CVE-2026-72308 (GCVE-0-2026-72308)
Vulnerability from cvelistv5 – Published: 2026-08-15 05:55 – Updated: 2026-08-23 12:47
VLAI
EPSS
VEX
Title
mlxsw: fix refcount leak in mlxsw_sp_port_lag_join()
Summary
In the Linux kernel, the following vulnerability has been resolved:
mlxsw: fix refcount leak in mlxsw_sp_port_lag_join()
When mlxsw_sp_port_lag_index_get() fails, mlxsw_sp_port_lag_join()
returns an error without releasing the lag reference obtained by
the earlier mlxsw_sp_lag_get(). All other error paths in the
function jump to the cleanup label that ends with
mlxsw_sp_lag_put(), so this is a single missed release.
Fix the leak by replacing the bare 'return err' with a goto to the
existing error cleanup label, which will drop the reference safely.
Severity
No CVSS data available.
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
0d65fc13042fce6a2d6de58ff0dc9531e8523c07 , < 3fbeaa8ecd144ad593f9fa1ab4b40a780ad3700b
(git)
Affected: 0d65fc13042fce6a2d6de58ff0dc9531e8523c07 , < 99ff5b0083eae6f774360c4ea6874604e6c9b553 (git) Affected: 0d65fc13042fce6a2d6de58ff0dc9531e8523c07 , < 9bf2d6eea26a226f8ebab7baea6f2b018f914560 (git) Affected: 0d65fc13042fce6a2d6de58ff0dc9531e8523c07 , < 8b3350eacd9df0597bfe36a594df7b9def0b3edf (git) Affected: 0d65fc13042fce6a2d6de58ff0dc9531e8523c07 , < 1cf8a1af42b1f12a30b7abd34fe4fc23b3170e7e (git) Affected: 0d65fc13042fce6a2d6de58ff0dc9531e8523c07 , < 2d8b3c3e129973a51ae924bdcf6993a76b828814 (git) Affected: 0d65fc13042fce6a2d6de58ff0dc9531e8523c07 , < cab468c3c03f4bcd7530ce2783a4140da14efb7b (git) Affected: 0d65fc13042fce6a2d6de58ff0dc9531e8523c07 , < 41c8c1d65b32beacd8d916a22457b4f6e47f45af (git) |
|
| Linux | Linux |
Affected:
4.5
Unaffected: 0 , < 4.5 (semver) Unaffected: 5.10.266 , ≤ 5.10.* (semver) Unaffected: 5.15.217 , ≤ 5.15.* (semver) Unaffected: 6.1.184 , ≤ 6.1.* (semver) Unaffected: 6.6.145 , ≤ 6.6.* (semver) Unaffected: 6.12.97 , ≤ 6.12.* (semver) Unaffected: 6.18.40 , ≤ 6.18.* (semver) Unaffected: 7.1.5 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix) |
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/net/ethernet/mellanox/mlxsw/spectrum.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "3fbeaa8ecd144ad593f9fa1ab4b40a780ad3700b",
"status": "affected",
"version": "0d65fc13042fce6a2d6de58ff0dc9531e8523c07",
"versionType": "git"
},
{
"lessThan": "99ff5b0083eae6f774360c4ea6874604e6c9b553",
"status": "affected",
"version": "0d65fc13042fce6a2d6de58ff0dc9531e8523c07",
"versionType": "git"
},
{
"lessThan": "9bf2d6eea26a226f8ebab7baea6f2b018f914560",
"status": "affected",
"version": "0d65fc13042fce6a2d6de58ff0dc9531e8523c07",
"versionType": "git"
},
{
"lessThan": "8b3350eacd9df0597bfe36a594df7b9def0b3edf",
"status": "affected",
"version": "0d65fc13042fce6a2d6de58ff0dc9531e8523c07",
"versionType": "git"
},
{
"lessThan": "1cf8a1af42b1f12a30b7abd34fe4fc23b3170e7e",
"status": "affected",
"version": "0d65fc13042fce6a2d6de58ff0dc9531e8523c07",
"versionType": "git"
},
{
"lessThan": "2d8b3c3e129973a51ae924bdcf6993a76b828814",
"status": "affected",
"version": "0d65fc13042fce6a2d6de58ff0dc9531e8523c07",
"versionType": "git"
},
{
"lessThan": "cab468c3c03f4bcd7530ce2783a4140da14efb7b",
"status": "affected",
"version": "0d65fc13042fce6a2d6de58ff0dc9531e8523c07",
"versionType": "git"
},
{
"lessThan": "41c8c1d65b32beacd8d916a22457b4f6e47f45af",
"status": "affected",
"version": "0d65fc13042fce6a2d6de58ff0dc9531e8523c07",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/net/ethernet/mellanox/mlxsw/spectrum.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "4.5"
},
{
