1abc0fb659968cb9baab",
"versionType": "git"
},
{
"lessThan": "eef5ef400893f8e3dbb09342583be0cdc716d566",
"status": "affected",
"version": "1d8f9378cb4800c18e20d80ecd605b2b93e87a03",
"versionType": "git"
},
{
"lessThan": "9c671d4dbfbfb0d73cfdfb706afb36d9ad60a582",
"status": "affected",
"version": "30e482dfb8f27d22f518695d4bcb5e7f4c6cb08a",
"versionType": "git"
},
{
"lessThan": "e62251954a128a2d0fcbc19e5fa39e08935bb628",
"status": "affected",
"version": "a862d24e1fc3ab1b5e5f20878d2898cea346d0ec",
"versionType": "git"
},
{
"lessThan": "9326a1541e1b7ed3efdbab72061b82cf01c6477a",
"status": "affected",
"version": "0f9802f174227f553959422f844eeb9ba72467fe",
"versionType": "git"
},
{
"lessThan": "83ced3c206c292458e47c7fac54223abc7141585",
"status": "affected",
"version": "f7b705c238d1483f0a766e2b20010f176e5c0fb7",
"versionType": "git"
},
{
"lessThan": "251be2f6037fb7ab399f68cd7428ff274133d693",
"status": "affected",
"version": "f7b705c238d1483f0a766e2b20010f176e5c0fb7",
"versionType": "git"
},
{
"status": "affected",
"version": "722026c010fa75bcf9e2373aff1d7930a3d7e3cf",
"versionType": "git"
},
{
"lessThan": "5.4.301",
"status": "affected",
"version": "5.4.293",
"versionType": "semver"
},
{
"lessThan": "5.10.246",
"status": "affected",
"version": "5.10.237",
"versionType": "semver"
},
{
"lessThan": "5.15.195",
"status": "affected",
"version": "5.15.181",
"versionType": "semver"
},
{
"lessThan": "6.1.156",
"status": "affected",
"version": "6.1.136",
"versionType": "semver"
},
{
"lessThan": "6.6.112",
"status": "affected",
"version": "6.6.89",
"versionType": "semver"
},
{
"lessThan": "6.12.53",
"status": "affected",
"version": "6.12.26",
"versionType": "semver"
},
{
"lessThan": "6.15",
"status": "affected",
"version": "6.14.5",
"versionType": "semver"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/scsi/pm8001/pm8001_sas.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.15"
},
{
"lessThan": "6.15",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.301",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.246",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.195",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.156",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.112",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.53",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.17.*",
"status": "unaffected",
"version": "6.17.3",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.18",
"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\nscsi: pm80xx: Fix array-index-out-of-of-bounds on rmmod\n\nSince commit f7b705c238d1 (\"scsi: pm80xx: Set phy_attached to zero when\ndevice is gone\") UBSAN reports:\n\n UBSAN: array-index-out-of-bounds in drivers/scsi/pm8001/pm8001_sas.c:786:17\n index 28 is out of range for type \u0027pm8001_phy [16]\u0027\n\non rmmod when using an expander.\n\nFor a direct attached device, attached_phy contains the local phy id.\nFor a device behind an expander, attached_phy contains the remote phy\nid, not the local phy id.\n\nI.e. while pm8001_ha will have pm8001_ha-\u003echip-\u003en_phy local phys, for a\ndevice behind an expander, attached_phy can be much larger than\npm8001_ha-\u003echip-\u003en_phy (depending on the amount of phys of the\nexpander).\n\nE.g. on my system pm8001_ha has 8 phys with phy ids 0-7. One of the\nports has an expander connected. The expander has 31 phys with phy ids\n0-30.\n\nThe pm8001_ha-\u003ephy array only contains the phys of the HBA. It does not\ncontain the phys of the expander. Thus, it is wrong to use attached_phy\nto index the pm8001_ha-\u003ephy array for a device behind an expander.\n\nThus, we can only clear phy_attached for devices that are directly\nattached."
}
],
"id": "CVE-2025-40118",
"lastModified": "2026-07-30T06:24:12.473",
"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": "2025-11-12T11:15:41.117",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/251be2f6037fb7ab399f68cd7428ff274133d693"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/45acbf154befedd9bc135f5e031fe7855d1e6493"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/83ced3c206c292458e47c7fac54223abc7141585"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/9326a1541e1b7ed3efdbab72061b82cf01c6477a"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/9c671d4dbfbfb0d73cfdfb706afb36d9ad60a582"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/d94be0a6ae9ade706d4270e740bdb4f79953a7fc"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/e62251954a128a2d0fcbc19e5fa39e08935bb628"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/eef5ef400893f8e3dbb09342583be0cdc716d566"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Deferred"
}
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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.
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- Not confirmed: The user expressed doubt about the validity of the vulnerability.
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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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