CVE-2026-64462 (GCVE-0-2026-64462)
Vulnerability from cvelistv5 – Published: 2026-07-25 08:51 – Updated: 2026-07-25 08:51
VLAI
EPSS
VEX
Title
PCI: altera: Fix resource leaks on probe failure
Summary
In the Linux kernel, the following vulnerability has been resolved:
PCI: altera: Fix resource leaks on probe failure
The chained IRQ handler is set during probe, but is only removed during the
driver remove(). If pci_host_probe() fails, the handler and INTx IRQ
domain remain set even though the devm-managed host bridge storage
containing struct altera_pcie will be released, leaving the handler with
a stale data pointer.
Interrupts are also enabled before pci_host_probe() is called. If probe
fails after that point, the controller interrupt source should be disabled
before the chained handler and INTx domain are removed.
So set the chained handler only after the INTx domain has been created.
Disable controller interrupts during IRQ teardown, and tear the IRQ setup
down if pci_host_probe() fails.
[mani: commit log]
Severity
No CVSS data available.
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
c63aed7334c21de8d626ff028ccad98cf5847a0e , < af7cf5d56d7d57c4fbfdb7b5b693790f331b07b7
(git)
Affected: c63aed7334c21de8d626ff028ccad98cf5847a0e , < 9cf0cc481e1645ec65e61486ae41c486c59781cb (git) Affected: c63aed7334c21de8d626ff028ccad98cf5847a0e , < 99fc088d6cc6890ae35fa2f29c50ebe027844c20 (git) Affected: c63aed7334c21de8d626ff028ccad98cf5847a0e , < a25bfa2a6665a1d77324d4a609e7513b87680227 (git) Affected: c63aed7334c21de8d626ff028ccad98cf5847a0e , < 0db9aa9ec51be0a0ffdcdfd9af2b7bf3aeb7911a (git) Affected: c63aed7334c21de8d626ff028ccad98cf5847a0e , < 09c43b7b7d29c6fadb27f32cdf7f3bb6598befa9 (git) Affected: c63aed7334c21de8d626ff028ccad98cf5847a0e , < 6864c789b570e57f932847fa83f6b56917182d73 (git) Affected: c63aed7334c21de8d626ff028ccad98cf5847a0e , < 7a94138caeb27f3c49c1dbd93bf422098925bb28 (git) |
|
| Linux | Linux |
Affected:
5.9
Unaffected: 0 , < 5.9 (semver) Unaffected: 5.10.261 , ≤ 5.10.* (semver) Unaffected: 5.15.212 , ≤ 5.15.* (semver) Unaffected: 6.1.178 , ≤ 6.1.* (semver) Unaffected: 6.6.145 , ≤ 6.6.* (semver) Unaffected: 6.12.97 , ≤ 6.12.* (semver) Unaffected: 6.18.39 , ≤ 6.18.* (semver) Unaffected: 7.1.4 , ≤ 7.1.* (semver) Unaffected: 7.2-rc1 , ≤ * (original_commit_for_fix) |
{
"containers": {
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"programFiles": [
"drivers/pci/controller/pcie-altera.c"
],
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],
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"vendor": "Linux",
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},
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"version": "0",
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},
{
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"status": "unaffected",
"version": "5.10.261",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.212",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.178",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.145",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.97",
"versionType": "semver"
},
{
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"status": "unaffected",
"version": "6.18.39",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.1.*",
"status": "unaffected",
"version": "7.1.4",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.2-rc1",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
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"vulnerable": true
},
{
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"versionEndExcluding": "5.15.212",
"versionStartIncluding": "5.9",
"vulnerable": true
},
{
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},
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}
],
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"operator": "OR"
}
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}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: altera: Fix resource leaks on probe failure\n\nThe chained IRQ handler is set during probe, but is only removed during the\ndriver remove(). If pci_host_probe() fails, the handler and INTx IRQ\ndomain remain set even though the devm-managed host bridge storage\ncontaining struct altera_pcie will be released, leaving the handler with\na stale data pointer.\n\nInterrupts are also enabled before pci_host_probe() is called. If probe\nfails after that point, the controller interrupt source should be disabled\nbefore the chained handler and INTx domain are removed.\n\nSo set the chained handler only after the INTx domain has been created.\nDisable controller interrupts during IRQ teardown, and tear the IRQ setup\ndown if pci_host_probe() fails.\n\n[mani: commit log]"
}
],
"providerMetadata": {
"dateUpdated": "2026-07-25T08:51:29.013Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/af7cf5d56d7d57c4fbfdb7b5b693790f331b07b7"
},
{
"url": "https://git.kernel.org/stable/c/9cf0cc481e1645ec65e61486ae41c486c59781cb"
},
{
"url": "https://git.kernel.org/stable/c/99fc088d6cc6890ae35fa2f29c50ebe027844c20"
},
{
"url": "https://git.kernel.org/stable/c/a25bfa2a6665a1d77324d4a609e7513b87680227"
},
{
"url": "https://git.kernel.org/stable/c/0db9aa9ec51be0a0ffdcdfd9af2b7bf3aeb7911a"
},
{
"url": "https://git.kernel.org/stable/c/09c43b7b7d29c6fadb27f32cdf7f3bb6598befa9"
},
{
"url": "https://git.kernel.org/stable/c/6864c789b570e57f932847fa83f6b56917182d73"
},
{
"url": "https://git.kernel.org/stable/c/7a94138caeb27f3c49c1dbd93bf422098925bb28"
}
],
"title": "PCI: altera: Fix resource leaks on probe failure",
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}
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"assignerShortName": "Linux",
"cveId": "CVE-2026-64462",
"datePublished": "2026-07-25T08:51:29.013Z",
"dateReserved": "2026-07-19T15:36:31.789Z",
"dateUpdated": "2026-07-25T08:51:29.013Z",
"state": "PUBLISHED"
},
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"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-64462",
"date": "2026-07-26",
"epss": "0.00184",
"percentile": "0.08312"
},
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"suse_vex": {
"aggregate_severity": "not set",
"current_release_date": "2026-07-25T15:58:52Z",
"cve": "CVE-2026-64462",
"id": "CVE-2026-64462",
"initial_release_date": "2026-07-25T15:58:52Z",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2026-64462",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-64462.json",
"version": "2"
}
}
}
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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.
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