CVE-2026-46301 (GCVE-0-2026-46301)
Vulnerability from cvelistv5 – Published: 2026-06-08 15:46 – Updated: 2026-06-14 18:07
VLAI
EPSS
VEX
Title
spi: topcliff-pch: fix use-after-free on unbind
Summary
In the Linux kernel, the following vulnerability has been resolved:
spi: topcliff-pch: fix use-after-free on unbind
Give the driver a chance to flush its queue before releasing the DMA
buffers on driver unbind
Severity
7.8 (High)
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
c37f3c2749b53225d36faa5c583203c5f12ae15b , < 43334836b907adc21eab3079d2e6b26754468786
(git)
Affected: c37f3c2749b53225d36faa5c583203c5f12ae15b , < 36e58c436d2c2a797800427dc04d74ffd8b6ce1c (git) Affected: c37f3c2749b53225d36faa5c583203c5f12ae15b , < 4ca90deeca1c7dd72c1c380ba8143565516def2d (git) Affected: c37f3c2749b53225d36faa5c583203c5f12ae15b , < d79e92161b65832e0b8cad5f3d84d17e5cd7a970 (git) Affected: c37f3c2749b53225d36faa5c583203c5f12ae15b , < 8822980668c96b5aa251c1e2daec1873262b8f3f (git) Affected: c37f3c2749b53225d36faa5c583203c5f12ae15b , < d50ef3553acbacce6f2843304d41d06dca358bb6 (git) Affected: c37f3c2749b53225d36faa5c583203c5f12ae15b , < 0e8e57f9737ea257634db1d152fc430a0788a3e1 (git) Affected: c37f3c2749b53225d36faa5c583203c5f12ae15b , < 9d72732fe70c11424bc90ed466c7ccfa58b42a9a (git) |
guessed | |
| Linux | Linux |
Affected:
3.1
Unaffected: 0 , < 3.1 (semver) Unaffected: 5.10.258 , ≤ 5.10.* (semver) Unaffected: 5.15.209 , ≤ 5.15.* (semver) Unaffected: 6.1.175 , ≤ 6.1.* (semver) Unaffected: 6.6.140 , ≤ 6.6.* (semver) Unaffected: 6.12.88 , ≤ 6.12.* (semver) Unaffected: 6.18.30 , ≤ 6.18.* (semver) Unaffected: 7.0.7 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix) |
guessed |
{
"containers": {
"cna": {
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{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/spi/spi-topcliff-pch.c"
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},
{
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},
{
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"version": "5.10.258",
"versionType": "semver"
},
{
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"version": "5.15.209",
"versionType": "semver"
},
{
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"status": "unaffected",
"version": "6.1.175",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.140",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.88",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.30",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.0.*",
"status": "unaffected",
"version": "7.0.7",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.1",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
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},
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{
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},
{
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},
{
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"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: topcliff-pch: fix use-after-free on unbind\n\nGive the driver a chance to flush its queue before releasing the DMA\nbuffers on driver unbind"
}
],
"providerMetadata": {
"dateUpdated": "2026-06-14T18:07:38.861Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/43334836b907adc21eab3079d2e6b26754468786"
},
{
"url": "https://git.kernel.org/stable/c/36e58c436d2c2a797800427dc04d74ffd8b6ce1c"
},
{
"url": "https://git.kernel.org/stable/c/4ca90deeca1c7dd72c1c380ba8143565516def2d"
},
{
"url": "https://git.kernel.org/stable/c/d79e92161b65832e0b8cad5f3d84d17e5cd7a970"
},
{
"url": "https://git.kernel.org/stable/c/8822980668c96b5aa251c1e2daec1873262b8f3f"
},
{
"url": "https://git.kernel.org/stable/c/d50ef3553acbacce6f2843304d41d06dca358bb6"
},
{
"url": "https://git.kernel.org/stable/c/0e8e57f9737ea257634db1d152fc430a0788a3e1"
},
{
"url": "https://git.kernel.org/stable/c/9d72732fe70c11424bc90ed466c7ccfa58b42a9a"
}
],
"title": "spi: topcliff-pch: fix use-after-free on unbind",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-46301",
"datePublished": "2026-06-08T15:46:28.004Z",
"dateReserved": "2026-05-13T15:03:33.111Z",
"dateUpdated": "2026-06-14T18:07:38.861Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-46301",
"date": "2026-09-15",
"epss": "0.00117",
"percentile": "0.01874"
},
"microsoft_vex": {
"current_release_date": "2026-06-23T14:44:10.000Z",
"cve": "CVE-2026-46301",
"id": "msrc_CVE-2026-46301",
"initial_release_date": "2026-06-02T00:00:00.000Z",
"product_status:known_not_affected": "1",
"source": "Microsoft CSAF VEX",
"status": "final",
"title": "spi: topcliff-pch: fix use-after-free on unbind",
"url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-46301.json",
