CVE-2026-72023 (GCVE-0-2026-72023)
Vulnerability from cvelistv5
Published
2026-08-15 05:51
Modified
2026-08-23 12:46
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
octeontx2-pf: fix SQB pointer leak on init failure
otx2_init_hw_resources() initializes SQ aura and pool resources before
several later setup steps. On failure, err_free_sq_ptrs only frees SQB
pages, leaving the per-SQ sqb_ptrs arrays behind.
Use otx2_free_sq_res() for the SQ unwind path and let it free sqb_ptrs
even when sq->sqe has not been allocated yet.
The bug was first flagged by an experimental analysis tool we are
developing for kernel memory-management bugs while analyzing
v6.13-rc1. The tool is still under development and is not yet publicly
available. Manual inspection confirms that the bug is still
present in v7.1.1.
An x86_64 allyesconfig build showed no new warnings. As we do not have an
OcteonTX2 PF device and the corresponding AF mailbox setup to test with,
no runtime testing was able to be performed.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: caa2da34fd25a37e9fd43343b6966fb9d730a6d5 Version: caa2da34fd25a37e9fd43343b6966fb9d730a6d5 Version: caa2da34fd25a37e9fd43343b6966fb9d730a6d5 Version: caa2da34fd25a37e9fd43343b6966fb9d730a6d5 Version: caa2da34fd25a37e9fd43343b6966fb9d730a6d5 Version: caa2da34fd25a37e9fd43343b6966fb9d730a6d5 Version: caa2da34fd25a37e9fd43343b6966fb9d730a6d5 Version: caa2da34fd25a37e9fd43343b6966fb9d730a6d5 |
||
{
"containers": {
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"product": "Linux",
"programFiles": [
"drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c"
],
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"vendor": "Linux",
"versions": [
{
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"version": "5.6"
},
{
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"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
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"status": "unaffected",
"version": "5.10.266",
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},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.217",
"versionType": "semver"
},
{
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"status": "unaffected",
"version": "6.1.184",
"versionType": "semver"
},
{
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"status": "unaffected",
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},
{
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"status": "unaffected",
"version": "6.12.101",
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},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.40",
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},
{
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},
{
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"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
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"nodes": [
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},
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}
],
"negate": false,
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}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nocteontx2-pf: fix SQB pointer leak on init failure\n\notx2_init_hw_resources() initializes SQ aura and pool resources before\nseveral later setup steps. On failure, err_free_sq_ptrs only frees SQB\npages, leaving the per-SQ sqb_ptrs arrays behind.\n\nUse otx2_free_sq_res() for the SQ unwind path and let it free sqb_ptrs\neven when sq-\u003esqe has not been allocated yet.\n\nThe bug was first flagged by an experimental analysis tool we are\ndeveloping for kernel memory-management bugs while analyzing\nv6.13-rc1. The tool is still under development and is not yet publicly\navailable. Manual inspection confirms that the bug is still\npresent in v7.1.1.\n\nAn x86_64 allyesconfig build showed no new warnings. As we do not have an\nOcteonTX2 PF device and the corresponding AF mailbox setup to test with,\nno runtime testing was able to be performed."
}
],
"providerMetadata": {
"dateUpdated": "2026-08-23T12:46:27.683Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/fca9c22633169a6c5d429a32e439121b6419e2be"
},
{
"url": "https://git.kernel.org/stable/c/42c2836f10ac0427dac9e9a923d6ee2189dec544"
},
{
"url": "https://git.kernel.org/stable/c/2cac2eac935ed7e0a9203204e036a1f6090ebc3d"
},
{
"url": "https://git.kernel.org/stable/c/148d7ec0a3a98839c320e6cdd112e2e88bfb091b"
},
{
"url": "https://git.kernel.org/stable/c/5e023fe2569e630ba23b5558ebe4bf4837af4d16"
},
{
"url": "https://git.kernel.org/stable/c/5df30f05db96552903680a17f858d250dfd9e86e"
},
{
"url": "https://git.kernel.org/stable/c/23d917acd9c9a9fd999688ec3fdde7aa58ab8a14"
},
{
"url": "https://git.kernel.org/stable/c/62e7df6d042aeebd5efb581074e28865c04477be"
}
],
"title": "octeontx2-pf: fix SQB pointer leak on init failure",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-72023",
"datePublished": "2026-08-15T05:51:48.629Z",
"dateReserved": "2026-08-09T03:40:39.900Z",
"dateUpdated": "2026-08-23T12:46:27.683Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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