CVE-2025-68338 (GCVE-0-2025-68338)
Vulnerability from cvelistv5 – Published: 2025-12-23 13:58 – Updated: 2026-05-11 21:51
VLAI
EPSS
VEX
Title
net: dsa: microchip: Don't free uninitialized ksz_irq
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: dsa: microchip: Don't free uninitialized ksz_irq
If something goes wrong at setup, ksz_irq_free() can be called on
uninitialized ksz_irq (for example when ksz_ptp_irq_setup() fails). It
leads to freeing uninitialized IRQ numbers and/or domains.
Use dsa_switch_for_each_user_port_continue_reverse() in the error path
to iterate only over the fully initialized ports.
Severity
No CVSS data available.
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
cc13ab18b201ab630f03511060ba289b70052959 , < 9428654c827fa8d38b898135d26d39ee2d544246
(git)
Affected: cc13ab18b201ab630f03511060ba289b70052959 , < 32abbcf4379a0f851d7eb9d4389e7bf5c64bf6c0 (git) Affected: cc13ab18b201ab630f03511060ba289b70052959 , < 25b62cc5b22c45face094ae3e8717258e46d1d19 (git) |
guessed | |
| Linux | Linux |
Affected:
6.3
Unaffected: 0 , < 6.3 (semver) Unaffected: 6.12.61 , ≤ 6.12.* (semver) Unaffected: 6.17.11 , ≤ 6.17.* (semver) Unaffected: 6.18 , ≤ * (original_commit_for_fix) |
guessed |
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/net/dsa/microchip/ksz_common.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "9428654c827fa8d38b898135d26d39ee2d544246",
"status": "affected",
"version": "cc13ab18b201ab630f03511060ba289b70052959",
"versionType": "git"
},
{
"lessThan": "32abbcf4379a0f851d7eb9d4389e7bf5c64bf6c0",
"status": "affected",
"version": "cc13ab18b201ab630f03511060ba289b70052959",
"versionType": "git"
},
{
"lessThan": "25b62cc5b22c45face094ae3e8717258e46d1d19",
"status": "affected",
"version": "cc13ab18b201ab630f03511060ba289b70052959",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/net/dsa/microchip/ksz_common.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.3"
},
{
"lessThan": "6.3",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.61",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.17.*",
"status": "unaffected",
"version": "6.17.11",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.18",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.61",
"versionStartIncluding": "6.3",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.17.11",
"versionStartIncluding": "6.3",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.18",
"versionStartIncluding": "6.3",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: dsa: microchip: Don\u0027t free uninitialized ksz_irq\n\nIf something goes wrong at setup, ksz_irq_free() can be called on\nuninitialized ksz_irq (for example when ksz_ptp_irq_setup() fails). It\nleads to freeing uninitialized IRQ numbers and/or domains.\n\nUse dsa_switch_for_each_user_port_continue_reverse() in the error path\nto iterate only over the fully initialized ports."
}
],
"providerMetadata": {
"dateUpdated": "2026-05-11T21:51:15.675Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/9428654c827fa8d38b898135d26d39ee2d544246"
},
{
"url": "https://git.kernel.org/stable/c/32abbcf4379a0f851d7eb9d4389e7bf5c64bf6c0"
},
{
"url": "https://git.kernel.org/stable/c/25b62cc5b22c45face094ae3e8717258e46d1d19"
}
],
"title": "net: dsa: microchip: Don\u0027t free uninitialized ksz_irq",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-68338",
"datePublished": "2025-12-23T13:58:24.121Z",
"dateReserved": "2025-12-16T14:48:05.297Z",
"dateUpdated": "2026-05-11T21:51:15.675Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2025-68338",
"date": "2026-09-19",
"epss": "0.00184",
"percentile": "0.08236"
},
"microsoft_vex": {
"current_release_date": "2026-09-19T01:54:29.000Z",
"cve": "CVE-2025-68338",
"id": "msrc_CVE-2025-68338",
"initial_release_date": "2025-12-24T01:04:35.000Z",
"product_status:known_affected": "15",
"source": "Microsoft CSAF VEX",
"status": "final",
"title": "net: dsa: microchip: Don\u0027t free uninitialized ksz_irq",
"url": "https://msrc.microsoft.com/csaf/vex/2025/msrc_cve-2025-68338.json",
"version": "15"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/net/dsa/microchip/ksz_common.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "9428654c827fa8d38b898135d26d39ee2d544246",
"status": "affected",
"version": "cc13ab18b201ab630f03511060ba289b70052959",
"versionType": "git"
},
{
"lessThan": "32abbcf4379a0f851d7eb9d4389e7bf5c64bf6c0",
"status": "affected",
"version": "cc13ab18b201ab630f03511060ba289b70052959",
"versionType": "git"
},
{
"lessThan": "25b62cc5b22c45face094ae3e8717258e46d1d19",
"status": "affected",
"version": "cc13ab18b201ab630f03511060ba289b70052959",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/net/dsa/microchip/ksz_common.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.3"
},
{
"lessThan": "6.3",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.61",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.17.*",
"status": "unaffected",
"version": "6.17.11",
"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\nnet: dsa: microchip: Don\u0027t free uninitialized ksz_irq\n\nIf something goes wrong at setup, ksz_irq_free() can be called on\nuninitialized ksz_irq (for example when ksz_ptp_irq_setup() fails). It\nleads to freeing uninitialized IRQ numbers and/or domains.\n\nUse dsa_switch_for_each_user_port_continue_reverse() in the error path\nto iterate only over the fully initialized ports."
}
],
"id": "CVE-2025-68338",
"lastModified": "2026-06-17T09:58:57.700",
"metrics": {},
"published": "2025-12-23T14:16:40.373",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/25b62cc5b22c45face094ae3e8717258e46d1d19"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/32abbcf4379a0f851d7eb9d4389e7bf5c64bf6c0"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/9428654c827fa8d38b898135d26d39ee2d544246"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Deferred"
}
},
"redhat_vex": {
"aggregate_severity": "None",
"current_release_date": "2026-06-30T10:15:58+00:00",
"cve": "CVE-2025-68338",
"id": "CVE-2025-68338",
"initial_release_date": "2025-12-23T00:00:00+00:00",
"product_status:known_not_affected": "274",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: net: dsa: microchip: Don\u0027t free uninitialized ksz_irq",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-68338.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-08-30T17:15:31Z",
"cve": "CVE-2025-68338",
"id": "CVE-2025-68338",
"initial_release_date": "2025-12-24T00:24:09Z",
"product_status:known_not_affected": "560",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2025-68338",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-68338.json",
"version": "14"
}
}
}
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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
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