"version": "3"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2026-46301\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-06-08T17:16:48.560\",\"lastModified\":\"2026-07-23T08:10:00.137\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nspi: topcliff-pch: fix use-after-free on unbind\\n\\nGive the driver a chance to flush its queue before releasing the DMA\\nbuffers on driver unbind\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\\n\\nspi: topcliff-pch: correcci\u00f3n de uso despu\u00e9s de liberaci\u00f3n al desvincular\\n\\nDar al controlador una oportunidad de vaciar su cola antes de liberar los b\u00faferes DMA al desvincular el controlador.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/spi/spi-topcliff-pch.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"c37f3c2749b53225d36faa5c583203c5f12ae15b\",\"lessThan\":\"43334836b907adc21eab3079d2e6b26754468786\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c37f3c2749b53225d36faa5c583203c5f12ae15b\",\"lessThan\":\"36e58c436d2c2a797800427dc04d74ffd8b6ce1c\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c37f3c2749b53225d36faa5c583203c5f12ae15b\",\"lessThan\":\"4ca90deeca1c7dd72c1c380ba8143565516def2d\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c37f3c2749b53225d36faa5c583203c5f12ae15b\",\"lessThan\":\"d79e92161b65832e0b8cad5f3d84d17e5cd7a970\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c37f3c2749b53225d36faa5c583203c5f12ae15b\",\"lessThan\":\"8822980668c96b5aa251c1e2daec1873262b8f3f\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c37f3c2749b53225d36faa5c583203c5f12ae15b\",\"lessThan\":\"d50ef3553acbacce6f2843304d41d06dca358bb6\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c37f3c2749b53225d36faa5c583203c5f12ae15b\",\"lessThan\":\"0e8e57f9737ea257634db1d152fc430a0788a3e1\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c37f3c2749b53225d36faa5c583203c5f12ae15b\",\"lessThan\":\"9d72732fe70c11424bc90ed466c7ccfa58b42a9a\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/spi/spi-topcliff-pch.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"3.1\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"3.1\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.258\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.209\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.175\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.140\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.88\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.30\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.0.7\",\"lessThanOrEqual\":\"7.0.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.1\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"3.1\",\"versionEndExcluding\":\"5.10.258\",\"matchCriteriaId\":\"B5F925AF-0571-45EB-B3C7-3046B450381F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.209\",\"matchCriteriaId\":\"919C10A9-7951-4A74-BADD-C135A0A8D8B4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.175\",\"matchCriteriaId\":\"92385813-D91D-480D-83A1-F423D2CBB2BA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.140\",\"matchCriteriaId\":\"A1A92866-F406-43B5-B2D1-CFC274753E9D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.12.88\",\"matchCriteriaId\":\"5AFBE0EC-CCDF-4207-AE92-ABF958125CA4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.13\",\"versionEndExcluding\":\"6.18.30\",\"matchCriteriaId\":\"BF39AE08-AE6D-4410-8FBE-76F6BF5BF55B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.19\",\"versionEndExcluding\":\"7.0.7\",\"matchCriteriaId\":\"D0893CA7-9AE6-4DFE-AC75-48967D73AD8E\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0e8e57f9737ea257634db1d152fc430a0788a3e1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/36e58c436d2c2a797800427dc04d74ffd8b6ce1c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/43334836b907adc21eab3079d2e6b26754468786\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/4ca90deeca1c7dd72c1c380ba8143565516def2d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/8822980668c96b5aa251c1e2daec1873262b8f3f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/9d72732fe70c11424bc90ed466c7ccfa58b42a9a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/d50ef3553acbacce6f2843304d41d06dca358bb6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/d79e92161b65832e0b8cad5f3d84d17e5cd7a970\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
"redhat_vex": {
"aggregate_severity": "None",
"current_release_date": "2026-06-28T07:42:09+00:00",
"cve": "CVE-2026-46301",
"id": "CVE-2026-46301",
"initial_release_date": "2026-06-08T00:00:00+00:00",
"product_status:known_not_affected": "274",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: spi: topcliff-pch: fix use-after-free on unbind",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46301.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-09-11T01:10:11Z",
"cve": "CVE-2026-46301",
"id": "CVE-2026-46301",
"initial_release_date": "2026-06-09T02:20:46Z",
"product_status:first_fixed": "2",
"product_status:known_affected": "366",
"product_status:known_not_affected": "21",
"product_status:recommended": "149",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2026-46301",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-46301.json",
"version": "8"
}
}
}
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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.
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.
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