"lessThan": "4.5",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.266",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.217",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.184",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.145",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.97",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.40",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.1.*",
"status": "unaffected",
"version": "7.1.5",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.266",
"versionStartIncluding": "4.5",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.217",
"versionStartIncluding": "4.5",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.184",
"versionStartIncluding": "4.5",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.145",
"versionStartIncluding": "4.5",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.97",
"versionStartIncluding": "4.5",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.18.40",
"versionStartIncluding": "4.5",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.1.5",
"versionStartIncluding": "4.5",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.2",
"versionStartIncluding": "4.5",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmlxsw: fix refcount leak in mlxsw_sp_port_lag_join()\n\nWhen mlxsw_sp_port_lag_index_get() fails, mlxsw_sp_port_lag_join()\nreturns an error without releasing the lag reference obtained by\nthe earlier mlxsw_sp_lag_get(). All other error paths in the\nfunction jump to the cleanup label that ends with\nmlxsw_sp_lag_put(), so this is a single missed release.\n\nFix the leak by replacing the bare \u0027return err\u0027 with a goto to the\nexisting error cleanup label, which will drop the reference safely."
}
],
"providerMetadata": {
"dateUpdated": "2026-08-23T12:47:14.564Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/3fbeaa8ecd144ad593f9fa1ab4b40a780ad3700b"
},
{
"url": "https://git.kernel.org/stable/c/99ff5b0083eae6f774360c4ea6874604e6c9b553"
},
{
"url": "https://git.kernel.org/stable/c/9bf2d6eea26a226f8ebab7baea6f2b018f914560"
},
{
"url": "https://git.kernel.org/stable/c/8b3350eacd9df0597bfe36a594df7b9def0b3edf"
},
{
"url": "https://git.kernel.org/stable/c/1cf8a1af42b1f12a30b7abd34fe4fc23b3170e7e"
},
{
"url": "https://git.kernel.org/stable/c/2d8b3c3e129973a51ae924bdcf6993a76b828814"
},
{
"url": "https://git.kernel.org/stable/c/cab468c3c03f4bcd7530ce2783a4140da14efb7b"
},
{
"url": "https://git.kernel.org/stable/c/41c8c1d65b32beacd8d916a22457b4f6e47f45af"
}
],
"title": "mlxsw: fix refcount leak in mlxsw_sp_port_lag_join()",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-72308",
"datePublished": "2026-08-15T05:55:25.260Z",
"dateReserved": "2026-08-09T03:40:39.918Z",
"dateUpdated": "2026-08-23T12:47:14.564Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-72308",
"date": "2026-10-14",
"epss": "0.0022",
"percentile": "0.11618"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/net/ethernet/mellanox/mlxsw/spectrum.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "3fbeaa8ecd144ad593f9fa1ab4b40a780ad3700b",
"status": "affected",
"version": "0d65fc13042fce6a2d6de58ff0dc9531e8523c07",
"versionType": "git"
},
{
"lessThan": "99ff5b0083eae6f774360c4ea6874604e6c9b553",
"status": "affected",
"version": "0d65fc13042fce6a2d6de58ff0dc9531e8523c07",
"versionType": "git"
},
{
"lessThan": "9bf2d6eea26a226f8ebab7baea6f2b018f914560",
"status": "affected",
"version": "0d65fc13042fce6a2d6de58ff0dc9531e8523c07",
"versionType": "git"
},
{
"lessThan": "8b3350eacd9df0597bfe36a594df7b9def0b3edf",
"status": "affected",
"version": "0d65fc13042fce6a2d6de58ff0dc9531e8523c07",
"versionType": "git"
},
{
"lessThan": "1cf8a1af42b1f12a30b7abd34fe4fc23b3170e7e",
"status": "affected",
"version": "0d65fc13042fce6a2d6de58ff0dc9531e8523c07",
"versionType": "git"
},
{
"lessThan": "2d8b3c3e129973a51ae924bdcf6993a76b828814",
"status": "affected",
"version": "0d65fc13042fce6a2d6de58ff0dc9531e8523c07",
"versionType": "git"
},
{
"lessThan": "cab468c3c03f4bcd7530ce2783a4140da14efb7b",
"status": "affected",
"version": "0d65fc13042fce6a2d6de58ff0dc9531e8523c07",
"versionType": "git"
},
{
"lessThan": "41c8c1d65b32beacd8d916a22457b4f6e47f45af",
"status": "affected",
"version": "0d65fc13042fce6a2d6de58ff0dc9531e8523c07",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/net/ethernet/mellanox/mlxsw/spectrum.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "4.5"
},
{
"lessThan": "4.5",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.266",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.217",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.184",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.145",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.97",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.40",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.1.*",
"status": "unaffected",
"version": "7.1.5",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.2",
"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\nmlxsw: fix refcount leak in mlxsw_sp_port_lag_join()\n\nWhen mlxsw_sp_port_lag_index_get() fails, mlxsw_sp_port_lag_join()\nreturns an error without releasing the lag reference obtained by\nthe earlier mlxsw_sp_lag_get(). All other error paths in the\nfunction jump to the cleanup label that ends with\nmlxsw_sp_lag_put(), so this is a single missed release.\n\nFix the leak by replacing the bare \u0027return err\u0027 with a goto to the\nexisting error cleanup label, which will drop the reference safely."
}
],
"id": "CVE-2026-72308",
"lastModified": "2026-08-23T13:16:43.340",
"metrics": {},
"published": "2026-08-15T06:22:03.570",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/1cf8a1af42b1f12a30b7abd34fe4fc23b3170e7e"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/2d8b3c3e129973a51ae924bdcf6993a76b828814"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/3fbeaa8ecd144ad593f9fa1ab4b40a780ad3700b"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/41c8c1d65b32beacd8d916a22457b4f6e47f45af"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/8b3350eacd9df0597bfe36a594df7b9def0b3edf"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/99ff5b0083eae6f774360c4ea6874604e6c9b553"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/9bf2d6eea26a226f8ebab7baea6f2b018f914560"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/cab468c3c03f4bcd7530ce2783a4140da14efb7b"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Received"
}
},
"redhat_vex": {
"aggregate_severity": "Low",
"current_release_date": "2026-08-19T05:25:28+00:00",
"cve": "CVE-2026-72308",
"id": "CVE-2026-72308",
"initial_release_date": "2026-08-15T00:00:00+00:00",
"product_status:known_affected": "274",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: mlxsw: fix refcount leak in mlxsw_sp_port_lag_join()",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-72308.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-10-03T00:28:46Z",
"cve": "CVE-2026-72308",
"id": "CVE-2026-72308",
"initial_release_date": "2026-08-28T00:59:39Z",
"product_status:known_affected": "715",
"product_status:known_not_affected": "6",
"product_status:recommended": "252",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2026-72308",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-72308.json",
"version": "11"
}
}
}
Loading…
Loading…
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.
Loading…
Loading…
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.
Loading…
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.
Loading…